Applying for U.S. citizenship is a major step, and the Form N‑400, Application for Naturalization is the official document you need to submit to U.S. Citizenship and Immigration Services (USCIS). Our fillable PDF version lets you complete the form quickly, accurately, and without any extra software.
A fillable PDF provides real‑time validation, automatic date formatting, and easy navigation between sections. You can save your progress, edit fields, and download a clean, printable version ready for your signature.
Instead of downloading the PDF and opening it in a separate editor, simply click the "Fill out this form" button on this page. The Formize PDF Filler app will load in your browser, and you can start entering your information immediately.
After you have filled out the form, download the final PDF, print it, sign it by hand, and mail it to the USCIS Lockbox address listed in the form instructions. You can also submit the form electronically through the USCIS online account if you prefer.
Need more guidance? Review the official USCIS instructions linked at the bottom of the form or consult an immigration attorney.
Yes. The official USCIS N‑400 PDF is fillable, and Formize makes it even easier by providing an online filler that works in any browser.
No. The Formize PDF Filler runs entirely in your web browser—no plugins or downloads required.
Yes. While using Formize, you can export a partially completed PDF, reload it later, and continue where you left off.
USCIS requires a handwritten signature on the final printed form. After filling it out online, print, sign, and mail it.
If you discover an error after download, simply go back to the Formize filler, correct the field, and download a new PDF.
The time varies per applicant, but the fillable PDF helps you avoid delays caused by missing information or formatting errors.
USCIS allows electronic filing through their online account system. The PDF you download can be uploaded directly if you choose that route.
Formize offers a free basic filler for this form; no additional fees are charged for filling out or downloading the PDF.
Με το παραδοσιακό σύνολο λειτουργιών για την προβολή και τη συμπλήρωση ενός εγγράφου PDF, σε συνδυασμό με τα πλεονεκτήματα μιας εφαρμογής ιστού και την αποκριτική διάταξη, μπορείτε να ολοκληρώσετε το US citizenship application form μέσα σε λίγα λεπτά.
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