Government forms

Form N-400: Application for Naturalization

Application for U.S. citizenship for lawful permanent residents who meet residence, physical presence, good moral character and English and civics requirements.

Edition 01/20/25

Source: U.S. Citizenship and Immigration Services (USCIS)

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Instructions for filling out Form N-400: Application for Naturalization

This template is used for official filing and documentation. Below are detailed instructions for completing, requirement details, and submission rules.

Who needs to fill out this document?

This form is designed for use by legal entities, individuals, or authorized representatives in the following cases:

Permanent residents with five years of residence.
Permanent residents married to U.S. citizens for three years.
Military service members and veterans.

What you will need before starting

Before filling out the interactive form, prepare the following details and documents:

1. Green cardCopy of front and back of your permanent resident card.

2. Residence historyAddresses, employment and every trip outside the U.S. in the statutory period.

3. Marital and family informationCurrent and past marriages, children.

4. Background answersCriminal history, taxes, selective service and other eligibility questions.

Step-by-step filling process

Check eligibility: Use the early filing calculator; you can file up to 90 days before reaching the residence period.
Complete all parts: Personal, residence, travel and moral character questions.
Attach documents: Green card copy and extra documents if questions require them.
File and prepare for interview: Attend biometrics and the interview with English and civics tests.

Frequently Asked Questions (FAQ)

How long must I be a permanent resident?

Generally 5 years, or 3 years if married to and living with a U.S. citizen.

Can I file online?

Yes. Online filing is available for most applicants and lets you upload evidence and track your case.

How much is the filing fee?

Fees change periodically. Check the current amount on the USCIS Fee Schedule (Form G-1055) or the form's page at uscis.gov before you pay.

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