Reviewed and updated October 16, 2026
Rules and decisions to review
- Noncitizens generally review the green card test and substantial presence test; exceptions, elections and treaty positions can alter the result.
- The substantial presence test uses a weighted three-year day count. Not every day necessarily counts, and special rules apply to some visa holders.
- Departure does not automatically terminate resident-alien status. Starting and ending dates can produce a dual-status tax year.
- A state may apply its own domicile and residency rules even when federal treatment changes. Foreign-country residency is another separate analysis.
A practical example
Someone relocating overseas with a green card should not assume an overseas lease ends U.S. resident-alien treatment. Immigration status, days present, treaty rules and any formal actions need to be evaluated together.
Records to gather
Gather passport travel records, visa or green card information, move dates, state ties and foreign residency documents.
Your next step
Build a day-by-day travel calendar and identify the relevant citizenship, immigration and state-domicile facts. Ask for a residency analysis before selecting the return type or claiming treaty treatment.
Official sources
This guide provides general information. The rules depend on the tax year, jurisdiction and your circumstances. Ask our team which filing or planning steps apply to you.
