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Becoming a citizen is a big step. The form is long.
The N-400 is the application for U.S. citizenship. It asks about the last five years of your life, and small mistakes can slow things down. We walk you through it in your language, one plain question at a time.
People in this situation commonly file the forms below. Choose what applies to you — when in doubt, consult a licensed attorney.
Forms people commonly file
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N-400
Application for Naturalization
U.S. Citizenship and Immigration Services
Government filing fee: $760
Packs that cover this moment
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U.S. Citizenship
Apply for naturalization with Form N-400.
1 form inside
Blank forms are always free from the agency that issues them. WhyFill charges a one-time fee to fill them in with you, in your language.