Lawful permanent resident for three years
The applicant generally must have held lawful permanent resident status for at least three years immediately before filing.
Naturalization information for spouses
Some lawful permanent residents married to U.S. citizens may apply for naturalization under a three-year provision. Marriage alone does not create citizenship or guarantee eligibility.
Plain-language definition
The three-year rule is a naturalization provision for certain lawful permanent residents whose eligibility is based on marriage to a U.S. citizen. It shortens the usual five-year permanent-residence period, but it does not remove the other eligibility requirements.
The applicant generally must have been married to and living in marital union with the same spouse for the three years immediately before filing. The spouse generally must have been a U.S. citizen throughout that period.
The applicant must remain the U.S. citizen’s spouse from filing through the Oath of Allegiance. Changes in the relationship can affect which provision is available.
General screening framework
These questions provide a starting point only. They do not determine eligibility.
The applicant generally must have held lawful permanent resident status for at least three years immediately before filing.
The qualifying marriage generally must have existed for the three years immediately before filing, and the couple must remain married through naturalization.
The spouse generally must have held U.S. citizenship throughout the required three-year period, whether by birth or naturalization.
The applicant generally must have lived in marital union with the citizen spouse during the three years immediately before filing.
The applicant generally needs three years of continuous residence and at least 18 months—548 days—of physical presence in the United States.
Age, local residence, good moral character, English, civics, attachment to the Constitution and the oath requirements may also apply.
A central eligibility question
USCIS generally considers whether the applicant actually resided with the U.S.-citizen spouse during the required three-year period. A valid marriage certificate alone may not be enough to establish marital union.
Legal separation generally disrupts marital union. Informal separation, work-related distance, military service and other living arrangements can require a fact-specific review rather than a simple yes-or-no conclusion.
Divorce, annulment, the spouse’s death or a change in citizenship status before naturalization may affect eligibility under this provision, even if Form N-400 was already filed.
Separate calculations
The applicant generally must have resided continuously in the United States for three years immediately before filing and continue residing in the country through naturalization.
The applicant generally must have been physically present in the United States for at least 18 months, or 548 days, during the three years before filing.
The applicant generally must live for at least three months in the state or USCIS district with jurisdiction before filing, subject to current rules.
Timing the application
USCIS generally allows filing up to 90 calendar days before completing the continuous-residence requirement. This early-filing rule applies to the residence period—not every element of the three-year provision.
Other requirements must generally be satisfied when Form N-400 is filed. In particular, applicants should not assume they can shorten the required marriage, marital-union or spouse-citizenship periods by 90 days.
The “Resident Since” date, marriage date, spouse’s citizenship date, shared-residence history and exact filing date should be checked together.
Preparation documents
The appropriate evidence depends on the individual application. Use these as examples, not as a universal attachment list.
Copy of both sides of the Green Card, prior cards, relevant USCIS notices and documents connected with conditional residence or removal of conditions.
Marriage certificate, evidence of the spouse’s U.S. citizenship and records showing how all prior marriages for either spouse ended.
Examples may include jointly filed tax transcripts, leases or mortgages, bank or insurance records, children’s birth certificates and other shared-life documentation.
Complete addresses, employment or school history, passports, itineraries, calendars and a written list of all travel during the required period.
General process
Compare the three-year marriage provision with the general five-year rule and any other citizenship path that may apply.
Align permanent residence, marriage, spouse citizenship, shared residence, travel and other relevant dates.
Identify missing evidence, extended travel, relationship changes, conditional residence or other issues requiring closer review.
Confirm the Form N-400 edition, fee, filing method, address, evidence requirements and procedures immediately before filing.
When closer review may help
Consider individual review if the couple lived apart, the spouse recently became a U.S. citizen, the marriage or immigration dates are close to the planned filing date, or a divorce, separation, annulment or death has occurred.
Review may also be important when Form I-751 is pending, there were prior marriages or immigration filings, travel was extended, taxes were filed separately, records show different addresses, or the applicant has arrests, citations or other legal history.
These facts do not produce the same conclusion in every case. The complete history and current rules should be considered before filing.
Common questions
No. Marriage does not automatically grant U.S. citizenship. A lawful permanent resident must qualify under an applicable naturalization provision and complete the USCIS process.
Under the general marriage-based provision, the applicant generally must satisfy both periods, along with the spouse-citizenship and marital-union requirements.
The spouse generally must have been a U.S. citizen throughout the three years immediately before filing under this provision. The general five-year route may still be relevant.
Different addresses may require closer review of whether the marital-union requirement is met. The reason, duration and surrounding evidence can matter.
The applicant generally must remain married to the U.S.-citizen spouse through naturalization. Separation or divorce may affect eligibility under the three-year provision and should be reviewed promptly.
Some conditional residents may file Form N-400 when otherwise eligible, but USCIS must resolve the conditions on residence before or together with the naturalization application. The case history should be reviewed.
USCIS generally applies the same marriage-based naturalization rules when the marriage was legally valid in the place where it was celebrated, subject to current law and policy.
Anaya’s Way New York provides confidential intake and initial situation reviews at 94-42 60th Ave, Elmhurst, NY 11373. Call (347) 795-9024 or (347) 795-9025.
Request a free immigration situation evaluation, visit the Elmhurst office or call to discuss the dates, records and questions that may require individual review.
Official resources: USCIS — Married to a U.S. Citizen, USCIS — Marriage and Marital Union, USCIS — Spouses Residing in the United States, USCIS — Form N-400 and USCIS — Apply for Naturalization.
Learn more about immigration services in Queens, Anaya’s Way New York, or contact the Elmhurst office.
This page provides general educational information and is not legal advice or an eligibility determination. Marriage to a U.S. citizen does not automatically provide citizenship or guarantee eligibility for the three-year naturalization provision. Requirements depend on individual facts, immigration history and current law. Form editions, fees, filing methods, addresses, evidence requirements, procedures and deadlines can change. Verify current requirements directly with USCIS immediately before publication and before filing. Anaya’s Way is not presented as a law firm. A free situation evaluation does not establish eligibility, create an attorney-client relationship, constitute a filing or guarantee approval or any other outcome.