N-400 Citizenship


How do I File my N-400 Citizenship Application?

  1. Determine if you are eligible to apply for citizenship.

  2. Prepare Form N-400, Application for Naturalization.

  3. Complete your application.

  4. Collect the necessary documents.

  5. Send your application package and filing fee to the appropriate USCIS Lockbox Facility or Service Center.

  6. Receive an appointment letter for biometric (fingerprints) services from USCIS.

  7. Visit a USCIS biometrics location and have your biometrics taken.

  8. Receive an appointment for an interview with a USCIS Officer.

  9. Go to your local USCIS office at the specified time.

  10. Bring state-issued identification, Permanent Resident Card, and any additional documents specific to your case.

  11. Answer questions about your application and background.

  12. Take the English and civics tests.

  13. Await a decision on your case.


Where do I file the USCIS Form N-400?


It depends on where you live.

Either the Dallas Lockbox:

USCIS
Attn: N-400
2501 S State Hwy 121 Business
Suite 400
Lewisville, TX 75067

Or the Phoenix Lockbox:

USCIS
Attn: N-400
1820 E. Skyharbor Circle S
Suite 100
Phoenix, AZ 85034