Naturalization Eligibility Calculator

Naturalization eligibility under INA 316(a) (or the INA 319(a) exception for spouses of U.S. citizens) turns on several distinct numeric thresholds, and this calculator checks each one separately. Meets Residency Req. compares Years as Permanent Resident against Required Years (3 or 5) -- 5 years as a lawful permanent resident for the standard path, or 3 years if married to and living with a U.S. citizen spouse. Meets Presence Req. compares Months Physically in U.S. against half of the required period in months -- USCIS requires physical presence in the U.S. for at least half of the statutory period: 30 months out of the standard 5-year period, or 18 months out of the 3-year spousal period. Meets State Req. checks Months in Current State against a 3-month minimum, since an applicant must have resided in the state or USCIS district where they file for at least 3 months before filing. Continuous Residence Broken flags Longest Absence (Days) over 180 days (roughly 6 months) -- under USCIS policy, an absence of more than 6 months but less than a year creates a rebuttable presumption that continuous residence was broken, which this calculator treats conservatively as disqualifying rather than modeling the rebuttal process.

An absence of 365 days or more is a much stronger break and is flagged separately as Continuous Residence Broken (Presumed Abandoned). Likely Eligible reads "Yes" only when every requirement is met and continuous residence was not broken. Residency Deficit and Presence Deficit show how many more months are needed to close any gap. This tool estimates eligibility for planning purposes only -- it does not model every exception (military service, employment abroad, or an approved N-470), and specific facts should always be reviewed with an immigration attorney or USCIS directly before filing Form N-400.