Permanent residence is only permanent if you keep living in the United States, and the rules that police that are day counts with cliffs. Here is the actual structure, per USCIS guidance on international travel as a permanent resident. Updated 10 August 2026.
The thresholds
- Under 6 months: ordinary travel. Repeated long absences can still draw questions about where you actually live, but a single sub-six-month trip is routine.
- 6 to 12 months: you are presumed to have broken continuous residence for naturalisation purposes (rebuttable with evidence), and border officers look harder at whether the US is still your home.
- Over 1 year without a re-entry permit: the card itself no longer serves as a valid entry document and the absence is treated as presumptively abandoning residence. The fallback, an SB-1 returning resident visa, requires proving the overstay abroad was beyond your control.
- Re-entry permit (Form I-131): applied for while physically in the US, it preserves your ability to return after absences of up to two years, though it does not by itself preserve the naturalisation clock.
Abandonment is a pattern, not just a threshold
Officers and immigration judges look at the whole picture: where you work, where your family and home are, tax filings, and the shape of your travel. A pattern of eleven-month absences with brief US touchdowns fails people who never crossed the one-year line. The defence, in every version of this dispute, is documentary: a precise account of your days in and out, alongside the ties evidence.
The naturalisation interaction
If citizenship is the goal, the counts tighten further: continuous residence and physical presence requirements run on their own arithmetic, and a six-month absence dents them even when the green card itself is safe.
The tax rule nobody mentions
Holding a green card makes you a US tax resident regardless of where you live (the "green card test"), with worldwide filing obligations that continue until the status is formally abandoned or revoked. Long absences do not pause it, and the exit itself can trigger expatriation rules for long-term residents. Pair travel planning with tax advice; our dual residency guide covers the collision with your other country's rules.
Count both directions
The Days Monitor iPhone app logs your US and foreign days automatically: set rules for the 6-month and 1-year lines with alerts before either approaches, and export the timestamped history that abandonment and naturalisation cases turn on. Download it on the App Store.
Sources
- USCIS, International travel as a permanent resident (accessed 10 August 2026)
- USCIS, Form I-131 (re-entry permits) (accessed 10 August 2026)
This article is general information, not legal, tax or immigration advice. Immigration rules change frequently and are applied to individual facts; verify current requirements with the official sources linked above and take advice from a qualified professional before making decisions.
Frequently Asked Questions
How long can I stay outside the US with a green card?
What is a re-entry permit and when should I get one?
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