Tax

Substantial Presence Test: When a Visa Holder Becomes a U.S. Tax Resident

The 31-day and 183-weighted-day test that makes an H-1B, L-1, or other visa holder a U.S. tax resident, the exempt-day rules for students, dual-status first and last years, the first-year choice, and ITINs for a spouse or parents.

By Girija Srinivasan, CA4 min · 5 slidesUpdated November 8, 2026

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The Test Itself

You are a resident alien for tax purposes if you were present in the U.S. at least 31 days in the current year AND at least 183 weighted days over three years.
Weighting: every day this year counts as one, each day last year counts as one-third, and each day in the year before that counts as one-sixth.
Example: 120 days in each of three years is 120 + 40 + 20 = 180, which is under 183, so not a resident. 125 days in each year is 187.5 and tips over.
A green card holder is a resident from the day the card is issued regardless of days; the test matters for everyone on a nonimmigrant visa.
Residency for tax is separate from immigration status: you can be a tax resident on an H-1B and a nonresident for immigration purposes at the same time.

Days That Do Not Count

Students on F, J, M, or Q visas are exempt individuals for the first five calendar years; their days do not count at all, so most students are nonresidents filing Form 1040-NR and Form 8843.
Teachers, trainees, and researchers on J or Q visas are exempt for two of the last six calendar years.
Days you could not leave because of a medical condition that arose in the U.S., and days in transit under 24 hours, are excluded.
Commuting days from Canada or Mexico and days as a crew member of a foreign vessel are excluded.
Exempt years still require Form 8843 to claim the exclusion; skipping it is a common reason the IRS treats a student as resident.

The Closer Connection Exception

If you meet the test but were present fewer than 183 days in the current year, you can still be treated as a nonresident by showing a tax home in another country and a closer connection to it, on Form 8840.
Factors: where your permanent home, family, belongings, bank accounts, driver's license, and voter registration are.
Not available if you applied for a green card during the year or have an application pending.
A treaty tie-breaker can also resolve dual residency where both countries claim you, disclosed on Form 8833.
Both are elections to be made deliberately with a filing, not assumptions.

Arrival Year, Departure Year, Dual Status

In the year you arrive and first meet the test, residency generally starts on your first day of presence, so you are a nonresident before that date and a resident after: a dual-status year.
Dual-status returns cannot use the standard deduction or file jointly, which is why the first-year choice and the section 6013(g) or (h) election to be treated as a full-year resident with a nonresident spouse often produce a better result.
As a full-year resident you report worldwide income for the whole year, including income earned at home before the move, so the election is a calculation, not a default.
Departure year: residency ends on the last day of presence if you establish a closer connection abroad afterward; otherwise it runs to December 31, which can pull a full year of foreign income into the U.S. return.
Form 1040-C or a sailing permit is technically required of some departing aliens; in practice the final return is where the work is done.

Spouses, Parents, ITINs, and What Happens Next

A spouse on H-4 with no SSN needs an ITIN (Form W-7) to be included on a joint return; parents visiting on a tourist visa can be claimed only if they themselves meet the substantial presence test for the year.
The day you become a resident, the whole cross-border reporting stack switches on: FBAR, Form 8938, Form 8621 for foreign mutual funds, Form 3520 for gifts, and Form 5471 for a family company.
Foreign income earned before the residency start date is not U.S.-taxable in a dual-status year, which is often a reason not to elect full-year treatment.
Keep an entry and exit log; the test is day-based and the IRS can ask for passport stamps and I-94 history.
Need help? Rubric Financial runs the residency analysis and files whichever return produces the right result, as part of a cross-border tax engagement.

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Educational content, not tax, legal, or accounting advice. Confirm with a CPA before acting.

Frequently asked questions

I arrived on an H-1B in October. Am I a U.S. tax resident this year?

Probably not under the substantial presence test alone, since about 90 days falls short of 183 weighted days unless you had substantial U.S. presence in the two prior years. You would normally file Form 1040-NR for the arrival year. The first-year choice can make you a resident from your arrival date if you will meet the test next year, and a joint-return election with a nonresident spouse can treat you both as residents for the whole year. We model each option.

Do my years as an F-1 student count toward the substantial presence test?

Not for the first five calendar years on the student visa, provided you filed Form 8843 to claim exempt-individual status. Days in year six onward count in full. Many people who switch from F-1 to H-1B become residents partway through the first H-1B year, which creates a dual-status return.

What is a dual-status tax year?

A year in which you were a nonresident for part of the year and a resident for the rest, typically the year you arrive or the year you leave. You file a resident return with a nonresident statement attached, report worldwide income only for the resident portion, and lose the standard deduction and joint filing. Elections exist to be treated as a full-year resident instead, which can be better or worse depending on your foreign income that year.

Can I claim my parents as dependents if they visited for six months?

Only if they meet the substantial presence test themselves for the year, which a six-month visit alone usually does, and they meet the other dependent tests on support and income. They would need ITINs. Many families find the credit available for a non-child dependent is modest relative to the paperwork, so run the numbers before applying.

Does becoming a tax resident change what I report about accounts back home?

Yes, completely. From the residency start date you report worldwide income and the full set of foreign information returns applies: FBAR for accounts over $10,000 in aggregate, Form 8938 above its thresholds, Form 8621 for foreign mutual funds, Form 3520 for large gifts from abroad, and Form 5471 if you own part of a company abroad. The arrival year is the moment to inventory everything.

Accounting

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Substantial Presence Test: When a Visa Holder Becomes a U.S. Tax Resident

The Test Itself

Days That Do Not Count

The Closer Connection Exception

Arrival Year, Departure Year, Dual Status

Spouses, Parents, ITINs, and What Happens Next

Frequently asked questions

I arrived on an H-1B in October. Am I a U.S. tax resident this year?

Do my years as an F-1 student count toward the substantial presence test?

What is a dual-status tax year?

Can I claim my parents as dependents if they visited for six months?

Does becoming a tax resident change what I report about accounts back home?

Accrual Accounting: When to Switch From Cash Basis

When Does a Small Business Need a Fractional CFO?

Month-End Close Checklist for Small Businesses

Want a CPA to own your filings?

Substantial Presence Test: When a Visa Holder Becomes a U.S. Tax Resident

The Test Itself

Frequently asked questions

I arrived on an H-1B in October. Am I a U.S. tax resident this year?

Do my years as an F-1 student count toward the substantial presence test?

What is a dual-status tax year?

Can I claim my parents as dependents if they visited for six months?

Does becoming a tax resident change what I report about accounts back home?

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Accrual Accounting: When to Switch From Cash Basis

When Does a Small Business Need a Fractional CFO?

Month-End Close Checklist for Small Businesses

Want a CPA to own your filings?