START HERE - Type or print in black ink. If you do not answer all of the questions, it may take longer for U.S. Citizenship and Immigration Services (USCIS) to process your Form N-400.

If you answered "YES," but you did not register with the Selective Service System and are still under 26 years of age, you must register before you apply for naturalization, so that you can complete the …

Please refer to the instructions for the form(s) you are filing for additional information or you may call the USCIS Contact Center at 800 -375-5283. For TTY (deaf or hard of hearing) 800767- -1833.

Complete Form N-400, Application For Naturalization online with US Legal Forms. Easily fill out PDF blank, edit, and sign them. Save or instantly send your ready documents.

If your application is approved, you will be scheduled for a public oath ceremony at which time you will be required to take the following Oath of Allegiance immediately prior to becoming a naturalized citizen.

Dec 29, 2025 · Naturalization is the process of becoming a U.S. citizen if you were born outside of the United States. Use this form to apply for naturalization if you meet the eligibility requirements.

Nov 30, 2025 · Read the Form N-400 Instructions before you decide whether or not you would like to legally change your name.