Tax Returns for Non-Residents
Understanding U.S. tax filing requirements for foreign nationals — which status applies to you and what forms you need to file.
The Three Filing Statuses for Non-Citizens
For tax purposes, the U.S. categorizes foreign nationals into one of these statuses based on residency, not citizenship.
Full-Year Resident Alien
- •Definition: Someone who meets either the Green Card Test or the Substantial Presence Test for the entire calendar year.
- •Income Taxed: Worldwide income, same as a U.S. citizen.
- •Form to File: Form 1040 (same as citizens).
Nonresident Alien (NR)
- •Definition: Someone who is not a U.S. citizen and does not pass the Green Card Test or the Substantial Presence Test.
- •Income Taxed: U.S.-sourced income only (plus any income effectively connected to a U.S. trade or business).
- •Form to File: Form 1040-NR (the "NR" stands for Nonresident).
Dual-Status Alien
- •Definition: Someone who is both a resident and a nonresident in the same tax year. This almost always happens in the year of arrival or the year of departure from the U.S.
- •Income Taxed: Worldwide income during the resident period; U.S.-sourced income only during the nonresident period.
- •Form to File: "Dual-Status Return" (Form 1040 with an attached statement or Form 1040-NR, depending on your status on Dec 31).
The Two Tests That Determine Residency
To decide if you are a resident or nonresident, the IRS uses two major tests.
1. The Green Card Test
This is simple: If the U.S. Citizenship and Immigration Services (USCIS) issued you a Permanent Resident Card (Green Card) at any point in the year, you are a resident alien for tax purposes starting from the first day of your physical presence in the U.S. as a permanent resident.
2. The Substantial Presence Test (SPT)
This is the most common way to become a resident without a Green Card. It is a mathematical calculation based on how many days you have been physically present in the U.S. over a three-year period.
You meet the SPT if you are present for at least 31 days in the current year AND the total sum of days over the 3-year period equals 183 days or more, calculated as follows:
Practical Example for 2025
You were in the U.S. 150 days in 2025, 150 days in 2024, and 150 days in 2023.
- 2025: 150 × 1 = 150 days
- 2024: 150 × 1/3 = 50 days
- 2023: 150 × 1/6 = 25 days
- Total: 150 + 50 + 25 = 225 days → You are a Resident Alien for tax purposes in 2025.
Detailed Look at Each Status
1. Nonresident (NR) Status
You file as a Nonresident if you do not meet the Green Card test or the SPT. Additionally, even if you physically meet the SPT, you may still file as a Nonresident if you qualify for a specific exception:
Closer Connection Exception (Form 8840): You were present in the U.S. for less than 183 days in the current year, your tax home is in a foreign country, and you have a "closer connection" to that country than to the U.S.
2. Dual-Status Year
This is required when your residency changes during the year. There are two common scenarios:
- •
Year of Arrival: You arrive mid-year and meet the SPT (or First-Year Choice) on a specific date. You are a nonresident from Jan 1 until that day, and a resident from that day to Dec 31.
- •
Year of Departure: You give up your Green Card or leave the U.S. mid-year after meeting the SPT. You are a resident from Jan 1 until your departure date, and a nonresident afterward.
Important Rules for Dual-Status Returns
- •You cannot claim the standard deduction.
- •You cannot file as "Head of Household."
- •You generally cannot claim the Earned Income Tax Credit (EITC).
3. Full-Year Resident
You file a standard 1040 as a full-year resident if you pass the Green Card or SPT for the entire year, or if you are a U.S. citizen.
Filing Requirements Summary
References official IRS forms and publications.
| Filing Status | Taxable Income | Primary Form | Standard Deduction? | Key Reference |
|---|---|---|---|---|
| Nonresident | U.S. Sources Only | 1040-NR | No | Pub 519 |
| Dual-Status | Split (Worldwide + U.S.) | 1040 + Statement (or 1040-NR) | No | Pub 519, Sec. 1.1411-2 |
| Full-Year Resident | Worldwide | Form 1040 | Yes | Pub 519 |
Critical Notes for 2025 & Beyond
Visas Don't Determine Tax: Your visa (F-1 student, H-1B worker, B-2 tourist) does not automatically make you a nonresident. The day count does. Even a tourist can become a tax resident if they stay too long.
First-Year Choice: If you arrive late in the year (e.g., November) and do not yet meet the SPT, you might elect to be treated as a resident for part of that first year to claim benefits (like dependency exemptions) which can be better than filing as a nonresident.
The 183-Day Myth: You do not have to spend 183 days in the current year to be a resident. Because of the weighted formula (adding 1/3 of last year and 1/6 of the year before), you can fail the 31-day test but pass the 183-day total. Conversely, you can physically be in the U.S. for 300 days in one year and still be a nonresident if you were here on an F-1 visa (as those days are often "exempt" for the first 5 years).
NRA Spouse Election: If you are a Dual-Status alien married to a U.S. citizen or resident, you can sometimes elect to be treated as a full-year resident and file a joint return (Form 1040). This allows the standard deduction but subjects the nonresident spouse's worldwide income to U.S. tax.