J-1 researcher and scholar taxes for 2026: the two-year rule and treaties

How many years is a J-1 researcher exempt?

A J-1 researcher is usually exempt for 2 calendar years. Line 8 of the 2026 draft Form 8843 asks whether you were exempt in any part of 2 of the 6 prior calendar years, 2020 to 2025. If the answer is Yes, you generally cannot leave your 2026 days out.

Years in any exempt status count: teacher, trainee or student. The rule comes from IRC 7701(b)(5)(E)(i). Any part of a calendar year counts as a whole year. A researcher who arrived on December 15, 2025 used up 2025 as year 1 and has only 2026 left.

This table assumes you had no earlier student years and were in the US as a J-1 scholar in every year since you arrived.

Line 8 looks back only at 2020 to 2025, so exempt years before 2020 do not count. If your 2 exempt years were 2019 and 2020, only one falls in that window, and your 2026 days can be left out again.

As a scholar, only your days in J or Q status are exempt under this rule. Days in another status, such as H-1B or visitor status, count, even inside your first 2 years.

Is there an exception to the 2-of-6 rule?

Yes, Form 8843 has a foreign-employer exception, and it rarely fits. You can still leave your 2026 days out only if all four of these apply:

1. You were exempt in no more than 3 of the 6 prior years.
2. A foreign employer paid all your 2026 pay.
3. You were in the US as a teacher or trainee in some of those prior years.
4. A foreign employer paid all your pay in each of those years.

You must attach proof of the foreign employer's payments. A researcher paid by a US university does not meet the exception.

How do I fill in Form 8843 Part II?

J-1 and Q-1 scholars complete Parts I and II of Form 8843, while students complete Parts I and III. Part II has four lines on the 2026 draft form.

Q visa holders complete only lines 6 to 8 of Part II. The Form 8843 guide goes through Part I line by line.

I was an F-1 student before my J-1. Do I get two more years?

Usually not: F-1 student years count toward a J-1 researcher's 2-year limit, because line 8 of Form 8843 counts years in which you were exempt as a student too.

Someone on F-1 from 2021 to 2025 who starts as a J-1 researcher in January 2026 was exempt in five of the six prior years. Their 2026 days count from the first day, and 183 days in 2026 make them a resident alien. The foreign-employer exception cannot help in this example, because it needs 3 or fewer exempt years out of the 6.

The count works the other way too. Years as a J-1 researcher use up some of the 5 years a later student visa would give, as the substantial presence test guide explains.

When does a J-1 researcher become a resident alien?

You become a resident alien in the first year your days count and you meet the substantial presence test. If all your earlier days were exempt, that means at least 183 days in the US in that year itself.

Your residency normally starts on the first day you were in the US that year (IRS: residency starting and ending dates). Someone here every day of 2026 reaches 183 days on July 2, 2026, but is a resident from January 1. If you were abroad on January 1 and came back on January 10, you are a resident from January 10. That splits the year into a nonresident part and a resident part, called a dual-status year.

If you leave the US for good before you reach 183 days in your third year, you stay a nonresident for that year. A J-1 visa does not make you a nonresident for tax by itself.

As a resident alien for all of 2026:

• You file Form 1040 instead of Form 1040-NR, and you do not file Form 8843.
• You are taxed on your worldwide income, including interest or rent abroad.
• You can take the $16,100 standard deduction for a single filer, which nonresidents generally cannot.
• Social Security and Medicare tax applies to your pay.
• Most treaty benefits stop.

The sixth-year guide explains what changes on a resident return. It is written for students, but those resident rules are the same for scholars.

Do J-1 researchers pay Social Security and Medicare tax?

J-1 researchers pay no Social Security or Medicare tax while they are nonresident aliens. The IRS says J-1 professors, teachers, researchers and trainees are exempt on pay for work that serves the purpose of their J-1 (IRS).

The exemption ends when you become a resident alien, which for most researchers is the third calendar year. From then on you pay 6.2% Social Security tax on wages up to $184,500 for 2026 (SSA) and 1.45% Medicare tax on all wages. The separate exception for students who work at their own school does not help a postdoc, because a postdoc is not an enrolled student.

Three limits apply even while you are a nonresident:

• The exemption does not cover work that USCIS has not authorized, or work not closely connected to the purpose of your visa (IRS).
• A J-2 spouse who works is not covered. The F-2 and J-2 guide explains what J-2 family members file.
• An income tax treaty generally does not remove these taxes, even when it exempts your pay from income tax.

After you become a resident, a social security (totalization) agreement between the US and your home country may still remove US Social Security tax. You give your employer a certificate of coverage from your home country's social security agency. The Social Security Administration keeps the list of agreement countries.

If the tax was taken while you were still a nonresident, ask your employer for a refund first. If it will not refund all of it, claim it from the IRS on Form 843 with Form 8316 (Form 843 instructions). The FICA refund guide shows how.

Which tax treaty article covers a J-1 researcher?

A J-1 researcher or professor usually looks to the teacher and researcher article of their country's treaty, if it has one. Most of these articles have a two-year limit, with some exceptions: the teaching table in Publication 4011 lists 2 years for most countries.

Under many treaties, a professor in the US mainly to teach at a university can be exempt from US income tax on that pay for a limited time (Publication 519). Many treaties also cover research. Some leave out research done mainly for the private benefit of a person, and China's Article 19 is one of them.

These are the limits we confirmed in IRS sources:

For any other country, read your treaty's entry in Publication 901 and the treaty text before you claim it. A student article helps a researcher only where its own terms cover research. China's $5,000 Article 20 benefit is for students and trainees (China treaty guide), and India's Article 21(2) standard deduction covers students and business apprentices only. The treaty guide lists the student articles by country.

Many student articles do cover someone here to study or do research on a grant, South Korea's among them (Publication 901). The treaties with Cyprus, Estonia, Iceland, Latvia, Lithuania, Malta, Morocco, Spain and Tunisia have no separate teacher or researcher article. The teaching table in Publication 4011 lists none of them. Except for Malta's and Tunisia's, their student articles cover research on a grant, and each country guide explains its rules.

Can I lose a teacher treaty exemption by staying longer than two years?

Yes, under the India, Luxembourg, Netherlands and UK teacher articles: staying longer than 2 years can cost you the exemption for the first 2 years too.

Publication 901 says so for each of the four, adding for Luxembourg and the Netherlands "unless the competent authorities agree otherwise". Publication 4011 marks their teaching rows as benefits that can be lost retroactively.

China's article works differently. Under the US-China competent authority agreement, a scholar who stays longer can be taxed from the first day of the fourth year, and the first 3 years keep their exemption.

Residency does not always end a teacher article. Most treaty benefits stop when you become a resident alien, which for most researchers is the third calendar year. But many treaties except the teacher article from the saving clause for a resident who is not a US citizen and has no green card (IRS).

China's Article 19 continues for any resident who otherwise qualifies, within its 3 years (Technical Explanation). Each article's own time limit still applies. If you expect to stay longer than 2 years, get advice from a tax professional before you claim a teacher article.

How do I claim a teacher or researcher treaty exemption?

Give your employer Form 8233 for the treaty-exempt pay, then report the exemption on your Form 1040-NR through Schedule OI and line 1k. The IRS says teachers and researchers who are paid as employees can use Form 8233 (IRS: claiming tax treaty benefits).

1. Give your payroll office a new Form 8233 for each tax year, as the Form 8233 instructions require.
2. Your employer may report the exempt pay on Form 1042-S, where the income code for teaching is 19 (2026 Form 1042-S instructions). Your employer must send it by Monday, March 15, 2027.
3. On the return, list the treaty in Schedule OI, item L (2025 Schedule OI; the 2026 version is not yet published). Item L asks for the country and article, the months you claimed it in earlier years, and this year's exempt amount.
4. Enter the total on line 1k of the 2026 Form 1040-NR. Do not include the same pay in line 1a.
5. You generally do not attach Form 8833. The IRS lists treaty claims on teachers' income among those that do not need it.

If your employer did not apply the treaty, you can still claim it on your return and get the extra tax back. Attach a statement with the information Form 8233 would have given (2025 Form 1040-NR instructions). The treaty claim guide shows a filled-in item L.

A federal treaty exemption does not always carry over to state tax. California taxes treaty-exempt wages (FTB), and its Publication 1031 uses a visiting researcher from China as its example.

Is a research fellowship or grant taxable for a J-1 scholar?

A J-1 scholar's research fellowship or grant is usually taxable in full. If you are not a candidate for a degree, your whole grant is taxable, including any part spent on tuition (Publication 519).

How the money reaches you decides how it is taxed:

Broadly, a non-degree grant gets 14% when it is for study or research at a US educational institution (IRC 1441(b)). It must also come from a payer such as a tax-exempt organization or a government (IRS). Withholding is only a prepayment. On the 2026 draft Form 1040-NR, a taxable grant goes on Schedule 1 line 8r and then line 8, and the tax withheld goes on line 25g.

A scholar whose only US income is a fellowship, with no wages, has until Tuesday, June 15, 2027 to file. The scholarship guide and the Form 1042-S guide explain both forms.

What does a J-1 researcher file for tax year 2026?

A J-1 researcher who is still exempt in 2026 files Form 1040-NR with Form 8843 attached, or Form 8843 alone if there is no US income to report. One whose days count and who meets the test files Form 1040 as a resident alien.

The Form 1040-NR guide walks through the return, and the mailing guide has the addresses.

F1TaxReturn is built for students. It does not apply the 2-year rule for scholars, its treaty list has student articles only, and it does not take Form 1042-S. So we do not recommend it for J-1 researchers; ask your international scholar office what tax help it offers.

What to do next

1. List every calendar year you spent in the US in an exempt status, counting any part of a year. If you were exempt in fewer than 2 of the years 2020 to 2025, your 2026 days are still exempt.
2. If you are still exempt, complete Form 8843 Parts I and II. Attach it to Form 1040-NR, due Thursday, April 15, 2027 if you had wages or Tuesday, June 15, 2027 if you did not. With no US income to report, mail it alone to Austin by Tuesday, June 15, 2027.
3. If your 2026 days count, count them. With 183 days in 2026, you are a resident alien. If you were in the US on January 1, file Form 1040 by Thursday, April 15, 2027; if you arrived later in the year, 2026 is a dual-status year.
4. Check that your payroll office knows every earlier year you spent in the US as a student, teacher or trainee, because those years decide when Social Security and Medicare tax starts.
5. Before you claim a teacher or researcher article, read your country's entry in Publication 901 and compare its time limit with the length of your appointment.
6. If you expect a Form 1042-S for a fellowship or treaty-exempt pay, wait for it before you file. Your school or other payer must send it by Monday, March 15, 2027.