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Your application for Citizenship will be processed by United States Citizenship and Immigration Services (USCIS). The application you submit will provide USCIS with background information about you and shows that you are eligible to apply. Please ensure that you have completed the steps below:

  1. Fill out Form N-400 application for naturalization. Ensure that all responses are complete,
  2. Gather all the documents you need, and make copies of them for the application packet,
  3. Also include:
  • Two identical color, passport-style photographs. Write your name and Alien Registration Number (A#, or the nine-digit Permanent Resident Card number) lightly in pencil on the back of each photo.
  • A check or money order to cover the application and fingerprinting fee ($680, but $595 if you are 75 or older). Write your “A#” on the back.

Remember to make a copy of your application. Do not send original documents with your application unless it is stated that an original is required. Always make copies of all materials you send to USCIS.


Texas residents should mail their application packets to:

P.O. Box 660060
Dallas, TX 75266


For Express Mail or courier deliveries, use the following address:


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

USCIS will mail you a receipt once it receives your application.


Submitting the application is just the beginning of the process of becoming a U.S. Citizen. Learn more about the next steps by clicking the button below.

Citizenship FAQ

To help you get ready to apply, attend an information session and/or contact a local organization.