The three lines that matter
Under 180 days
Generally low risk for green card status. Routine reentry, though long or frequent trips still draw questions.
180 days β 1 year
Scrutiny zone. CBP can question abandonment and send you to secondary inspection. Ties evidence matters.
1 year or more
Without a reentry permit, the green card is generally invalid for reentry. SB-1 visa territory.
The legal basis is INA Β§101(a)(13)(C) β a returning resident who has been abroad for a continuous period over 180 days, or who otherwise shows intent to abandon, can be treated as seeking a new admission. The one-year mark is where the green card stops working as a travel document on its own.
The reentry permit β and what it does NOT do
What it does: A reentry permit (Form I-131) lets a permanent resident stay abroad up to 2 years without an automatic finding of abandonment. You must apply while physically in the US and complete biometrics before leaving β you cannot apply from abroad. Processing has been running long (well over a year in 2026), so plan ahead.
What it does NOT do: It does not preserve your continuous residence for naturalization, and it does not guarantee admission β a CBP officer can still assess your ties and intent. It also does not replace your green card; you carry both.
If you've spent more than 4 of the past 5 years abroad, USCIS may limit a new permit to one year.
If you've already been abroad over a year
Without a valid reentry permit, your green card is generally not sufficient to board a US-bound flight or reenter. Two main paths exist:
- SB-1 Returning Resident Visa β applied for at a US consulate. You must prove your extended absence was temporary and caused by circumstances beyond your control (medical emergency, etc.). It is discretionary and frequently denied.
- New immigrant visa processing β in some cases consulates prefer you re-apply from scratch rather than grant SB-1.
Both are high-stakes and document-heavy. This is the point where professional representation matters most.
Frequently asked questions
Q. I came back every 5 months β am I safe?
A. Staying under 180 days per trip helps with green card status, but a pattern of living mostly abroad with brief US visits can still be treated as abandonment. And for citizenship, repeated long trips erode the physical-presence requirement.
Q. Does a reentry permit guarantee I can come back?
A. No. It removes the automatic abandonment presumption for up to 2 years, but a border officer can still examine your ties and intent and refer you to secondary inspection.
Q. How does this differ from the citizenship clock?
A. Green card abandonment is about keeping your status. Continuous residence is about qualifying for citizenship β and it's stricter: 6 months abroad creates a rebuttable break, 1 year breaks it. Our N-400 checker covers that side.
Q. What evidence shows I didn't abandon residence?
A. A US home, US tax returns filed as a resident, US employment, family, bank accounts, and a clear temporary reason for the trip. The more your "center of life" stays in the US, the stronger your case.
Sources: INA Β§101(a)(13)(C), 8 U.S.C. Β§1101(a)(13); USCIS reentry permit (Form I-131) and SB-1 returning resident guidance; CBP admissibility practice. This calculator models the day thresholds only and is not legal advice β abandonment turns on intent and the totality of circumstances. Consult a licensed US immigration attorney before traveling or attempting reentry. Also check our US Citizenship (N-400) eligibility checker.