N-400 Timeline: How Long Does Application for Naturalization Take?
Form N-400 is the application to become a U.S. citizen through naturalization. Eligible green card holders (lawful permanent residents) file it after meeting the required years of residence, typically 5 years, or 3 years if married to a U.S. citizen.
No universal GreenLight estimate. Use the official USCIS processing-time selector for the applicable field office.
Stage-by-stage breakdown
USCIS receives your N-400 and mails you a receipt notice. You can track the case online with your receipt number.
USCIS may reuse prior biometrics or schedule an appointment at a local Application Support Center for fingerprints, photo, and signature. Follow the notice or online account; not every N-400 applicant receives a new appointment.
USCIS sends a notice scheduling your naturalization interview and civics test at your local field office.
An officer reviews your application and administers the applicable English and civics tests. Your N-400 filing date controls: before Oct. 20, 2025 uses the 2008 civics test (100-question pool, up to 10 asked, 6 correct to pass); on or after Oct. 20, 2025 uses the 2025 test (128-question pool, up to 20 asked, 12 correct to pass).
USCIS may grant, continue, or deny the application. If granted at the interview, you may be scheduled for an oath ceremony the same day; otherwise, follow the written decision or oath notice.
You attend an oath ceremony, recite the Oath of Allegiance, and receive your Certificate of Naturalization. You are now a U.S. citizen.
Key things to know
- 1N-400 fees differ by filing method and eligibility for a reduced fee or waiver. Age alone does not create a blanket filing-fee exemption. Verify current Form G-1055 before filing.
- 2The 3-year naturalization path has several conditions: you generally must have been an LPR for 3 years, been married to and living with the same U.S. citizen spouse for those 3 years, and that spouse must have been a U.S. citizen for those 3 years. Confirm all current eligibility rules before filing.
- 3An absence of more than 6 months but less than 1 year creates a rebuttable presumption that continuous residence was broken; an absence of 1 year or more generally breaks it unless a specific preservation rule applies. Multiple shorter trips can also matter.
- 4Physical presence means you must have been physically inside the U.S. for at least half of the required period (30 months of the 5-year requirement, or 18 months of the 3-year requirement).
- 5There is no universal oath-ceremony clock. Follow the interview result, online account, and oath notice for case-specific scheduling.
- 6Do not assume a pending N-400 alone is proof of current LPR status. Use the exact evidence USCIS provides, such as a receipt notice that states an extension or an ADIT stamp, and follow the notice-specific instructions.
- 7Certain trips abroad and criminal history can affect eligibility. Consult an immigration attorney if you have either.
Frequently asked questions
Statuses to watch
When your N-400 moves through stages, you may see these status updates on my.uscis.gov. Click any to learn what it means.
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Decode your status update →GreenLight is an independent tool and is NOT affiliated with USCIS, DHS, or any U.S. government agency. Nothing on this page constitutes legal advice. Timing depends on the filing category, office, notices, and case-specific facts. Always consult a licensed immigration attorney for advice specific to your situation. Verify all information at uscis.gov.