Naturalization (N-400)
Citizenship
Naturalization is the path from green card to citizenship, on Form N-400. Most people qualify after five years as a permanent resident, with the civics and English tests at the interview. The free calculator shows your 90-day early filing window.
N-400 early filing calculatorThe civics test
The forms
The application for naturalization — the form that takes a green card holder to citizenship.
How it works
In English, Spanish, or Portuguese. The software puts your answers on the official USCIS forms.
Your evidence is sorted into a numbered exhibit index, and every field, signature, and document is checked for completeness.
Download the assembled packet and file it yourself — or have an independent licensed attorney review and file it for you.
Pricing
Your exact technology fee depends on your petition type and is shown during the free eligibility check, before you pay anything. USCIS filing fees are set by the government and paid by you directly to USCIS.
Questions
Naturalization (Form N-400) is for green card holders — generally after five years, or three if married to a U.S. citizen. The free N-400 early filing calculator shows your 90-day early window.
Part of the naturalization interview: an officer asks you civics questions out loud, and you answer. Our civics test guide explains which version you take. To study, the free practice tool works three ways.
Yes — the N-400 is a self-help petition here. You answer simple questions, the software puts your answers on the official form, and every field, signature, and document is checked before your packet is marked ready.
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Naturalization (N-400)