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Fellowship Income Can Trigger the Kiddie Tax

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The Kiddie Tax is an alternate, higher rate of calculating tax due that applies to young people. While it was intended to ensure that wealthy parents paid their full share of tax on their investments, it also sometimes applies to graduate students whose income comes primarily from a fellowship or training grant.

Kiddie Tax fellowship graduate student

If you have found this article through search, it’s likely that your (software or human) tax preparer has determined that you owe the Kiddie Tax. This article will help you understand what the Kiddie Tax is, who it applies to, how it is calculated, and how to avoid it in the future.

What is the Kiddie Tax?

Back in the early 1980s, finding tax shelters (i.e., legal ways to avoid paying tax) was all the rage because tax rates were much higher than they are today. The top marginal tax rate was reduced to 50% in 1981 and finally to 28% in 1988 with the last major tax reform prior to the Tax Cuts and Jobs Act (source).

One of the tax shelters was for parents to put income-generating assets in their minor children’s names. The children were (presumably) in much lower tax brackets for investment income than their parents, so overall the family paid less in tax for those assets (source).

In 1986, the “Kiddie Tax” was enacted to close this loophole. Under the Kiddie Tax, a child or young adult’s unearned income is taxed at a higher rate than it would be if they were older (with all other factors being the same).

How Does the Kiddie Tax Affect PhD Students?

The way the Kiddie Tax is written and structured makes sense for the purpose of preventing wealthy parents from sheltering their income using their children. However, it has an off-label effect on PhD students.

The Kiddie Tax applies to all children through age 17, some children through age 18, and some students through age 23. It applies to “unearned income,” which includes not only investment income but also income from fellowships, scholarships, and training grants.

This means that a graduate student under the age of 23 whose income is from a fellowship may be taxed not at the ordinary income rates that they will be at age 24+ but rather at their parents’ marginal tax rate (if it is higher than their own).

(The Tax Cuts and Jobs Act, passed at the end of 2017, changed the alternate tax rate to be the one used for estates and trusts rather than the parents’ marginal tax rate, which it had been historically. This negatively affected college students from low-income backgrounds, who are often funded by scholarships and grants. At the end of 2019, the Kiddie Tax rate was changed back to the marginal tax rate of the parents, which was also retroactively applied for 2018. If you paid the Kiddie Tax in 2018, an amended return may be warranted.)

The PhD students most in danger of the Kiddie Tax applying to them in a way that will massively increase their tax due are those who received fellowship (awarded) income for an entire calendar year, e.g., January of the first year through December of the second year.

Who Has to Pay the Kiddie Tax?

The Kiddie Tax does not apply to every graduate student on fellowship, though it applies to many.

The instructions for Form 8615 lay out who has to file the form and (potentially) pay the Kiddie Tax. There are five qualifications for being subject to the Kiddie Tax, all of which must apply. If any one of the following is not true for you, you aren’t subject to the Kiddie tax.

1) You had more than $2,200 of unearned income.

Taxable fellowship and scholarship income counts as “unearned income.”

The definition of “unearned income” from p. 1 of the instructions for Form 8615 is:

“For Form 8615, “unearned income” includes all taxable income other than earned income. Unearned income includes taxable interest, ordinary dividends, capital gains (including capital gain distributions), rents, royalties, etc. It also includes taxable social security benefits, pension and annuity income, taxable scholarship and fellowship grants not reported on Form W-2, unemployment compensation, alimony, and income (other than earned income) received as the beneficiary of a trust.”

2) You are required to file a tax return.

The Form 1040 instructions (p. 8-11) answer the question of who has to file a return for 2019.

Chart A (p. 9) is for most people under age 65. It states that you must file a return if you are single and your gross income is at least $12,200.

Chart B (p. 10) is for dependents. You are required to file a tax return if you are single and:

  • “Your unearned income was over $1,100.
  • Your earned income was over $12,200.
  • Your gross income was more than the larger of
    • $1,100, or
    • Your earned income (up to $11,850) plus $350″

For the purpose of Chart B only, taxable scholarships and fellowships are “earned income” while “unearned income” includes taxable interest, ordinary dividends, and capital gains distributions.

If your gross income was less than $11,850 and your unearned income (taxable interest, ordinary dividends, and capital gains distributions) was less than $350, you do not need to file a tax return and are not subject to the Kiddie Tax.

Alternatively, you can use the IRS’s Interactive Tax Assistant to determine whether you are required to file a return: Do I Need to File a Tax Return?

3) You are a student under age 24

To be subject to the Kiddie Tax, you must be (Form 8615 p. 1):

  1. “Under age 18 at the end of 2019,
  2. Age 18 at the end of 2019 and didn’t have earned income that was more than half of your support, or
  3. A full-time student at least age 19 and under age 24 at the end of 2019 and didn’t have earned income that was more than half of your support.”

Full-Time Student Status

Form 8615 refers to Publication 501 for the definition of ‘full-time student’ (p. 12):

“To qualify as a student, your child must be, during some part of each of any 5 calendar months of the year:

  1. A full-time student at a school that has a regular teaching staff, course of study, and a regularly enrolled student body at the school, or
  2. A student taking a full-time, on-farm training course given by a school described in (1), or by a state, county, or local government agency.

The 5 calendar months don’t have to be consecutive.

Full-time student. A full-time student is a student who is enrolled for the number of hours or courses the school considers to be full-time attendance.”

You do not have to be a student throughout the calendar year to be defined as a student and subject to the Kiddie Tax. You are considered a student if you are a full-time student in (part of) 5 calendar months, which do not have to be consecutive.

Support Test

Defining support and who/what provided it is the trickiest part of determining whether you are subject to the Kiddie Tax. First, you must determine your support, and then calculate whether your earned income amounted to more than half of your support.

The Form 8615 instructions defines support as (p. 1):

“Support. Your support includes all amounts spent to provide you with food, lodging, clothing, education, medical and dental care, recreation, transportation, and similar necessities. To figure your support, count support provided by you, your parents, and others. However, a scholarship you received isn’t considered support if you’re a full-time student. For details, see Pub. 501, Dependents, Standard Deduction, and Filing Information.”

Publication 501 includes the Worksheet for Determining Support (p. 15), which you must go through in detail. Your support is the amount of money that is used to pay all your living, education, medical, and travel expenses. The education expenses include the tuition, fees, etc. for your graduate degree.

If you do not have earned income totaling at least half of your own support, you may be subject to the Kiddie Tax. Scholarships and fellowships do not count as earned income for this purpose.

The support test being calculated this way creates a very high bar for funded graduate students as tuition can easily rival or exceed living expenses.

4) At least one of your parents was alive at the end of the year

If your parents (including adoptive and step-parents) are deceased, the Kiddie Tax does not apply to you.

5) You don’t file a joint return

If you are single, the Kiddie Tax may apply to you. If you are married filing jointly, the Kiddie Tax does not apply to you.

If you meet all five of these criteria, you need to fill out Form 8615, as the Kiddie Tax may apply to you.

How Is the Kiddie Tax Calculated?

Form 8615 calculates your Kiddie Tax. Part I calculates your net unearned income, and Part II calculates your tax.

You should carefully fill out each line and read the instructions to find the correct definitions. I have highlighted some points about each line specific to fellowship recipients, but you still need to read the full instructions.

Line 1

Line 1 asks for your “unearned income” as defined above. If you had no earned income (i.e., you were 100% on fellowship for the calendar year and had no other income sources), you can use the value from your Form 1040 Line 1. If you had both earned and unearned income, you need to fill out the Unearned Income Worksheet (p. 2 of the form instructions), which subtracts your earned income from your total income.

Line 2

If you took the standard deduction, enter $2,200. If you itemized your deductions on Schedule A, there is a different formula to use in the instructions.

Line 3

Line 3 = Line 1 – Line 2

If the value in Line 3 is 0 or negative, you do not have to pay the Kiddie Tax. (Translation: If you took the standard deduction and your unearned income is less than $2,100, you do not have to pay the Kiddie Tax.)

Line 4

Enter in Line 4 your taxable income from Form 1040 Line 11b (your gross income minus all relevant deductions).

Line 5

Enter in Line 5 the smaller of the values in Line 3 and Line 4.

Line 7

To calculate your tax, you have to use the Line 7 Tax Computation Worksheet on p. 4 of the instructions or the Tentative Tax Based on the Tax Rate of Your Parent Worksheet on p. 5. The first worksheet applies the tax rates for estates and trusts to your unearned income; it is likely more advantageous to you to elect to use the second worksheet, but you will need to know your parents’ and siblings’ incomes for the calculation.

How to Avoid the Kiddie Tax

Once a tax year ends, you run out of opportunities to avoid the Kiddie Tax. To avoid the Kiddie Tax in the current or a future tax year, make sure that at least one of the five above points on who the Kiddie Tax doesn’t apply to is true for you. For example, you could:

  1. Delay your matriculation into grad school
  2. Configure your income and expenses such that you pass the support test, e.g.,
    • Request that you are paid by an assistantship instead of a fellowship for part or all of the calendar year
    • Earn a significant side income
  3. Get married and file a joint return.
  4. Find every applicable qualified education expense to make more of your fellowship income tax-free (e.g., your student health insurance premium if paid by scholarship)

How to Minimize the Kiddie Tax

If you are subject to the Kiddie Tax, the best thing to do is minimize your unearned income and taxable income. If you have any influence with your parents and they are willing and able to minimize their taxable income, please ask them to do the same.

You can minimize your unearned (awarded) income by making as much of it tax-free as possible using your qualified education expenses. This is largely accomplished more or less automatically, but please be thorough in tracking down and documenting every possible qualified education expense, such as course-related expenses and certain fees. Box 1 of your Form 1098-T is likely not the full sum of your qualified education expenses for this purpose.

You can minimize your taxable income by taking additional above-the-line deductions or adjustments to income, such as contributing to a traditional IRA (through April 15 of the subsequent year) or paying student loan interest (during the tax year).

Remarks

The fact that fellowship income triggers the Kiddie Tax is unconscionable and potentially highly financially damaging to an already vulnerable population, graduate students funded by fellowship or awarded income. Despite their lack of earned income, these graduate students are typically financially independent from their parents, so their parents’ income, even if high, is immaterial to their lives. This aspect of our tax code desperately needs reform; however, I am not hopeful that it will be reformed in the near future as it has withstood two recent tax code updates.

Where to Report Your PhD Trainee Income on Your Tax Return (Tax Year 2024)

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There are two broad categories of PhD trainee income: employee income and awarded income. Employee income is W-2 pay, whereas awarded income is any other regular type of income for a graduate student or postdoc, which might be reported on a Form 1098-T in Box 5, a Form 1099-MISC in Box 3, a Form 1099-NEC in Box 1, a Form 1099-G in Box 6, or a courtesy letter—or not reported at all. For US citizens, permanent residents, and residents for tax purposes (the intended audience for this article), both employee and awarded income are supposed to be reported in the ‘wages’ line on your tax return, i.e., Form 1040 Line 1.

This article was most recently updated on 1/17/2025. It is not tax, legal, or financial advice.

PhD where tax return

Where to Report Employee (i.e., W-2) Income

Employee income comes will be reported on a Form W-2. The terms used for employees at the postdoc level vary quite a lot, but at the graduate student level the positions are usually called assistantships (research, teaching, graduate, etc.).

Your gross yearly employee income will appear in Form W-2 Box 1, and the income tax that has been withheld from you pay will appear in Boxes 2 (federal), 17 (state), and 19 (local).

Form W-2 contains instructions for the employee (p. 7), which state: “Box 1. Enter this amount on the wages line of your tax return.”

The wages line of your tax return is Form 1040 Line 1a, which is labeled: “Total amount from Form(s) W-2, box 1.”

The Form 1040 instructions for Line 1a (p. 23) state: “Enter the total amount from Form(s) W-2, box 1. If a joint return, also include your spouse’s income from Form(s) W-2, box 1.”

Where to Report Awarded Income

Awarded income is not given in exchange for work as an employee, and therefore no W-2 is issued. At the graduate student level, awarded income is usually called scholarships, fellowships, and grants. The titles used for postdocs receiving awarded income vary, but they are not considered employees.

Awarded income will be officially reported to the student on a Form 1098-T in Box 5, on a Form 1099-MISC in Box 3, on a Form 1099-NEC in Box 1, or on a Form 1099-G in Box 6. It also might be unofficially reported on a courtesy letter or not appear on any documentation at all.

Further reading:

Please note that you must calculate the taxable portion of your awarded income for the year; it is not necessarily the same as your stipend/salary. Unlike with a Form W-2, you do not necessarily report exactly the amount that appears on your tax form or courtesy letter. See How to Prepare Your Grad Student Tax Return for more details.

Publication 970 Chapter 1 discusses where to report the taxable portion of scholarships, fellowships, and grants (p. 7):

Form 1040 or 1040-SR. If you file Form 1040 or 1040-SR, include any taxable amount reported to you in box 1 of Form W-2 in the total on line 1a. Include any taxable amount not reported to you in box 1 of Form W-2 on Schedule 1 (Form 1040), line 8r.

The Form 1040 Instructions for Schedule 1 Line 8r (p. 24) state:

Line 8r Scholarship and fellowship grants not reported on Form W-2. Enter the amount of scholarship and fellowship grants not reported on Form W-2. However, if you were a degree candidate, include on line 8r only the amounts you used for expenses other than tuition and course-related expenses. For example, amounts used for room, board, and travel must be reported on line 8r.

Why You Should Contribute to Last Year’s Roth IRA

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Good news for you investors: The calendar may say 2021, but you can contribute to your 2020 Roth IRA up until Tax Day (May 17, 2021)! Why is this good news? Because you can continue to contribute to your Roth IRA (if you have contribution room) without taking up contribution room in 2021. In this way, you can roll forward some of your contribution room, even over multiple years. This is particularly useful for those of you expecting income increases in 2022 or so.

The IRS’s Retirement Account Contribution Window Extends until Tax Day

Every calendar year from January 1 to December 31, you can contribute to your retirement account for the current year. This applies to IRAs (Roth and traditional), 401(k)s, 403(b)s, etc. You can also contribute to last year’s retirement account in the subsequent calendar year up through Tax Day. You can even open and fund an IRA for the previous year!

Right now, between January 1, 2021 and May 17, 2021 (Tax Day), you have the choice of contributing to your 2020 IRA or your 2021 IRA assuming you are eligible and have contribution room in both years. In fact, you should contribute as much as you can to your prior year IRA before switching over to the current year IRA.

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Eligibility and Contribution Limits

I’m going to clear up the caveats I’ve been making right here.

Eligibility: You need “taxable compensation” in a calendar year to contribute to that year’s IRA. Employee (W-2) and self-employment income are both taxable compensation. Fellowship income, if not reported on a W-2, was not considered taxable compensation in 2019. However, the definition of taxable compensation was changed for 2020 and following to include taxable fellowship and scholarship income for graduate students and postdocs.

Further listening: Fellowship Income Is Now Eligible to Be Contributed to an IRA!

Contribution limit: The contribution limits on IRAs are pretty low, at least in comparison with workplace-based retirement accounts like 403(b)s and 401(k)s. For 2020, you can only contribute a maximum of $6,000 ($7,000 for those over age 50) or the amount of taxable compensation you had in the calendar year, whichever is lower. You do not have to contribute the entire $6,000 in a year; it’s fine to contribute $1,000 or $3,000 or whatever you can. When I say contribution room throughout this post, I mean the difference between your contribution limit, e.g., $6,000, and the amount you’ve already contributed.

Why Is Contributing to an IRA So Important?

You may be asking yourself why I’m writing about Roth IRA contributions in particular. After all, once you’re out of graduate school and actually able to save more money, don’t you have a reasonable expectation of receiving a 401(k) or similar employee benefit?

1) Yes, you probably will work somewhere that provides you with a 403(b) or 401(k) or other type of workplace-based retirement account (or you’ll be self-employed and have self-employment retirement accounts available to you). Exception: Some postdoc positions (and adjunct!) might not offer a 403(b). But you don’t know the future, so I think it’s better to be cautious and roll forward as much contribution room as you can.

2) Even if you have a workplace-based retirement account available to you, the rule of thumb for retirement contribution priority is: workplace up to the match, IRA, then workplace again. This is because you can buy just about any fund you want through any brokerage firm in your IRA, whereas your options in your workplace based account will be severely limited. It is assumed that you can find better quality (read: cheaper) investment options through your IRA, so that should be prioritized. However, you should definitely check out your options through your workplace account before assuming this is true for you; some universities offer good, low-cost institutional investment options that might be even better than what you can buy as an individual.

3) Your workplace might only offer a traditional retirement account, so an IRA will give you the option of using a Roth, which you could take if you think it’s the better choice for you in a given year.

Why Am I Specifying a Roth IRA?

As far as your taxes go, if you’re contributing to a Roth IRA in both calendar years, it doesn’t matter which one you choose during the overlapping period. If you were contributing to a traditional IRA instead, it would matter: Your contributions to last year’s IRA would count for a tax deduction on last year’s tax return (hence being able to contribute up until Tax Day). But with a Roth IRA, you aren’t taking a tax deduction, so you’ll pay your full tax on the contribution no matter in which year you make it.

Always Contribute to Last Year’s IRA First

Now we come to my suggestion to contribute as much as you can to last year’s IRA before switching to this year’s (aka roll forward contribution room), either because you have reached your contribution limit or because Tax Day has passed.

The advantage is most clearly seen in the year that you experience an increased ability to contribute to your IRA (as long as you haven’t been maxing out your contribution room). This could happen because:

  • You decrease your expenses so that you can save more
  • You start earning a side income
  • You finish your PhD and take a higher-paying position (postdoc or Real Job)
  • You finish your postdoc and get a Real Job

In these cases, you may be able and want to contribute more than $6,000 to your IRA in one calendar year, and you are only able to do that if you split the contribution between your prior year IRA and your current year IRA.

But you should practice this every year, not just in a year when you expect an increased ability to contribute because:

  • You don’t know what will happen throughout the whole next calendar year, and your ability to contribute to an IRA could increase unexpectedly (e.g., you receive a windfall, a side income presents itself, you decide to leave grad school/your postdoc early for a better-paying job, you combine finances with a higher-earning person).
  • You can roll forward your contribution room into future years. For instance, if you can contribute $5,000 each calendar year to an IRA, you can carry forward some or all of your $1,000 excess contribution room, so that in the year that you are able to contribute more, for example, you can contribute $6,000 to your current year IRA and perhaps $1,000 to your prior year IRA.

An Illustration (with Numbers!)

The advantage of this strategy is more easily understood with an example.

Let’s say you’re a graduate student in 2020 and 2021, earning $30,000 per year. You are a superstar saver, so you contribute 12% of your gross income to your Roth IRA every month. In 2020, your total contribution to your 2020 Roth IRA was $3,600.

In the first five months of 2021, you continue to contribute to your 2020 Roth IRA, which brings your 2020 Roth IRA contributions up to $5,100. In the seven remaining calendar months of 2021, you contribute $2,100 to your 2021 Roth IRA. Your remaining contribution room for 2021 is $3,900.

January 2022 hits and you start a Real Job! Your new yearly salary is $72,000, and you increase your savings rate to 20%. This means that you can put $1,200 each month into your retirement account(s).

In the first four months of 2022, you max out your 2021 Roth IRA with $3,900 and also put $900 into your 2022 Roth IRA or other retirement account options. You can use the rest of 2022 to max out your 2022 Roth IRA and contribute to your other retirement account options.

In this example, you ended up contributing $17,100 to your Roth IRA over three years ($5,100 in 2020, $6,000 in 2021, and $6,000 in 2022). Had you not rolled forward your contribution room, you would have contributed only $13,200 to your Roth IRA ($3,600 in each of 2020 and 2021 and $6,000 in 2022). (The rest of the money would go into your other retirement account options in 2021, presumably.)

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The Psychology of a Ceiling

The previous illustration assumed that you would save at the same rate no matter what contribution room you had available or what account you used. However, if you are a competitive person, you might benefit even more from rolling forward your contribution room by contributing to your prior year Roth IRA first.

I’ve noticed that many people strive to max our their Roth IRAs each year, irrespective of the actual amount or percentage they might otherwise want to save. They use the contribution limit as their goal. This is not a good thing if you would otherwise contribute more than the limit, but I think many grad students and postdocs might have the opposite issue: without the limit serving as an implicit goal, they might contribute less than the limit.

By rolling forward your contribution room, you can create ever-higher savings rate goals for your Roth IRA, which might modify your behavior and help you save even more overall.

I fell victim (in a good way!) to this psychology in a similar scenario. When I started contributing to my Roth IRA, my goal was 10% ($2,400) per year. But once I found out that my now-husband maxed his Roth IRA out every year, I made keeping up with him and maxing out my goal, too. I found creative ways to gradually increase my savings rate. I didn’t quite make it to $5,500/year (the contribution limit at the time) by the end of graduate school, but I sure got a lot closer than $2,400/year.

I think the contribution limit can create the same kind of competitiveness, and rolling forward your contribution room makes the challenge even greater.

My Personal Experience with Contributing to Prior Year Roth IRAs

A couple years before we finished our PhDs, my husband and I started following this suggestion of contributing to our prior year Roth IRAs as much as possible before switching to our current year Roth IRAs. It seemed not to matter much for a couple years until we experienced an income increase, and then having the extra contribution room was really helpful.

My husband’s Real Job offered a 401(k), but it was through a notoriously expensive full-service brokerage firm, which we did not want to use. Instead, we contributed our target amount of savings to our Roth IRAs (still maxing out the prior year first) and a self-employment retirement account (available through my business). The extra Roth IRA contribution room we created through rolling forward was particularly helpful in the transition year because 1) it took some time to figure out our 401(k) and self-employment retirement account options and 2) my contribution room in my self-employment retirement account wasn’t very high after working on the business for only a few months.

Further reading: Avoiding an Expensive 401(k) Plan through Self-Employment

How to Successfully Plan for Retirement Before and After Obtaining Your PhD

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In this episode, Emily interviews Dr. Brandon Renfro, a finance professor and financial advisor. Brandon shares the tortuous path that led him to his current faculty position at East Texas Baptist University and side business in retirement advising. They discuss the long-term financial effects of doing a PhD – both positive and negative – and how to have a successful retirement even if you can’t save (much) during your PhD training.

Links mentioned in episode

PhD plan for retirement

0:00 Introduction

1:05 Please Introduce Yourself

Dr. Brandon Renfro has a PhD in Finance. He is both an academic and a practitioner. He advises retirement advising for individuals. He does financial planning while being a tenure track professor.

2:02 What was your career trajectory?

Brandon says that he “walked backwards” or stumbled into his PhD. As an undergraduate, he planned to go to law school. He was advised to major in business in preparation for law school. He took an American enterprise course and saw a presentation about the time value of money in the retirement planning context. This presentation inspired him, so he majored in finance and loved it. He went to law school but says he crashed and burned. He was in the military and had GI bill benefits. He decided to use his GI bill benefits for an Master of Business Administration (MBA). He asked his MBA advisor about adjunct teaching. He had to have 18 graduate hours in the discipline to teach a course. He discovered he loved teaching. He decided he wanted to teach full time. He feels fortunate that he got a tenure track position at a liberal arts college in Louisiana, where he worked for three semesters. Now he is in his third semester at East Texas Baptist.

Emily points out that Brandon tried stuff and saw what stuck. Brandon agrees that this is important to explain to students today. He says many students set a goal and stick to it no matter what, even if the path isn’t right for them. He says there is a time when you should recognize if you don’t love what you’re doing and you should try something different. Brandon says he would tell his 18 year old self to major in finance, but at the time it didn’t occur to him.

Emily asks how Brandon handled the sunk costs of going to law school. Brandon clarifies that he didn’t meet the GPA requirements to continue law school but he wasn’t sad about it. He says he was miserable in law school. He had taken out loans to pay for the year in law school. He says it was $20,000 that he spent to learn that he didn’t want to be an attorney. He says if he looks at it like it’s money he spent to learn that he loves being a finance professor, it was worth it.

7:47 Given that a person has decided to do a PhD and maybe a postdoc, what are the effects of their financial outlook?

Emily starts by explaining that graduate students, postdocs, and early career PhDs have a lot of anxiety around saving for retirement. Most of these people are in their 20s or 30s and they know they are supposed to be investing for retirement. But planning for retirement feels overwhelming in the context of their competing financial demands, like student loan payments or saving for a house down payment, coupled with their suppressed income for an extended period of time.

Brandon says that if you put off starting a career to do a PhD, this will make saving and preparing for retirement a little more challenging. These are foregone years of savings. However, academics have the ability to work past typical retirement age. As a professor, you can work longer and save money for retirement for more years, even if you start work and start saving a little later in life. Emily clarifies that PhDs can add years on the back end, instead of on the front end, to the total years that they can work to save for retirement. PhDs can do this because their work is fairly intellectual, and hopefully they get better with time. It’s less daunting to add years at the end in these career paths than others. Brandon says it’s (physically) easier to talk about what you know than it is to work on a factory floor, and you can prolong the years you do this kind of work. Even as PhDs reach retirement age, they have options to be an instructor, lecturer, adjunct, or consultant. You can work less than a full time load, and still capitalize on your years of experience.

Brandon says even while you’re working in your 30s or 40s, you have the ability to leverage expertise outside the classroom. Even if you are working a full time tenure track position, you have a lot of knowledge that you can leverage in industry, even while you’re teaching. Emily shares that when she was an engineering PhD student at Duke University, she saw plenty of professors had consulting businesses or wrote books. In academia, there are many ways to step outside your primary role and leverage your expertise. Emily says that there are plenty of opportunities to have side hustles all through your career. She is part of a community of self employed PhDs, and many people’s self employed job is on the side of their full time job. Brandon believes there is a lot of potential for academics to be self employed. He says even if you were the lowest ranked student in the lowest ranked PhD program, you still have knowledge and you are already part of a select group. Emily says any PhD can find a market where their skills are valuable. They give examples of formatting and copy-editing and tutoring.

17:13 How can someone handle the income jump after the suppressed income period of being a trainee in a PhD or postdoc?

Brandon says in one phrase, avoid “lifestyle creep.” When you suddenly go from an undergraduate or PhD student lifestyle based on lower income to receiving a full time income, you need to be mindful to not immediately start living at the new income. He says you don’t need to be extremely frugal, but use a moderate amount of your new income to build your emergency savings, pay down consumer debt, and pay down student loans in order to be much better off in the long run.

Emily shares the standard personal finance advice to commit a large percentage of your raise to your financial goals. Either all of the raise or as much of the raise as you can, put it towards goals instead of your consumption spending. She says it applies even more when you have a large income jump. Most of it should be used to accelerate financial goals. When Emily and her husband finished their PhD programs, they applied this concept to their new “real jobs” income. They had several financial goals that they focused on and avoided lifestyle creep.

Brandon shares his story about buying a house. He was unsure where he would get his tenure track position, but he wanted to build equity without committing his family to a large mortgage payment. He bought a small rent house before they bought a house to live in. Emily brings up that some people rent their properties as they move, in contrast to how Brandon purchased the property purely as a rental property.

23:40 Grad students and some postdocs don’t pay into the social security system. What are the long term effects of missing out on these years of contributions?

Brandon explains that social security benefits are based on 35 years of covered earnings. Essentially, it’s an average of your highest 35 years of earnings. If you’re starting to contribute later, do the math. If you’re in your early 30s, you may be in your late 60s before you have 35 years of covered earnings. The issue is that your benefit will be calculated with some zeros in the 35 year average, which skews down your average. When you’re on the back end of your career, this may influence your decision to work for a few more years to replace some of the years where you contributed zero dollars to social security.

26:59 What steps can someone who’s in or recently been in PhD training do to mitigate negative effects of lower income and not contributing to retirement?

Brandon brings up the psychological benefit of being used to living on a small income. He says to continue to live like that for a couple of years so that you can build yourself a financial cushion and start saving for retirement. He says eventually the feeling goes away and you get used to the new level of income. Psychologically, it’s harder to start saving for financial goals later.

Emily says that this is classic personal finance advice. Sometimes the lifestyles of PhD students are lower than those of college students. She says it’s difficult to deflate lifestyle. You might see the higher paycheck from your first real job, then you lock yourself into higher housing costs or buy a new car. It’s difficult to take a step back, but it’s much easier to keep a similar lifestyle and put the new income to your financial goals and slowly work up your lifestyle.

30:16 If a person starts saving during graduate school, what kind of effect can that have on retirement?

Brandon explains the first presentation that he saw on the effect of compound interest. If you started when you were 18 years old and you saved just $2,000 per year in a retirement account, you would have a million dollars for retirement if you simply earned the average market return. He says the same is still true if you start at 30 or 32, but there are a few less years for compounding to take effect.

Emily says that even during graduate school, saving a couple hundred dollars a month is accessible. It’s not a thousand dollars every month that you need to save. The earlier you take these steps, the more and more impact it can make. It really does make a difference to take these steps earlier.

Brandon adds that at least, don’t make negative steps. Buying a cheaper car or cheaper clothes can go a long way. Emily says that the professional students, like law students, were living a higher lifestyle even though they were living on loans. She says the smallest amount of debt that you have to take on during training will make it easier for you in a few years.

35:50 What do you do for clients?

Brandon can help with anything within realm of retirement planning. He can help someone starting out. He can help graduate students and postdocs sort through their different options for retirement plans. He can help with decisions about how to invest within retirement plans. Brandon encourages you to take retirement very seriously and to think very hard about putting off retirement. He says it’s really hard to make a strong case against contributing to a plan with an employer match. He says employer match is essentially free money. Emily says an employer match is a 50% or 100% return on investment.

Emily clarifies that someone looking at different options can ask Brandon for help considering which option to prioritize. Brandon can help overcome “analysis paralysis.” Brandon says something is almost always better than nothing, and you need to just do something. He encourages you to envision your retirement and what your financial goal looks like.

40:03 Final Comments

Brandon’s contact information is at brandonrenfro.com. If anyone has a question about something that he hasn’t published an article about on his website, send him an email and he will write about it!

41:15 Conclusion

How to Financially Manage Your NSF Graduate Research Fellowship

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Congratulations on being awarded the National Science Foundation (NSF) Graduate Research Fellowship (GRF) (or a similar remunerative, competitive, national fellowship)! Whether you’re a prospective grad student or a current first- or second-year PhD student, this fellowship is a great boon to your research, your CV, and almost certainly your finances. However, you may not yet realize that your finances will become a bit tricky once you start receiving your fellowship. With the help of this article, you can avoid the pitfalls associated with fellowship income and fully capitalize on the benefits.

NSF GRFP stipend

Further listening: The Financial and Career Opportunities Available to National Science Foundation Graduate Research Fellows

The NSF GRFP’s Negotiation Power

I’m sure you didn’t miss this headline info about the NSF GRFP: The fellowship pays you a stipend of $34,000 plus $12,000 of educational expenses to your institution for three years. Awesome! At the majority of universities in the US, that stipend amount is well above what you would be paid if you didn’t receive the fellowship, so you’ve effectively achieved a raise for the next three years.

But the good news doesn’t stop there: Your university/department might confer even more benefits upon you for winning independent funding. If the administration isn’t forthcoming about these additional benefits, it is appropriate to inquire about them.

Independence

Your new outside funding may give you a degree of independence in your research that you wouldn’t otherwise enjoy. This is highly dependent on your field, department, and advisor, but the fellowship may enable you to take your doctoral research in a direction that you advisor couldn’t or wouldn’t have supported without it. Perhaps you could take a risk on a side project, establish a new collaboration, or take extra time to rotate through a lab to gain new skills.

Additional Funding

At many universities, there is a standard offer of additional funding for winning a multi-year, lucrative fellowship like the NSF. This offer could come in one or more forms, such as:

  • A guarantee of funding for additional years
  • A one-time bonus
  • A stipend supplement above $34,000 while you have the fellowship
  • A stipend supplement after the fellowship concludes (e.g., up to $34,000/year for your remaining time in graduate school)

Not all departments offer additional funding to NSF GRFP recipients, but it’s worth inquiring about with your advisor, the administration, and current NSF fellows at your university. Stipend supplements during the time that you receive the NSF GRF are more common in high cost-of-living cities where the departmental base stipend is near $34,000/year to begin with. For example, searching “NSF” in the PhD Stipends database reveals stipend supplements awarded during the NSF GRFP years to students at the University of California at Berkeley, Northwestern University, and Columbia University, while a student at the University of California at San Diego writes that he/she received no funding incentive for winning the NSF GRF.

For Prospective Graduate Students

You’ll never have more negotiation power than you do as a prospective graduate student with an outside fellowship in hand. Unfortunately, you don’t have a lot of time to negotiate as the NSF GRFP awards list comes out approximately two weeks before grad school decision day, April 15.

Further reading: Vote with Your Feet, Prospective Graduate Students

As quickly as possible, you need to clarify if the offers from the universities you are still considering are going to be sweetened at all now that you have your fellowship. If the financial package from your preferred university isn’t up to par with your other offers (after considering cost of living differences), you can tactfully ask if a bonus, stipend supplement, or guarantee of future funding is possible.

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Budgeting with Your Fellowship Income

There are two vital questions you need to ask of your department before you can begin creating a budget for your NSF GRF stipend.

  1. After the fellowship ends, what will my stipend be?
  2. How frequently is my fellowship disbursed?

Accelerate Progress on Financial Goals

In my ideal personal finance-oriented world, an NSF fellow would live on (less than) the base stipend from his department and put all the excess income received toward growing his wealth. There are a few advantages to that approach:

  • Your lifestyle roughly matches that of your peers in your department.
  • You can relatively quickly achieve financial goals such as saving or debt repayment.
  • If your income is set to drop once the fellowship ends, you avoid acclimation to the higher, temporary income and don’t have to make major lifestyle sacrifices once the three years are up.

Some financial goals you could work on during the time you receive the additional fellowship funds are:

  • Eliminating any troublesome debt (e.g., credit card balances, medical debt, car loan)
  • Saving up cash for short-term needs and expenses (e.g., emergency fund, targeted savings accounts)
  • Investing for long- and mid-term goals (e.g., retirement, house down payment)
  • Pay down student loans

Further reading:

This strategy is easiest to implement for graduate students who start the NSF GRF after one or more years in grad school. Just put all of your ‘raise’ toward financial goals and don’t change anything about your lifestyle! Prospective grad students will have to be more conscious about setting up their grad student lifestyle on a lower income than they will start out with.

Preparing for the Post-Fellowship Income Drop

If you choose to upgrade your lifestyle with your fellowship stipend, be careful to maintain any long-term financial contracts at a level that will be sustainable for you after your income drops (if it will). The two key areas to watch out for are housing and transportation expenses. While it is possible to reduce your spending in either of these areas during grad school, it is a painful process, so it is preferable to lock in your spending in those areas at a level that you can maintain long-term.

Budgeting with an Irregular Income

Sometimes, fellowships are disbursed to the recipient at a frequency other than monthly, e.g., once per term. This schedule can cause issues for budgeting, which is usually framed as turning over each month.

One of the advantages of an infrequent disbursement schedule is that you are paid at the beginning of the period rather than the end, so the money you need throughout the period is already available to you. However, you may not be able/inclined to use typical budgeting software functions and prefer to set up your own budgeting system.

One of the most useful budgeting concepts for people with irregular incomes is that of fixed vs. variable expenses. At the beginning of your budgeting period, project the fixed expenses that will be paid during the period, such as your rent/mortgage, debt payments, certain utilities, subscriptions, etc. Then allocate your remaining income to your variable expenses at a frequency that is convenient for you. For example, you can estimate the variable utility bills that you may pay monthly during the period, plan to spend no more than a certain amount of money each week on groceries, and give yourself a lump sum of money for entertainment for the entire period to be spent as opportunities arise. In this way, allocate your fellowship disbursement so that you are sure that your expenses won’t exceed your income (leaving some buffer for unexpected expenses).

Income Tax Implications of the NSF GRFP

Your NSF GRFP stipend is subject to federal income tax. (It is usually subject to state and local income tax as well, but there are some exceptions.)

Further reading:

However, the taxation of fellowship stipends is handled completely differently by universities than assistantship pay.

Tax Reporting

While assistantship pay is reported on a W-2, fellowship stipends are not required to be reported in any particular way.

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A large fraction of universities, possibly the majority, do not report outside fellowship stipends on any official tax form. At most, the fellow might receive a courtesy letter, which is an informal letter stating the amount of the fellowship stipend received during the calendar year.

Some universities report fellowship stipends on Form 1098-T in Box 5 (along with other scholarship and grant income).

A small minority of universities report fellowship stipends on Form 1099-MISC in Box 3.

Whatever reporting mechanism used or not used, the important information to bring to your tax return preparation process is the amount of fellowship stipend paid to you during the calendar year. From that point, the fellowship stipend income is treated the same as any other fellowship/scholarship/grant income, and (possibly after some adjustments) it will ultimately be taxed as ordinary income.

Further reading:

Quarterly Estimated Tax

While you are required to pay federal and usually state income tax on your fellowship stipend, the vast majority of universities do not offer automatic income tax withholding on your fellowship stipend as they normally do for employee pay. (You should inquire whether automatic withholding is an option and use it if so, but the remainder of this section assumes it is not offered.)

This means that you will receive 100% of your gross fellowship stipend instead of your stipend net of income tax as you would assistantship pay. However, the IRS still expects to receive income tax payments throughout the year, so you will have to look into filing quarterly estimated tax.

Further reading: The Complete Guide to Quarterly Estimated Tax for Fellowship Recipients

As a default position, you should assume you are responsible for paying quarterly estimated tax. It’s possible that you won’t be required to in the year you switch on or off of the fellowship or if you’re married to someone with a high income and high withholding, but even in those cases it’s prudent to check.

The way you calculate your quarterly estimated tax due (and figure out if it’s required of you) is by filling out Form 1040-ES. That form will give you the amount of the payment you are supposed to make four times per year and an estimate of your total tax due for the year. You can make the payment online at IRS.gov/payments or through a host of other mechanisms.

Whether or not you are required to file quarterly estimated tax, it’s a great idea to set up a personal system that simulates automatic tax withholding. Open a separate savings account labeled “Income Tax” and transfer in the fraction of each paycheck you receive that you ultimately expect to pay in tax each time you are paid. Then, draw from that savings account when you make your quarterly or yearly tax payments.

Investing Implications of the NSF GRFP

The upside of receiving the NSF GRF is that your income is most likely higher than it would have been, which means you have an increased ability to achieve financial goals during graduate school such as debt repayment, saving, and/or investing.

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Through 2019, fellowship income, like that of the GRFP, was not eligible to be contributed to an Individual Retirement Arrangement (IRA). However, starting with tax year 2020, fellowship income is eligible to be contributed to an IRA, eliminating the only major downside of receiving fellowship income.

Further listening: Fellowship Income Is Now Eligible to Be Contributed to an IRA!

An IRA is a tax-advantaged retirement savings vehicle. It’s a great idea to use an IRA (or other tax-advantaged retirement vehicle such as a 401(k) or 403(b)) for your retirement savings as it helps you maximize your long-term rate of return by protecting your investments from taxes. As a graduate student, you almost certainly don’t have access to the university 403(b), so the IRA is basically the only game in town for tax-advantaged retirement savings.

Further reading:

The Complete Guide to Quarterly Estimated Tax for Fellowship Recipients

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If you’re reading this article, you’ve already done the hard part: You know (or suspect) that you’re supposed to pay quarterly estimated tax on your fellowship using Form 1040-ES. Whether you’re a graduate student, a postdoc, a postbac, or some other kind of fellow or trainee, if you’re not having tax withheld from your income, it’s pretty likely that you have the responsibility of paying quarterly estimated tax. The main obstacle to PhD students and postdocs paying quarterly estimated tax is simply awareness! The process itself is not complicated or difficult, as I’ll show you in this complete guide to quarterly estimated tax for fellows.

complete guide quarterly estimated tax

If you’re still unsure that you owe income tax at all on your fellowship income—or you want to help your peers understand this issue as well—I have plenty of articles and podcast episodes on that topic in particular.

Further reading and listening:

This article is for US citizens, permanent residents, and resident aliens living and working in the US, and I’ve made the assumption that you are not, in addition to being a fellow, a farmer, fisherman, or business owner/self-employed, that you do not have any household employees, and that your adjusted gross income is less than $150,000. (There are additional factors at play for these groups with respect to calculated estimated tax due.)

This post is for educational purposes only and does not constitute tax, legal, or financial advice.

This post was most recently updated on 3/21/2024.

Table of Contents

This article is an overview of how to handle estimated tax as a fellowship recipient. For an in-depth, line-by-line exploration of the Estimated Tax Worksheet in Form 1040-ES that addresses the common scenarios fellowship recipients face, please consider joining my tax workshop. It comprises pre-recorded videos, a spreadsheet, and quarterly live Q&A calls with me.

Click here to learn more about the quarterly estimated tax workshop for fellows.

What Is Estimated Tax?

The IRS expects to receive tax payments from you throughout the year, not just in the spring when you file your tax return.

To that end, employers offer automatic tax withholding to their employees. The employee files Form W-4 with the employer. This form helps the employee perform a high-level calculation about the amount of income tax the employee will owe for the year, which tells the employer approximately how much income tax to withhold from each paycheck. (Non-student employees will also have FICA tax withheld.)

Non-employees are almost never extended the courtesy of automatic income tax withholding by their university/institution/funding agency. (Income tax withholding for fellowship/training grant recipients is offered in rare cases—Duke University is one, at least while I was there—so it is worth inquiring about, but don’t be surprised if the answer is no.) Instead, the onus is on the individual to manually make tax payments.

By the time a person/household files a tax return in the spring of each year, the IRS expects the tax paid throughout the year to be in excess of or only slightly less than the actual amount owed. Approximately 3 in 4 Americans receive a tax refund (the amount of tax paid throughout the year minus the actual amount owed) after filing their tax returns. The rest, presumably, owe some additional tax when they file their tax returns. If the amount of additional tax due (above the amount paid throughout the year) is too high, the IRS will penalize the taxpayer.

To help taxpayers avoid underpaying tax throughout the year and being penalized, the IRS has set up a method of making manual tax payments four times per year: quarterly estimated tax payments. Anyone whose primary income isn’t subject to automatic withholding (e.g., fellowship recipients, self-employed people) or who has significant income in addition to their employee income (e.g., investment income) should look into making quarterly estimated tax payments.

Who Has to Pay Estimated Tax?

In general, you should expect to pay income tax in the year you receive your fellowship unless:

  • Your income is particularly low (e.g., you had an income for only part of the year or your fellowship went toward qualified education expenses instead of your personal living expenses) or
  • Your tax deductions and/or credits are particularly high.

Your tax due for the year might be large enough that you are required to make quarterly estimated tax payments or small enough that you can skip the quarterly payments and pay all the tax due at once with your annual tax return.

The dividing line is $1,000 of tax due at the end of the year in addition to the tax you had withheld and your refundable credits. If you expect to owe more than $1,000 in additional tax for the year, you should make quarterly tax payments, unless you fall into one of the exception categories discussed in the next section. If you expect to owe less than $1,000 in additional tax, you don’t have to make those quarterly payments and will just pay everything you owe with your annual tax return.

For individuals who receive only fellowship income not subject to tax withholding throughout the calendar year, the calculation is straightforward: How much income tax will you owe for the year, greater or less than $1,000?

For individuals/households with fellowship income not subject to withholding plus employee income subject to withholding (e.g., one person with part-year fellowship income and part-year employee income, one spouse with fellowship income and one spouse with employee income), both the total amount of tax owed across all incomes and the amount withheld must be taken into consideration. If you will owe more than $1,000 in additional tax at the end of the year and don’t fall into an exception category, you should file quarterly estimated tax.

Having a combination of fellowship and employee income is very common for PhD trainees, especially if they are married. My tax workshop addresses how to handle this particular scenario in detail.

Click here to learn more about the estimated tax workshop.

Who Doesn’t Have to Pay Estimated Tax?

Some people who owe more than $1,000 in additional tax at the end of the year are not required to make quarterly estimated tax payments.

  1. If you had zero tax liability in the previous tax year, you are not required to make quarterly estimated tax payments in the current tax year. For example, if last year you were a undergrad or grad student with a low enough income that you didn’t pay any income tax, you’re not required to make quarterly estimated tax payments this year. Please note this refers to your overall tax liability for the year, not whether you had to make a payment when you filed your return.
  2. If the sum of your tax withholding throughout the year and refundable credits equals or exceeds 90% of the tax you expect to owe this year, you are not required to make quarterly estimated tax payments. For example, if your spouse earns the lion’s share of your household income and has a generous amount of tax withheld automatically, your household’s overall tax withholding might be sufficient to exempt you from making quarterly estimated tax payments on your fellowship.
  3. If the sum of your tax withholding throughout the year and refundable credits equals or exceeds 100% of the tax you owed last year, you are not required to make quarterly estimated tax payments. For example, if last year you finished undergrad and started grad school with a stipend, your tax owed for the year was likely quite small. If you have assistantship pay with tax withholding for part of this year and then switch to a fellowship with no withholding, your tax withholding from your assistantship might cover 100% of your tax owed from last year, and you wouldn’t be required to make quarterly estimated tax payments.

The best way to estimate your tax due this year along with your withholding and refundable credits and determine whether you are required to pay quarterly estimated tax is to fill out Form 1040-ES.

Psssst… Want to take a shortcut? If you have no interest in filling out Form 1040-ES’s Estimated Tax Worksheet, join my tax workshop. I explain a shortcut method to make sure you pay enough in estimated tax to avoid a fine without having to complete an advance draft your tax return this year. This method will only take a few minutes!

Click here to learn more about the quarterly estimated tax workshop for fellows.

Fill Out the Estimated Tax Worksheet in Form 1040-ES

Form 1040-ES, specifically the Estimated Tax Worksheet (p. 8), guides you through 1) estimating the amount of tax you will owe for the year, 2) determining if you are required to make quarterly estimated tax payments, and 3) calculating the amount of your required estimated tax payment.

I’ll point out a simple approach to filling out the Estimated Tax Worksheet for individual taxpayers/households with only fellowship and employee income. If you additionally have self-employment income or other types of income, your approach will be more nuanced.

If your fellowship income is disbursed frequently throughout the year (e.g., once per month for the entire year), this simple method will work for you. If your fellowship income is disbursed infrequently (e.g., 1-3 times per year) or throughout only part of the year (e.g., only the fall term after switching funding sources), keep reading for an alternative method.

The important numbers a fellowship recipient needs to plug in to Form 1040-ES to fill it out are:

  • Line 1: Your expected Adjusted Gross Income (AGI), which is your total income for the year less your above-the-line deductions (e.g., deductible portion of student loan interest paid, traditional IRA contributions). Your AGI includes your fellowship income, taxable scholarship income (if applicable), and any wages you (and your spouse) received, e.g., from an assistantship.
  • Line 2: Your deductions. If you plan to itemize your deductions, you should enter the total of those itemized deductions in line 2a; otherwise, enter the amount of your standard deduction (in 2024: single $14,600, married filing jointly $29,200).
  • Line 7: The sum of your credits if you plan to take any. Examples of credits include the Lifetime Learning Credit, the Child Tax Credit, and the Child and Dependent Care Credit.
  • Line 11b: The sum of your refundable credits if you plan to take any, such as the Earned Income Credit or the Additional Child Tax Credit.
  • Line 12b: Your total tax liability for the prior year.
  • Line 13: Income tax you expect to be withheld throughout the year. This can generally be extrapolated from your most recent pay stub.

If you come to the worksheet with this set of numbers, all you need to complete it is to follow the arithmetic steps instructed in the form and to look up your tax due using the Tax Rate Schedule on p. 7.

Once you fill out the worksheet, line 11c will tell you the total amount of tax that it is estimated you will have to pay for the year. The rest of the form helps you determine the minimum amount of quarterly estimated tax you have to pay to avoid a penalty, which might be $0. Both of these numbers are key for your tax planning for the year; don’t just make the minimum payments necessary and forget that you might owe additional tax along with you tax return in the spring.

Are you curious about the rest of the lines in the Estimated Tax Worksheet and wondering if you need to fill them out? My workshop devotes a module to explaining each line so you can determine if they apply to you or not.

Click here to learn more about the estimated tax workshop.

Method for Irregular Income

If you receive your income unevenly throughout the year, the IRS has a method for calculating a different amount of estimated tax due in each quarter, the Annualized Income Installment Method (see Publication 505).

Essentially, you calculate your tax due for each quarter based on your cumulative income up to that point of the year. Ultimately, you can pay the lesser of the estimated tax calculated through this worksheet or the quarterly estimated tax calculated from the previous method. (This is helpful if your income is higher later in the year than earlier; you don’t have to pay the extra tax until you actually receive the income.)

If you receive your fellowship income irregularly throughout the year—particularly if you are paid more later in the year than earlier—and want to be very exact about the amount of estimated tax you pay each quarter, you should fill out the Annualized Income Installment Method Worksheet after you complete the Estimated Tax Worksheet.

However, the Annualized Income Installment Method is a very complicated and fiddly worksheet, so if you don’t mind just making the regular quarterly payments, perhaps with guesstimate adjustments, that’s going to be faster and easier. For example, if you have tax withholding in place for much of the year through your assistantship but switch to fellowship funding for just the fall semester, your estimated tax payments all need to be made in the last one or two quarters, not the earlier part when you were having tax withheld.

Join my tax workshop for more details on how to handle quarterly estimated tax when you switch on or off of fellowship mid-year, a common scenario for fellowship recipients.

Click here to learn more about the estimated tax workshop.

Paying Your Quarterly Estimated Tax

If you are required to pay quarterly estimated tax, you have many options for doing so, such as by mail, over the phone, and through the IRS2Go app. The easiest method is most likely through the website IRS.gov/payments, where you can choose to make a direct transfer from your checking account for free or to pay using a debit or credit card for a fee.

The due dates for your 2024 quarterly estimated tax are:

  • Q1: April 15, 2024
  • Q2: June 17, 2024
  • Q3: Sept 16, 2024
  • Q4: Jan 15, 2025 (or Jan 31, 2025 if you file your annual tax return by that date)

Please note that these dates are not at 3-month intervals. Quarter 1 is three months long; quarter 2 is two months long; quarter 3 is three months long; quarter 4 is four months long.

Penalties for Underpaying Tax throughout the Year

There are penalties for failing to make estimated tax payments when you are required to do so or underpaying your estimated tax. The penalty is calculated separately for each quarter, so you may be penalized for underpaying in an earlier quarter even if you made up for it in a later quarter. The details about the penalties can be found in Publication 505.

State Quarterly Estimated Tax

Your state and/or local government may also require you to make estimated tax payments.

Set Up a System of Self-Withholding

If you are going to owe any income tax for the year and do not have automatic income tax withholding set up, you should intentionally prepare for your tax bill, whether or not that tax is due with your annual tax return or quarterly.

My recommendation is to set up a separate savings account labeled “Income Tax” or similar. With every paycheck you receive, transfer into your savings account the amount of money from it that you expect to pay in income tax. For example, if you receive monthly fellowship paychecks, you should set aside 1/12th of the amount you calculated in Line 11c (rounding up). When you pay tax quarterly or annually, draw the payment from that dedicated savings account.

For more details about how to set up this kind of system and save in advance for each of your tax deadlines, join my tax workshop.

Click here to learn more about the estimated tax workshop.

How to Avoid Paying Estimated Tax Using Your Spouse’s Withholding

If you are married filing jointly with one spouse receiving a fellowship not subject to withholding and one spouse subject to automatic withholding, it is possible to set up the withholding on the employee income so that you don’t have to pay quarterly estimated tax on the fellowship.

The idea is that you will increase the automatic withholding on the employee’s income so that it covers what you owe in tax for the year as a couple. This involves filing a new Form W-4 with your spouse’s employer.

The simplest way to make this change is to enter an additional amount of money on Form W-4 Line 4c to have withheld from each paycheck (Form 1040-ES Line 11c divided by the number of paychecks your spouse receives per year).