Taxation of U.S. Residents: Green Card vs Substantial Presence

Olga Guzhva • March 21, 2024

If you are a U.S. resident within the meaning of Internal Revenue Code (IRC) section 7701(b)(1)(A), an immigrant needs to understand the U.S. tax obligations.

When you are a permanent resident, your worldwide income is subject to U.S. income tax the same way as a U.S. citizen. 

You are a resident of the United States for tax purposes if you meet either the green card test or the substantial presence test for the calendar year.

1. “Green Card” Test means that you possess a Permanent Resident Card, Form I-551, also known as a "green card”, at any time during the calendar year.
  • You continue to have U.S. resident status, unless: you voluntarily renounce and abandon your resident status, or your resident status is terminated, either by the USCIS, or by a U.S. federal court. 
If you meet the green card test at any time during the calendar year, but do not meet the substantial presence test for that year, your residency starting date is the first day on which you are present in the United States as a lawful permanent resident. In other words, if you have your green card for less than a full calendar year, your tax obligations could be less and are calculated as follows: 

2. In order to meet the Substantial Presence test, you must be physically present in the United States on at least:
  • 31 days during the current year, and 
  • 183 days during the 3-year period that includes the current year and the 2 years immediately before that, counting
a. All the days you were present in the current year, and
b. 1/3 of the days you were present in the first year before the current year, and
c. 1/6 of the days you were present in the second year before the current year.

In other words, a look back applies when calculating a substantial presence test for the U.S. tax purposes. If a green card holder does not meet a substantial presence test, then he or she is subject to U.S. income tax the same way as a U.S. citizen BUT ONLY for a portion of the calendar year, from the date of becoming a U.S. permanent resident. 

Navigating the complexities of the U.S. immigration and tax laws often requires professional legal guidance. Seeking assistance from an experienced immigration attorney well-versed in U.S. taxation can significantly enhance the chances of your successful immigrant planning, ensuring compliance with these intricate regulations and requirements.

If you have any questions about what this means for you, please schedule a consultation with our office. 

We look forward to working with you!

This blog is not intended to be legal advice and nothing here should be construed as establishing an attorney client relationship. Please schedule a consultation with an immigration attorney before acting on any information read here.

Olga Guzhva


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