Green Card Test

The green card test is one of the two tests the IRS uses to decide whether a foreign individual is a US resident alien for tax purposes. The IRS states that you meet it if you are “a lawful permanent resident of the United States at any time during the calendar year” (IRS Green Card Test). The other route is the substantial presence test, a day-count rule. Meeting either one makes the individual a resident alien, taxed like a US citizen. For a US company paying a foreign worker, the green card test is one of the two questions that decides which tax form to collect and how to report the payment.

How the Test Is Met

Lawful permanent residence is, in the IRS words, the privilege “according to the immigration laws, of residing permanently in the United States as an immigrant” (IRS Green Card Test). This status is generally shown when US Citizenship and Immigration Services issues a Permanent Resident Card, Form I-551, the document commonly called a green card.

The test is not a day count. A single day of lawful permanent residence during the calendar year is enough to make the individual a resident alien for that year. This is the key difference from the substantial presence test, which turns entirely on how many weighted days the person was physically present in the US.

When Resident Status Begins and Ends

Once granted, lawful permanent resident status continues for tax purposes until it ends in one of three ways set out by the IRS. The status is renounced voluntarily in writing to USCIS, it is administratively terminated by USCIS, or it is judicially terminated by a US federal court. Until one of those happens, the green card test continues to treat the person as a resident alien, even while living abroad.

For an individual who meets the green card test but not the substantial presence test in a tax year, the IRS sets the residency starting date as “the first day on which you are present in the United States as a lawful permanent resident” (IRS Green Card Test).

Why It Matters to a US Payer

Resident-alien status changes how a payment is taxed and documented.

• Worldwide income. The IRS states that “U.S. residents are generally taxed in the same way as U.S. citizens,” so their worldwide income is subject to US tax and reported on a US return, whether earned inside or outside the US (IRS Taxation of Resident Aliens).
• The tax form. A green card holder who meets the test gives the payer Form W-9, the same form a US person uses, and the payer reports payments the way it reports payments to any US contractor.
• By contrast. A nonresident alien, an individual who meets neither test, gives Form W-8BEN and is taxed only on US-source income.

Collecting the wrong form leads to the wrong withholding and the wrong year-end return. Treating a green card holder as a nonresident alien, or the reverse, puts the payer on the wrong reporting path from the first payment.

Common Pitfalls

• Confusing residence with location. A green card holder is a resident alien even while living and working outside the US, because the test depends on immigration status, not physical presence.
• Assuming the card must be used. Holding lawful permanent resident status is what counts. The test applies whether or not the person spends any days in the US during the year.
• Forgetting the status persists. Lawful permanent residence continues for tax purposes until it is renounced, administratively terminated, or judicially terminated, not simply when someone leaves the country.

Related Terms

• Substantial Presence Test: the day-count route to resident-alien status for individuals without a green card.
• Nonresident Alien: an individual who meets neither test and is taxed only on US-source income.
• Form W-8BEN: the certificate a nonresident alien gives a US payer, in contrast to the Form W-9 a resident alien provides.

Omnivoo Contract Management checks each worker’s tax status and documentation, sorting resident aliens from nonresident aliens, so US-source payments are reported under the right rules from the first payment onward.