When can I apply for U.S. citizenship?

Long trips and your green card

Separate from naturalization, a long absence can put the green card itself at risk.

• Over 6 months: absences of six months or more may disrupt continuous residence for naturalization, and USCIS says abandonment of residence can be found even for trips under a year. [USCIS travel]
• One year or more: the green card works as an entry document only after an absence of less than 1 year. USCIS says to get a re-entry permit before a trip of one year or more; a general guide for abandonment is an absence of more than a year. [8 CFR 211.1][USCIS travel docs][USCIS travel]
• Re-entry permit (Form I-131): file while you are in the U.S. and attend biometrics before leaving. It is generally valid for 2 years (1 year if you spent more than 4 of the last 5 years abroad) and cannot be extended. [I-131 instr.]
• A re-entry permit protects the green card, not naturalization: a trip of 1 year or more still breaks continuous residence unless you have an approved N-470. [PM 12.D.3][N-470]

How this calculator counts

1. Days abroad on a trip are the days strictly between the departure and return dates. The day you leave and the day you come back count as days in the U.S. (USCIS Policy Manual and N-400 instructions). [PM 12.D.4][N-400 instr.]
2. “More than 6 months” means more than 180 days abroad, and “1 year” means 365 days or more, counted the same way. [PM 12.D.3]
3. Physical presence is counted in the 5 (or 3) years before the filing date, and days before your green card date are not counted. USCIS does not spell out the early-filing case; this is the cautious reading. [PM 12.D.4][8 CFR 316.2][PM 12.G.3]
4. After a trip of 1 year or more, USCIS lets you file 4 years and 1 day after you return (2 years and 1 day on the 3-year route), once less than a year of that trip is left in the period, but you must still overcome the presumption for the part that remains. USCIS example: back Jan 2, 2011 → may apply Jan 3, 2015. [PM 12.D.3]
5. If you cannot rebut the presumption, you wait until no more than 180 days of the trip fall inside the period, and at least 4 years 6 months after returning (2 years 6 months). USCIS examples: back Jan 2, 2011 → July 6, 2015; back Aug 1, 2018 → Feb 1, 2023. Those two examples differ by a day in how they count, so we use whichever date is later. Switch on conservative mode to use this rule. [PM 12.D.3]

Evidence that can rebut the 6-month presumption

• You kept your U.S. job and did not work abroad
• Your immediate family stayed in the U.S.
• You kept full access to, or kept owning or renting, your U.S. home

From the Policy Manual and 8 CFR 316.5. Evidence “may include, but is not limited to” these items. [PM 12.D.3][8 CFR 316.5]