1040 vs 1040-NR: Which Return F-1, OPT, H-1B and H-4 Filers Use for Tax Year 2026

Your visa does not pick your tax form. Your arrival year and your days in the US in 2026 do, and the wrong pick changes your deduction, your credits and your refund.

Part of our guide to the H-4 EAD.

1040 vs 1040-NR comes down to one question: were you a resident alien for tax purposes in 2026? Your visa does not decide that; the IRS substantial presence test does. As of November 1, 2026, those rules are in effect and unchanged. F-1 and J-1 students (including F-1s on OPT or STEM OPT) whose first year in F, J, M or Q status was 2022 or later are nonresidents for tax year 2026 and file Form 1040-NR plus Form 8843. H-1B and H-4 holders get no exemption, so most who spent 183 or more days here in 2026 file Form 1040. Arrive or switch status mid-year and you may file a dual-status return that uses both.

Status line, as of 2026-11-01. The 2026 Forms 1040 and 1040-NR exist only as drafts (posted 2026-09-17). A 2026 Form 1040-NR is due April 15, 2027 if you had wages subject to US income tax withholding, otherwise June 15, 2027 (our arithmetic; the 2026 instructions are not posted). A refundable-credit limit for H-1B, H-4 and F-1 filers is only proposed.

1040 vs 1040-NR: the short answer

Form 1040 is the return for US citizens and resident aliens: you report worldwide income and can use the standard deduction, joint filing and most credits. Form 1040-NR is for nonresident aliens: you report mainly US-source income, cannot file jointly and generally get no standard deduction. Your 2026 residency, set by the substantial presence test, picks the form.

How the IRS decides whether you are a resident alien in 2026

The IRS substantial presence test page sets two thresholds: at least 31 days in 2026, and at least 183 days when you add all your 2026 days, one-third of your 2025 days and one-sixth of your 2024 days. Any part of a day in the US counts as a day.

For students, the key line on that page is "Do not count days for which you are an exempt individual." F, J, M and Q students who substantially comply with their visa terms are exempt individuals. H-1B, H-4, L-1, O-1 and TN holders are not, so their days count from the first one.

The 5-calendar-year rule for F-1 and J-1 students

IRS Publication 519 says you stop being an exempt student once you have been exempt as a teacher, trainee or student "for any part of more than 5 calendar years." Two details matter:

• Calendar years, not 12-month periods. A December 20, 2022 arrival uses up 2022 as a full exempt year.
• The 2026 example. A student first present in 2022 uses 2022 through 2026 as exempt years, so that student is still a nonresident for tax year 2026.

Past 5 years, Pub 519 keeps you exempt only if you show you do not intend to reside permanently and have substantially complied with your visa, a fact-specific test for a tax professional. You claim exempt days on Form 8843 each year; the SPT page warns that filing it late can generally cost you the exclusion. See who must file Form 8843.

The decision table: which form you file for tax year 2026

Decision table for tax year 2026, as of 2026-11. Day counts assume continuous presence and no earlier US days; trips abroad reduce them.

Leaving the US for good during 2026 after being a resident flips the dual-status return: Form 1040-NR is the return and Form 1040 the statement. Under 183 days in 2026 but passing on weighted 2024 and 2025 days? Ask a tax professional about Pub 519's closer connection exception.

Is an H-1B worker a resident or nonresident alien for tax?

Usually a resident, but not automatically. Every H-1B day counts, so a full-year worker files Form 1040, while a first-year arrival or mid-year switcher can be a nonresident or dual-status for 2026.

Payroll changes separately. The student FICA exemption does not apply once you become a resident alien or change to a non-exempt status such as H-1B, so Social Security and Medicare come out of your first H-1B paycheck whichever form you file. See how H-1B status affects your taxes for the rest of that switch.

Are F-1 students resident aliens after 5 years?

They can become residents in their sixth calendar year. Earlier exempt days never count, so only that year's days matter, and 183 of them generally make you a resident unless the intent exception applies.

Your OPT paycheck can change that year too: the IRS foreign student FICA page says the exemption does not apply to students who become resident aliens. On our reading of Pub 519, a 2022 arrival still on OPT who reaches 183 days in 2027 becomes a resident and owes FICA; see when F-1 students start paying FICA.

Which form does an H-4 spouse file?

Whichever form the spouse's own day count produces, since H-4 days always count. A spouse short of 183 days can still join a joint return by one of two elections:

• Nonresident spouse treated as a resident. If one spouse is a resident or citizen at year-end and the other is not, the IRS nonresident spouse page lets you treat the nonresident as a resident for the whole year. Both spouses sign a statement on a joint return and report worldwide income; if the choice ends, neither can make it again, because "it is a once-in-a-lifetime choice."
• Dual-status year choice. If you were a nonresident at the start of 2026, a resident at the end, and married to a resident at year-end, Pub 519 lets you and your spouse choose resident treatment for all of 2026 and file jointly.

A spouse with no SSN and no eligibility for one needs an ITIN for a joint return; the IRS ITIN page says to allow 7 weeks (9 to 11 in tax season or from overseas). See H-4 spouse taxes, joint returns and the ITIN.

What is a dual-status return?

One tax year split in two: nonresident for part of 2026, resident for the rest. The IRS page on taxation of dual-status individuals says a filer who is a resident on December 31 writes "Dual-Status Return" across the top of Form 1040 and can attach Form 1040-NR, marked "Dual-Status Statement," for the nonresident part. It adds, "You cannot use the standard deduction allowed on Form 1040," and bars joint filing (absent the election) and head of household rates. Our walkthrough of filing a dual-status return in your first US year has the line-by-line mechanics.

Worked example: four filers, four outcomes for tax year 2026

Illustrations, not advice for your facts; each person stays in the US continuously after the dates shown.

Rahul and Meera show the trade-off. Filing dual-status, neither gets a standard deduction. The joint election brings the $32,200 deduction but puts all their 2026 worldwide income on the return, including interest or rent earned at home before the move. Which wins depends on their numbers, a question for a tax professional.

Difference between 1040 and 1040-NR: what a resident return changes

Form 1040 vs Form 1040-NR for tax year 2026, as of 2026-11. Amounts from Rev. Proc. 2025-32.

Sources for those rows: the Form 1040-NR instructions ("A nonresident alien filing Form 1040-NR cannot have a Married filing jointly or a Head of household filing status"; the child tax credit goes mainly to residents of Canada and Mexico), the Form 8863 instructions, the EITC page ("a U.S. citizen or resident alien all year"), Publication 901 for India (no $5,000 student wage exemption) and the IRS FBAR page.

Resident filing is not automatically better: you gain deductions and credits but also report home-country salary, interest, rent and gains. Some treaty benefits carry over; Pub 519's own example is a Chinese student who arrived in 2021, became a resident on January 1, 2026, and keeps the Article 20 scholarship exemption.

What is new or pending for 2026 returns

Status as of 2026-11-01:

• Work-authorization question: DRAFT FORM. The draft 2026 Form 1040-NR and Form 1040 ask whether, when you file, you are "a U.S. citizen, U.S. national, or an alien lawfully authorized to work in the U.S." (the 1040 also asks about a joint-filing spouse). With no instructions, its use is unknown.
• Refundable credits: PROPOSED. A proposed rule (91 FR 53812, 2026-08-20) would bar the refunded part of the EITC, child tax credit and American opportunity credit for people who are not "qualified aliens," which H-1B, H-4 and F-1 holders are not; a joint return would need one qualifying spouse. Comments closed 2026-10-05; there is no final rule, and it would reach only tax years ending on or after one.
• Marketplace premium tax credit: SCHEDULED for 2027; regulations PROPOSED. By statute the credit is zero for lawfully present people who are not "eligible aliens" for tax years after 2026-12-31, so 2026 returns are unaffected; proposed regulations take comments to 2026-11-30.

How to work out your form, step by step

1. Download your I-94 travel history from CBP's website and list your US days in 2024, 2025 and 2026.
2. Mark each calendar year you held F, J, M or Q status, from your I-20 or DS-2019 history.
3. Apply the substantial presence formula to your non-exempt days.
4. Find any 2026 residency start or end date; one means a dual-status year.
5. Ask a tax professional who handles nonresident returns whether an election or the first-year choice fits your household.
6. Prepare Form 8843 for every exempt individual in the household, including F-2 and J-2 family with no income.
7. Choose software or a preparer that supports Form 1040-NR and dual-status returns.
8. Calendar the deadline: April 15, 2027 for Form 1040 or a 1040-NR with withheld wages; June 15, 2027 for a 1040-NR without them (our arithmetic).

For the return itself, our Form 1040-NR walkthrough for F-1 and OPT students picks up where this decision ends.

Common mistakes

• Letting the software decide. Software built around Form 1040 may never ask about visa status, so a nonresident can claim deductions and credits they are not entitled to. Pub 519 says to fix a wrong form with Form 1040-X, attaching the correct return.
• Reading the visa as the answer. "I'm on H-1B, so I'm a resident" fails many first-year workers; "I'm on F-1, so I'm a nonresident" fails past 5 calendar years.
• Taking a standard deduction on a dual-status return without the full-year election, or on a 1040-NR without the India treaty exception.
• Skipping Form 8843 in a no-income year, or for an F-2 or J-2 family member.
• Missing the FICA switch when residency arrives while you are still on OPT.
• Forgetting FBAR once you are a resident with more than $10,000 across foreign accounts.

Frequently asked questions

Is an H-1B worker a resident or nonresident alien for tax?

It depends on days, not the visa. Every H-1B day counts toward the substantial presence test, so a full-year 2026 worker is generally a resident filing Form 1040, while a 2026 arrival or a mid-year switcher to H-1B may file Form 1040-NR or a dual-status return.

Are F-1 students resident aliens after 5 years?

They can be. Students are exempt for up to 5 calendar years, any part of a year counting as a whole one, so a student first present in 2022 files Form 1040-NR for 2026. In the sixth calendar year the days count, and 183 of them generally make the student a resident unless the Pub 519 intent exception applies.

Which form does an H-4 spouse file?

Whichever form the spouse's own day count produces, because H-4 days count. With 183 or more days in 2026 the spouse is usually a resident and can file a joint Form 1040. With fewer, the couple can still elect to file jointly if the H-1B spouse is a resident at year-end, which taxes both on worldwide income.

What is a dual-status return?

It is the return for a year split between nonresident and resident, such as an H-1B worker's 2026 arrival year. A filer who is a resident on December 31 files Form 1040 marked "Dual-Status Return" with a 1040-NR statement, with no standard deduction and no joint filing unless the couple elects full-year resident treatment.

What can I claim on a 1040 that I cannot on a 1040-NR?

A full-year resident can take the 2026 standard deduction ($16,100 single, $32,200 married filing jointly), file jointly, and claim the earned income or education credits if eligible. A 1040-NR filer generally cannot, though students and business apprentices from India get the standard deduction. The cost is US tax on worldwide income.

Who to ask

Tax residency is an IRS question, not a USCIS one. Take the return to a tax professional who prepares nonresident and dual-status returns. Ask your DSO about your I-20 history and anything touching your F-1, OPT or SEVIS record, and a licensed immigration attorney about status questions such as the timing of a change to H-1B. Your own I-94, I-20 and travel history govern over any example here.

Sources

• IRS Publication 519, U.S. Tax Guide for Aliens
• IRS, Substantial presence test
• IRS, Taxation of dual-status individuals
• IRS, Nonresident spouse
• IRS, Instructions for Form 1040-NR
• IRS, Instructions for Form 8863
• IRS, Who qualifies for the EITC
• IRS, Rev. Proc. 2025-32
• IRS Publication 901, U.S. Tax Treaties
• IRS, Foreign student liability for Social Security and Medicare taxes
• IRS, Form 8843
• IRS, Individual Taxpayer Identification Number
• IRS, FBAR
• IRS, Draft 2026 Form 1040-NR and draft 2026 Form 1040
• PRWORA refundable-credit proposed rule, 91 FR 53812 (govinfo)
• Premium tax credit proposed regulations, 91 FR 65494 (Federal Register)

How we checked this: on 2026-11-01 we read IRS Publication 519 (2025 edition), Publication 901, the 2025 Form 1040-NR and Form 8863 instructions, the IRS residency, dual-status, nonresident-spouse, EITC, ITIN, student FICA and FBAR pages, Rev. Proc. 2025-32, the draft 2026 forms and the two proposed rules. The 2026 instructions are not yet posted, so the 2027 due dates are our arithmetic.

This is general information, not legal or tax advice; your own documents govern, and a tax professional who handles nonresident returns should confirm your residency before you file.

Getting the tax form right is one piece of keeping your status in order across OPT, STEM OPT and H-1B. If you are working toward a sponsored role, F1Jobs helps international candidates run a focused search for employers that sponsor.