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Immigration·7 min read·Published February 14, 2026

Path to U.S. Citizenship: Naturalization Requirements and the Application Process

Who Is Eligible for Naturalization?

To apply for U.S. citizenship through naturalization, you must generally meet the following requirements:

  • Be at least 18 years old
  • Be a lawful permanent resident for at least 5 years (or 3 years if married to a U.S. citizen)
  • Have continuous residence in the U.S. for the required period
  • Have been physically present in the U.S. for at least 30 months out of the 5 years
  • Be a person of good moral character
  • Demonstrate knowledge of U.S. history and government (civics test)
  • Be able to read, write, and speak basic English

The N-400 Application Process

Step 1: File Form N-400

The N-400 is the Application for Naturalization. It asks detailed questions about your background, residence history, employment, travel outside the U.S., and moral character. Accuracy is critical.

Step 2: Biometrics Appointment

After filing, USCIS will schedule a biometrics appointment to collect your fingerprints and photograph for a background check.

Step 3: The Naturalization Interview

A USCIS officer will review your N-400 application and administer the English and civics tests. The civics test consists of 10 questions from a list of 100 possible questions. You must answer at least 6 correctly.

Step 4: Oath of Allegiance

If approved, you will attend a naturalization ceremony and take the Oath of Allegiance to the United States, receiving your Certificate of Naturalization.

Good Moral Character Requirement

Certain criminal convictions including aggravated felonies, drug offenses, and crimes involving moral turpitude can permanently bar you from naturalization. If you have any criminal history, consult with an immigration attorney before filing your N-400. At Jun Law Firm, we review your complete history and advise you on the safest path forward.

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