United States Green Card (Abandonment, Absence rule)

Key parameters
Limit	180 days (6 months) abroad
Period / Window	Per trip
Counting	Whole days of absence
Additional requirements	Intent to reside, US ties, re-entry permit

This applies to any lawful permanent resident (LPR) traveling outside the US, however the green card was obtained, for as long as they hold it.

There's no fixed day limit. The test is intent — whether the US is still your home or you've effectively moved away. The longer a single trip runs, the more it counts against you, and past 180 days (6 months) an officer can start asking questions.

What actually protects you is evidence of ties: a US home, job, family, resident tax filings, bank accounts. Filing as a non-resident for tax purposes cuts directly against you — it's a formal declaration that you don't live there.

A re-entry permit doesn't stop abandonment being found on the facts, but it keeps a valid travel document in hand and shows the absence was planned as temporary.

• Short returns don't reset anything reliably. Coming back for a fortnight each year to "keep the card alive" is a well-known pattern, and officers treat it as evidence of living abroad rather than proof of residence.
• Filing taxes as a non-resident is close to fatal. It's a formal statement to a US authority that you don't reside there, and it directly contradicts the intent the rule tests.
• A re-entry permit isn't a guarantee. It gives you a valid travel document and evidence that the absence was planned as temporary, but abandonment can still be found on the overall facts.
• A re-entry permit can be cut to one year. If you've already spent more than four of the last five years outside the US, it's generally issued for one year rather than two.
• Citizenship uses a stricter clock. Its continuous residence test is disrupted by any single absence of more than 180 days (6 months) — so a trip that preserves your green card can still set your citizenship timing back.
• Signing the abandonment form gives up the status voluntarily. Officers sometimes present it at the border to someone with a long absence, and signing is a choice rather than an obligation.

Being found to have abandoned residence means losing permanent status, and that is decided by an immigration judge rather than at the counter. You may still be pressed to surrender the card voluntarily instead. The knock-on effect is often larger than the loss itself: years of accumulated residence toward naturalisation disappear, and regaining permanent residence generally means starting the whole immigrant process again. Professional advice is strongly recommended in situations like this.

An ordinary long trip

You spend four months abroad visiting family, keeping your US home, job and tax filings in place. You're well under 180 days (6 months), your ties are intact, and re-entry is routine.

A planned two-year posting

Your employer sends you overseas for two years. You apply for a re-entry permit before leaving, receive it, and travel on it — so your absence carries no presumption of abandonment and your card stays valid for return.

Brief visits that don't preserve residence

You've lived abroad for four years, returning for two weeks each year to use the card. No single absence reached a year, but your home, work and life are demonstrably elsewhere, so an officer can find you abandoned residence despite the regular entries.

• USCIS — Maintaining permanent residence
• USCIS — Travel documents (re-entry permit)
• US Department of State — Returning Resident Visas