What Is the Green Card Test for U.S. Tax Residency?

If you hold a green card at any point during the calendar year, the green card test for tax residency makes you a U.S. resident alien, and the IRS taxes your worldwide income the same way it taxes a citizen’s.¹ The test turns on your immigration status, not on how many days you actually spend in the country, and it stays active until that status is formally ended.

How the Green Card Test Works

The rule is simple. If U.S. Citizenship and Immigration Services has granted you the privilege of residing permanently in the United States as an immigrant, you are a resident alien for federal tax purposes. Your green card (Form I-551) is the proof.² You don’t need to live here full-time, work here, or even set foot in the country during the year. If USCIS records show you as a lawful permanent resident, the IRS treats you as a resident.

The obligation follows you until your status is taken away or abandoned. Letting the physical card expire doesn’t end it. Moving abroad for years doesn’t end it. As long as you remain a lawful permanent resident on the books, the worldwide tax obligation travels with you.³ This catches long-term expatriates off guard.

When Your Tax Residency Starts

Your residency starting date depends on where you are when USCIS approves your permanent resident status. If you are already in the United States on the day of approval, tax residency begins on the first day you are physically present as a lawful permanent resident.⁴

If your immigrant visa is issued while you are living abroad, the clock doesn’t start until you enter the country. Residency begins on the first day you are physically present in the United States after getting your green card. If your visa is issued in October but you don’t arrive until December 15, only income from December 15 onward falls under resident alien rules that year. If you also meet the substantial presence test in the same year, your starting date is whichever comes earlier.³

Filing in Your First Year

The year you become a green card holder is usually a dual-status year. You are a nonresident alien for part of the year and a resident alien for the rest. For the resident portion, you report worldwide income. For the nonresident portion, only U.S.-source income. Which return you file depends on your status on December 31.⁵

Resident on December 31: file Form 1040 with “Dual-Status Return” written across the top, attaching a Form 1040-NR labeled “Dual-Status Statement” for the nonresident portion.
Nonresident on December 31: file Form 1040-NR with “Dual-Status Return” across the top, attaching a Form 1040 labeled “Dual-Status Statement” for the resident portion.

The practical catch that surprises most first-year filers: you cannot claim the standard deduction in a dual-status year. You can only itemize.⁵ For new green card holders without U.S. property or significant deductible expenses, the tax bill in year one is often noticeably higher than expected.

Worldwide Income After Year One

Once you are a resident alien, the IRS expects to see every dollar you earn, wherever you earn it. Wages from a foreign employer, rental income from property overseas, interest from accounts in your home country, gains from selling assets abroad. It all goes on your U.S. return, filed on Form 1040, the same form citizens use.²¹

If another country taxes the same income, you can generally claim the foreign tax credit on Form 1116 to avoid double taxation. The credit doesn’t always cover the full amount, especially when the foreign rate is lower than the U.S. rate. The IRS has information-sharing agreements with dozens of countries, so unreported foreign income is increasingly difficult to keep out of view.

Reporting Foreign Accounts and Assets

Reporting foreign income is only part of the job. Resident aliens face separate disclosure requirements for foreign financial accounts and assets, on forms that are filed separately from the tax return and carry their own deadlines and penalties.

FBAR (FinCEN Form 114)

If the combined value of your foreign financial accounts exceeds $10,000 at any point during the year, you must file FinCEN Form 114, the Report of Foreign Bank and Financial Accounts.⁶ It covers bank accounts, brokerage accounts, mutual funds, and certain other financial accounts held outside the United States. The FBAR is due April 15 with an automatic extension to October 15, filed electronically through FinCEN’s BSA E-Filing system rather than with your tax return.⁷

FATCA (Form 8938)

Under the Foreign Account Tax Compliance Act, you may also need to file Form 8938 with your tax return to report specified foreign financial assets. Thresholds depend on your filing status and whether you live in the U.S. or abroad.⁸

Unmarried, living in the U.S.: total value exceeds $50,000 on the last day of the year or $75,000 at any time during the year.
Married filing jointly, living in the U.S.: total value exceeds $100,000 on the last day of the year or $150,000 at any time.
Living abroad, not filing jointly: total value exceeds $200,000 on the last day of the year or $300,000 at any time.
Living abroad, filing jointly: total value exceeds $400,000 on the last day of the year or $600,000 at any time.

FBAR and Form 8938 are separate requirements with different thresholds, different filing methods, and different penalties. You may need to file both. The penalty for failing to file Form 8938 starts at $10,000, with an additional penalty of up to $50,000 for continued noncompliance after IRS notification, plus a 40 percent penalty on any tax understatement tied to undisclosed assets.⁹

Foreign Gifts and Trusts (Form 3520)

If you receive a large gift or inheritance from a foreign person, or distributions from a foreign trust, you must report it on Form 3520. The penalty for failing to file is the greater of $10,000 or 35 percent of the reportable amount, and an additional $10,000 accrues every 30 days that noncompliance continues after IRS notice.¹⁰ These are among the harshest penalties in the tax code for an information return.

The Treaty Tie-Breaker Trap

Some green card holders also qualify as tax residents of another country under that country’s own law. When that happens, the tax treaty between the two countries may contain tie-breaker rules that let you claim residence in only one country for income tax purposes. You take the position by filing Form 8833 with your return.¹¹

Here is where the trap sits. If you are a long-term resident, meaning you have held your green card during at least 8 of the past 15 tax years, and you use a treaty tie-breaker to claim residence in another country, the IRS treats the election as a termination of your U.S. residency. You are deemed to have expatriated, which can trigger the exit tax described below.¹² Failing to file Form 8833 when required carries a $1,000 penalty for individuals. Green card holders who haven’t reached the 8-year mark should still be cautious, because claiming treaty nonresident status while keeping a green card creates tension between your tax position and your immigration status.

How Tax Residency Ends

You remain a resident alien for tax purposes until one of three things happens.³

You turn in your green card to USCIS and abandon your immigrant status by filing Form I-407.¹³
USCIS revokes your status, typically for abandonment (such as extended absences) or criminal grounds.
A federal court orders the revocation of your status.

Nothing short of these actions ends the obligation. Moving abroad permanently, letting the physical card expire, or simply stopping your filings does not sever the tax connection. USCIS shares your name and the filing date with the IRS when you submit Form I-407, so the government knows exactly when the clock stopped.¹³

The Sailing Permit

If you are leaving the country, you generally need a tax clearance document, sometimes called a sailing permit or departure permit, before you go. You obtain it by filing Form 1040-C or Form 2063 at a local IRS Taxpayer Assistance Center at least two weeks before departure but no earlier than 30 days out.¹⁴ The certificate confirms you have satisfied your U.S. tax obligations. Certain categories of departing aliens are exempt, but if you owe taxes or haven’t filed, expect the process to take longer.

The Exit Tax for Long-Term Residents

Green card holders who surrender their status after holding it for at least 8 of the prior 15 tax years are classified as long-term residents and face a potential expatriation tax under IRC 877A.¹⁵ This is the same exit tax that applies to citizens who renounce citizenship, and the bill can be substantial.

You become a “covered expatriate” (the category that triggers the tax) if any one of the following applies:

Your average annual net income tax for the five years before your expatriation date exceeds $211,000 (the 2026 threshold).¹⁶
Your net worth is $2 million or more on the date you terminate residency.¹⁵
You fail to certify on Form 8854 that you have complied with all federal tax obligations for the preceding five years.¹⁵

If you are a covered expatriate, the IRS treats all your property as sold at fair market value on the day before your expatriation date. The gain from this deemed sale is taxable, though the first $910,000 of gain is excluded for 2026.¹⁶ For someone with appreciated real estate, a retirement portfolio, or business interests, the tax owed can be significant even after the exclusion. A deferral election on specific assets is available but comes with strings, including posting security and waiving treaty protections against collection.¹⁷

Form 8854 goes with your tax return for the year of expatriation. The penalty for failing to file it, or filing it with incomplete or incorrect information, is $10,000.¹² If you held your green card for fewer than 8 of the prior 15 years, the exit tax does not apply, though you still need to properly terminate your status and handle the dual-status filing for your final year.

1
Internal Revenue Service. Topic No. 851, Resident and Nonresident Aliens
2
Internal Revenue Service. Publication 519, U.S. Tax Guide for Aliens
3
Internal Revenue Service. Residency Starting and Ending Dates
4
eCFR. 26 CFR 301.7701(b)-4 – Residency Time Periods
5
Internal Revenue Service. Taxation of Dual-Status Individuals
6
FinCEN. Reporting Maximum Account Value
7
Internal Revenue Service. Report of Foreign Bank and Financial Accounts (FBAR)
8
Internal Revenue Service. Do I Need to File Form 8938, Statement of Specified Foreign Financial Assets
9
Internal Revenue Service. Summary of FATCA Reporting for US Taxpayers
10
Internal Revenue Service. Failure to File the Form 3520/3520-A Penalties
11
Internal Revenue Service. About Form 8833, Treaty-Based Return Position Disclosure Under Section 6114 or 7701(b)
12
Internal Revenue Service. Instructions for Form 8854
13
U.S. Citizenship and Immigration Services. I-407, Record of Abandonment of Lawful Permanent Resident Status
14
Internal Revenue Service. Alien Tax Clearance
15
Internal Revenue Service. Expatriation Tax
16
Internal Revenue Service. Rev. Proc. 2025-32
17
Office of the Law Revision Counsel. 26 USC 877A – Tax Responsibilities of Expatriation