Application for Naturalization N-400

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.

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.

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