Guide to becoming a U.S. citizen

Short, plain-language pages about the naturalization process. Each page links to the official USCIS source.

Who can apply

The main requirements for naturalization.

The N-400 steps

From filing your application to taking the oath.

Uploading documents

File types, the 12 MB limit, and iPhone photos.

Which civics test do I take?

The 2025 test or the 2008 test, by filing date.

Interview day

What to bring and what the officer will ask.

Exemptions and accommodations

The 50/20, 55/15 and 65/20 rules, and disability exceptions.

This guide is general information, not legal advice. Immigration rules, forms and fees change. For a decision about your own case, read the official USCIS citizenship pages or talk to an immigration attorney or a DOJ-accredited representative.