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US Citizenship (N-400) Checker

Check whether you're eligible to file Form N-400 for naturalization — the 5-year and 3-year (spouse) tracks, physical presence, continuous residence and the 90-day early-filing rule.

1
Which track applies to you?
2
Years as a permanent resident (green card)

How long you've held your green card. You can file up to 90 days before hitting the 5 or 3-year mark.

3
Total days physically present in the US

Total days inside the US during the period (as a green card holder). Need 913 (5-yr) or 548 (3-yr).

4
Longest single trip outside the US

A trip of 6+ months may break continuous residence; 1 year or more breaks it automatically.

5
Lived in your current state/district 3+ months?

N-400 eligibility

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Tick each item as you gather it. Your progress is saved in this browser, so you can come back later. Nothing is uploaded.

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Frequently asked questions

Sources: INA §316 (5-year) and §319(a) (spouse 3-year); USCIS — Form N-400; USCIS Policy Manual; 8 CFR §316.2; USCIS fee schedule. Physical presence 913 days (5-yr) / 548 days (3-yr); 90-day early filing; 6-month absence presumption, 1-year automatic break; N-400 fee $710 online / $760 paper. Independent self-assessment, not legal advice; consult a licensed US immigration attorney.

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