How many days can I be outside the US without breaking continuous residence for naturalization?

Q: Can I fix a broken continuous residence period?

Yes, indirectly. You generally need to wait and accrue a fresh period of continuous residence going forward before you're eligible to file N-400 again.

By Pinal Dave | Last updated: August 5, 2026

TL;DR: A single trip abroad of 6 months to 1 year creates a rebuttable presumption that you broke continuous residence for naturalization; a trip of 1 year or more breaks it automatically unless you filed Form N-470 in advance. Separately, you must be physically present in the US for at least 30 months out of the 5 years before filing N-400 (18 months out of 3 years if you're applying based on marriage to a US citizen).

The evidence

USCIS enforces two related but distinct rules under INA 316(a) and 319(a), both explained in USCIS's own "Continuous Residence and Physical Presence Requirements for Naturalization" policy guidance:

Rule	Standard 5-year path	Spouse-of-citizen 3-year path
Continuous residence required before filing	5 years as an LPR	3 years as an LPR
Physical presence required	At least 30 months in the US	At least 18 months in the US
Trip of less than 6 months	Generally doesn't break continuous residence	Same
Trip of 6 months to 1 year	Presumed break — you can rebut it with evidence (job, home, family ties, taxes)	Same
Trip of 1 year or more	Breaks continuous residence automatically	Same, unless N-470 filed

Step-by-step: how to protect your naturalization timeline

Track every trip's length, not just the total days abroad — a single long trip matters more than several short ones.
Keep trips under 6 months whenever possible to avoid triggering any presumption.
If a trip must run 6 to 12 months, gather evidence to rebut the presumption: continued US employment, a US home you kept, family who stayed behind, filed US tax returns as a resident.
If a trip will hit 1 year or more, file Form N-470 (Application to Preserve Residence for Naturalization Purposes) before you leave, if you qualify — mainly for people working abroad for a US employer, US research institution, or certain public international organizations.
Recalculate your eligibility date after any trip of 6 months or more, since USCIS may require you to restart the clock on continuous residence.

FAQ

Does a 5-month trip abroad break continuous residence? No. Trips under 6 months generally don't create any presumption of a break in continuous residence for naturalization purposes.

Can I fix a broken continuous residence period? Yes, indirectly — you generally need to wait and accrue a fresh period of continuous residence going forward before you're eligible to file N-400 again.

Is the physical presence requirement the same as continuous residence? No. Physical presence counts actual days in the US and requires at least 30 months out of 5 years (or 18 of 3 years for spouses of citizens); continuous residence looks at whether any single absence was long enough to interrupt your residency status.