Tax year 2026Checked October 25, 2026

On H-1B with a spouse still on F-1: joint or separate tax returns?

Both 2026 paths side by side, an example where one joint return costs $5,282 less than two separate ones, and what your F-1 spouse gives up by choosing resident status.

$5,282 less 2026 federal tax on one joint return, in our example of $100,000 H-1B and $20,000 F-1 pay in Texas

By F1TaxReturn Tax Team. Published October 25, 2026. Facts checked against the sources below on October 25, 2026. 7 minute read.

In short

If you are on H-1B and a resident alien for all of 2026, and your spouse is an F-1 student in their five exempt years, you can file one joint 2026 Form 1040 only if your spouse chooses to be treated as a US resident for the whole year, or a choice you both made for an earlier year is still in effect.
Without that choice, you generally file Form 1040 as married filing separately, with a $16,100 standard deduction. Your spouse files Form 1040-NR with no standard deduction (unless they are a student from India and you do not itemize), or only Form 8843 if they had no US income.
In our Texas example, $100,000 of H-1B pay and $20,000 of campus pay cost $15,322 in 2026 federal income tax on separate returns and $10,040 on one joint return, which is $5,282 less.
The choice taxes both spouses on worldwide income, generally ends tax treaty benefits, carries into later years unless suspended or ended, and once it ends neither spouse can make it again.
The choice is for income tax: the IRS says your spouse may still be treated as a nonresident for Social Security and Medicare tax. A joint 2026 Form 1040 is due Thursday, April 15, 2027.

Contents, 8 sections

On H-1B with an F-1 spouse in their exempt years, you can file one joint 2026 Form 1040 only if your spouse chooses to be taxed as a US resident. Otherwise you file your own Form 1040, usually as married filing separately, and your spouse files Form 1040-NR, or only Form 8843 if they had no US income (Publication 519).

We assume you were a resident alien all of 2026 and made no such choice before 2026. Other cases have their own guides: an H-1B that started during 2026, a spouse abroad and a US citizen spouse.

Note

Publication 519 for 2026 is not yet published. The rules below come from the 2025 edition and the IRS pages linked.

Is my F-1 spouse a nonresident alien for 2026?

Your F-1 spouse is generally a nonresident alien for 2026 if 2026 is one of their five exempt calendar years as a student. Publication 519 says your spouse is a nonresident alien "if they have not been in the United States as a student for more than 5 years".

20231 of 5: exempt, days do not count
20242 of 5: exempt, days do not count
20253 of 5: exempt, days do not count
20264 of 5: exempt, days do not count
20275 of 5: exempt, days do not count
20286th: days count

2026 is your 4th exempt year: you are a nonresident alien.

File Form 8843, and Form 1040-NR as well if you had taxable US income. No Social Security or Medicare tax on campus, CPT or OPT pay.

The five exempt years of an F-1 student who first came to the US in 2023. Any part of a calendar year counts as a whole one, and years on F, J, M or Q visas before this one count toward the five (IRC 7701(b)(5)(E)).

Years on J or Q as a teacher, researcher or trainee count toward the five. A spouse in their sixth calendar year or later is usually a resident alien too, and you can then file jointly with no special choice (sixth-year guide).

Key facts

Joint return: One 2026 Form 1040, if your F-1 spouse chooses to be treated as a US resident for the whole year, or an earlier choice is still in effect
Separate returns: You: Form 1040, usually married filing separately. Your spouse: Form 1040-NR with Form 8843, or Form 8843 alone with no US income
2026 standard deduction: $32,200 joint; $16,100 on your separate return; none for your F-1 spouse unless from India and you do not itemize
Saving in our example: $5,282 on $100,000 of H-1B pay and $20,000 of F-1 pay in Texas
Due date: Thursday, April 15, 2027, for a joint return or your separate Form 1040

For: Married couples where one spouse is on H-1B and a resident alien for all of 2026, and the other is an F-1 student still in their five exempt calendar years.
Not for: Couples whose H-1B started during 2026, couples where both spouses are nonresidents, and F-1 spouses who are already resident aliens in their sixth calendar year or later.

Do we pay less tax on one joint return?

A joint 2026 Form 1040 often costs less: it has a $32,200 standard deduction and a 12% bracket that runs to $100,800 (Revenue Procedure 2025-32). In our example it costs $10,040 in federal income tax, against $15,322 on two separate returns, so $5,282 less.

Worked example: Amani on H-1B and Jelani on F-1, in Texas

Amani and Jelani are an illustrative married couple from Kenya, which is not on the IRS list of treaty countries. Amani, on H-1B, was a resident alien for all of 2026 and earned $100,000 in Texas. Jelani, an F-1 student who arrived in August 2023, earned $20,000 from a campus job. Neither has income from abroad.

	Two separate returns	One joint return
Forms	Amani: Form 1040. Jelani: Form 1040-NR and Form 8843	One Form 1040
Standard deduction	$16,100 + $0	$32,200
Taxable income	$83,900 + $20,000	$87,800
Federal income tax	$13,170 + $2,152 = $15,322	$10,040

Amani: $100,000 minus $16,100 = $83,900, taxed $5,800 on the first $50,400 plus $7,370 (22% of the other $33,500) = $13,170. Jelani: $1,240 on the first $12,400 plus $912 (12% of the other $7,600) = $2,152. Joint: $120,000 minus $32,200 = $87,800, taxed $2,480 on the first $24,800 plus $7,560 (12% of the other $63,000) = $10,040. The IRS Tax Table can differ by a few dollars.

On a separate Form 1040-NR, Jelani has no standard deduction, so all $20,000 is taxed (IRS).

Wages for the year$20,000

Tax treaty

Federal income tax: $2,152
Texas income tax: $0
Left after these taxes: $17,848

Social Security and Medicare: $0. A US worker earning the same would pay $1,530.

What Jelani, an F-1 student since 2023, pays on $20,000 of campus pay in Texas on a separate Form 1040-NR. From the Texas tax calculator: 2026 federal brackets for a nonresident alien, first in the US in 2023. No state income tax on wages.

The visual is our 2026 estimate for a single filer; at this income the married-filing-separately brackets are the same. A student from India can take the $16,100 standard deduction on Form 1040-NR (choose India above), but not if you itemize on your separate return (Publication 519). Here, $20,000 minus $16,100 leaves $3,900, taxed at 10% = $390. Separate returns total $13,170 + $390 = $13,560, still $3,520 more than joint.

If your spouse itemizes deductions on a separate return, you cannot take the standard deduction on yours. A separate Form 1040 also allows no education credits or student loan interest deduction (Form 1040 instructions).

What does my F-1 spouse give up by choosing resident status?

Under the choice, both of you are taxed on worldwide income, and neither of you can generally claim a tax treaty benefit as a resident of another country (IRS).

What the joint choice changes, and what it leaves alone
	Under the choice
Tax treaties	Benefits generally lost; a treaty's exception to the saving clause might keep one on certain income
Worldwide income	Both of you report it for 2026 and later years, jointly or separately, until the choice is suspended or ended
Social Security and Medicare	Your spouse may still be treated as a nonresident for these taxes
FBAR	The choice alone does not make your spouse a US person for the FBAR (IRM 4.26.16; FBAR guide)

Either spouse can revoke the choice for a tax year by that year's return due date. Once the choice ends, neither of you can make it again, even with a different spouse.

When could separate returns cost less?

Separate returns can cost less when your F-1 spouse has income from abroad, or a treaty benefit, that the choice would bring into US tax.

Under the choice, their interest, rent or salary from home is taxed too, not only their US income. A lost treaty exemption can also cost more than the joint return saves.

On a joint return, each of you is generally responsible for the whole tax. After the due date, you cannot switch to separate returns for that year (Form 1040 instructions).

How do we file each way?

A joint return is one Form 1040 that you both sign, with a statement that makes the choice. Separate returns are your Form 1040 and your spouse's Form 1040-NR, or their Form 8843 alone if they had no US income.

If you both made the choice for an earlier year and it has not ended, it still applies to 2026. Filing jointly, you check the box again but attach no new statement (Publication 519). Filing separately, your spouse still reports worldwide income as a US resident, not on Form 1040-NR.

Joint: on the 2026 draft Form 1040, check the box for "treating a nonresident alien or dual-status alien spouse as a U.S. resident for the entire tax year" and enter your spouse's name. The draft can change.
Attach a statement signed by both of you. It declares that on December 31, 2026 one of you was a US resident and the other was not, and that you choose to be treated as US residents for all of 2026. It gives each spouse's name, address and SSN or ITIN.
Your spouse needs an SSN or an ITIN. If they cannot get an SSN, they apply for an ITIN on Form W-7, box e, attached to the front of the joint return; leave their SSN blank. Include their passport, the original or a copy certified by the issuing agency. By mail, send the return, statement, Form W-7 and passport together to Internal Revenue Service, ITIN Operation, P.O. Box 149342, Austin, TX 78714-9342 (W-7 instructions; ITIN guide).
Separate: you file Form 1040 as married filing separately, with your spouse's name and SSN or ITIN. The 2025 Form 1040 instructions allow "NRA" if your spouse has neither and needs neither. The IRS nonresident spouse page says they need one, so ask a preparer first (Form 1040 instructions; IRS). Your spouse files Form 1040-NR as married filing separately, with Form 8843 attached.

What to do next

Check that 2026 is one of your spouse's five exempt years, and that you were a resident alien for all of 2026.
List any income your spouse has from abroad and any treaty benefit they claim.
Ask a preparer who works with nonresident spouses to compare both ways for 2026 and later years. F1TaxReturn prepares neither Form 1040 nor a married filer's Form 1040-NR. Once the final 2026 forms are published, it can prepare a Form 8843 your spouse files alone.
Joint: sign the statement together, attach it to Form 1040, and file by Thursday, April 15, 2027. With a Form W-7, mail it all to the IRS ITIN Operation in Austin.
Separate: file your Form 1040 by Thursday, April 15, 2027. Your spouse's Form 1040-NR is due the same day if they had wages subject to withholding, or Tuesday, June 15, 2027 if not. A Form 8843 filed alone is also due June 15, 2027 (2027 deadlines).

Questions students ask

My F-1 spouse has no income. Is a joint return still worth comparing?

Yes, and in our example it saves even more. With a joint return, your $100,000 of H-1B pay gets the $32,200 deduction: $67,800 taxable and $7,640 of tax, against $13,170 on a separate return. On separate returns, your spouse would file only Form 8843. A spouse who is not eligible for an SSN applies for an ITIN on Form W-7, box e, attached to the front of the joint return and mailed with it to the IRS ITIN Operation in Austin.

Can I file as head of household instead?

Only if you have another qualifying person, such as a child, and meet the other tests. Publication 501 counts you as unmarried for this status when your spouse is a nonresident and you do not make the choice, but your spouse is not a qualifying person. You must also be a resident alien for all of 2026; the 2026 head of household standard deduction is $24,150.

Does the joint choice end my spouse's FICA exemption?

The IRS says a nonresident spouse who makes the choice may still be treated as a nonresident for Social Security and Medicare tax withholding. So the F-1 exemption on campus, CPT or OPT pay can continue during the exempt years.

We filed separate returns for 2025. Can we still choose to file jointly?

Generally yes, if on December 31, 2025 one of you was a US resident and the other was not; two nonresident spouses cannot make the choice. You file a joint amended return on Form 1040-X within 3 years from the date you filed the original return or 2 years from the date you paid the tax, whichever is later. If you do, you must also amend any returns you filed for later years.

Do we need to file an FBAR?

The joint choice alone does not make your F-1 spouse a US person for the FBAR, according to the IRS manual. As a resident alien you are a US person, so you file an FBAR if your foreign accounts together were worth more than $10,000 at any time in 2026. Form 8938 is a separate IRS form with its own limits, filed with your tax return, so ask your preparer whether either of you also files it.

Sources

This guide is checked against these 10 documents, most recently on October 25, 2026.