Key Takeaways
- Non-U.S. citizens taxed on worldwide income.
- Qualify by green card or substantial presence test.
- File taxes using Form 1040 like U.S. citizens.
What is Resident Alien?
A resident alien is a non-U.S. citizen who meets either the IRS green card test or substantial presence test, requiring you to report and pay U.S. federal income taxes on your worldwide income, similar to U.S. citizens. This status is determined annually for federal tax purposes and affects your tax filing requirements.
Resident aliens file taxes using Form 1040 and are taxed on global income, unlike nonresident aliens who pay taxes only on U.S.-source income.
Key Characteristics
Resident alien status has distinct attributes that impact your tax and legal responsibilities.
- IRS Tests: You qualify by passing the green card test or the substantial presence test, based on your immigration status or physical presence in the U.S.
- Worldwide Taxation: Resident aliens are taxed on all income, both domestic and international, reflecting a similar ability to pay taxation as U.S. citizens.
- Tax Filing: Use IRS Form 1040 for annual tax returns, differentiating you from nonresident aliens who file Form 1040-NR.
- Exemptions: Certain visa holders and individuals with closer connection exceptions may not be classified as resident aliens despite substantial presence.
How It Works
Determining resident alien status hinges on two main IRS criteria: the green card test and the substantial presence test. Holding a green card at any point during the year automatically classifies you as a resident alien for tax purposes.
The substantial presence test calculates your days physically present in the U.S. over a three-year period with a weighted formula. If you meet the threshold, you owe taxes on global income, similar to a U.S. citizen. However, you may exclude certain days depending on your visa type or file Form 8840 for a closer connection exception.
Examples and Use Cases
Understanding resident alien status is essential in various professional and personal contexts.
- Long-term Workers: Employees working in the U.S. for companies like Delta may become resident aliens due to extended presence.
- Students and Trainees: Individuals on F, J, or Q visas often qualify as nonresident aliens initially but become resident aliens after exemption periods end.
- Investors: Resident aliens investing in dividend-paying stocks can benefit from tax treatments explained in guides such as best dividend stocks for beginners.
- Tax Planning: Those seeking efficient tax strategies might explore options like the backdoor Roth IRA to optimize retirement savings under their resident alien tax obligations.
Important Considerations
Recognizing your resident alien status affects your tax obligations and eligibility for financial products. You should carefully track your days in the U.S. to correctly apply the substantial presence test and consider visa-specific exemptions.
Consulting IRS guidelines and leveraging resources like best low-cost index funds can help you align your investment choices with your tax situation. Staying informed ensures compliance with your tax obligations while optimizing your financial planning.
Final Words
Resident alien status means you must report worldwide income on your U.S. tax return, similar to citizens. Review your presence and immigration status annually to determine your classification and prepare accordingly.
Frequently Asked Questions
A resident alien is a non-U.S. citizen who meets either the green card test or the substantial presence test for a calendar year, requiring them to report and pay U.S. federal income taxes on their worldwide income, similar to U.S. citizens.
If you hold a valid green card (Form I-551) at any time during the year, you are considered a resident alien for that entire year. This includes permanent, conditional, and returning residents unless the status is formally abandoned or revoked.
The substantial presence test requires you to be physically present in the U.S. for at least 31 days in the current year and a total of 183 days over the current and prior two years, calculated using a specific formula that counts all current year days, one-third of the previous year, and one-sixth of the year before that.
Yes, by filing Form 8840 and meeting the closer connection exception criteria—such as having a tax home and closer ties in a foreign country, and being present in the U.S. less than 183 days in the year—a person can remain a nonresident alien despite passing the test.
Yes, resident aliens file their federal income taxes using Form 1040, just like U.S. citizens. Nonresident aliens, however, use Form 1040-NR.
Yes, resident aliens are taxed on their worldwide income, meaning they must report all income earned both inside and outside the United States on their tax returns.
Resident alien status for tax purposes is determined by IRS tests and does not always align directly with immigration status, though green card holders are automatically resident aliens.
If you hold a green card at any time during the year, you are considered a resident alien for the entire calendar year for tax purposes, regardless of how many months you actually held the card.

