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Citizenship

N-400: Application for Naturalization

Form N-400 is how a green card holder applies to become a U.S. citizen. Most people can file after 5 years as a resident, or 3 years if married to a citizen. It includes biometrics, an interview, and English and civics tests.

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Typical steps of an N-400

  1. Receipt notice
  2. Biometrics
  3. Interview and civics test
  4. Decision
  5. Oath ceremony
  6. Naturalization certificate

Official USCIS form page ↗

How long does it take?

13 to 14 months

USCIS published processing times (median to 93% of cases). Typical ranges, never an exact date.

Intake

Biometrics

Review

Evidence (RFE/NOID)

Interview and oath

Decision

Closed case

Administrative

Frequently asked questions

What is Form N-400?

Form N-400 is how a green card holder applies to become a U.S. citizen. Most people can file after 5 years as a resident, or 3 years if married to a citizen. It includes biometrics, an interview, and English and civics tests.

How long does an N-400 take?

The typical range published by USCIS is 13 to 14 months. It is not an exact date.

AI-assisted explanation based on the official USCIS status, reviewed by CaseAlerta. Not legal advice. Times are typical ranges, never an exact date.