Forms › Form N-400
Fill out Form N-400, the Application for Naturalization, free in your browser. The official USCIS form opens here, you click each field and type your answers, then download the completed PDF. Nothing is uploaded to any server. No signup, no watermark.
Form N-400 is the U.S. Citizenship and Immigration Services (USCIS) application used by lawful permanent residents (green card holders) to apply to become naturalized U.S. citizens.
Click “Get form” — the official PDF opens in the editor, with no upload.
Click the highlighted fields and type your details. Everything stays on your device.
Save the completed form to your computer.
Lawful permanent residents (green card holders) who want to become U.S. citizens file Form N-400 with USCIS. Applicants must meet eligibility requirements such as a qualifying period of permanent residence; check USCIS guidance for the rules that apply to your situation.
Yes — completely free, with no signup and no watermark. You fill it in your browser and download it.
No. The form opens and is filled entirely in your browser. Nothing is uploaded, so your personal and financial details stay on your device.
Yes. This is the official, current Form N-400 published by the U.S. government, which is public domain. You fill the genuine document.