Use this form to apply for U.S. citizenship.

Naturalization is the process to become a U.S. citizen if you were born outside of the United States. If you meet certain requirements, you may become a U.S. citizen either at birth or after birth. Check your eligibility.

To apply for naturalization to become a U.S. citizen, you must:

• Be at least 18 years of age at the time you file the application;
• Have been a lawful permanent resident for the past three or five years (depending on which naturalization category you are applying under);
• Have continuous residence and physical presence in the United States;
• Be able to read, write, and speak basic English;
• Demonstrate good moral character;
• Demonstrate a knowledge and understanding of U.S. history and government;
• Demonstrate a loyalty to the principles of the U.S. Constitution; and
• Be willing to take the Oath of Allegiance.

For detailed information and exceptions, including special provisions for those who have served in the U.S. military, please see Naturalization through Military Service.

Please use USCIS Naturalization Eligibility Tool in the Citizenship Resource Center for additional information.