USCIS describes naturalization as roughly ten steps. Here is the full path from confirming eligibility to taking the Oath of Allegiance — with the right CivicsPrep tool linked at each step.
Check the green-card time, continuous residence, physical presence, good moral character, and age requirements in the eligibility guide, then use the N-400 Eligibility Date Calculator to find your earliest filing date and estimate your physical presence.
Long trips abroad, arrests, or unpaid taxes/child support can affect continuous residence and good moral character. Sort these out — and talk to an attorney if needed — before you file.
File online or by mail using the current edition of Form N-400. See Forms, Fees & Processing Times for the related forms and where to confirm the fee. You can file up to 90 days before you complete your residence period.
Typical documents: a copy of your green card, your travel history, marriage/divorce records (for the 3-year rule), and anything USCIS requests. Our interview checklist lists what to collect and bring.
Pay the filing fee (and biometric fee, if applicable). If you can’t afford it, you may qualify for a reduction or waiver — see Forms & Fees.
USCIS schedules a short appointment to take your fingerprints and photo for background checks. (Some applicants are exempt or reuse prior biometrics.)
A USCIS officer reviews your N-400 and administers the tests. Rehearse the experience with our 3D Interview Simulator, and bring everything on the interview checklist.
You answer up to 10 of the 128 civics questions (most applicants must get at least 6 right) and show basic English reading, writing, and speaking. Prepare with flashcard study, a full practice test, and timed/exam modes. For the English test, practice with our Reading & Writing tool (built from the official USCIS vocabulary), and rehearse the spoken portion in the interview simulator.
USCIS grants, continues (asks for more), or denies your case. A "continued" case usually means a second interview or more evidence.
If approved, you take the oath at a ceremony and receive your Certificate of Naturalization — you are now a U.S. citizen.
Everything you need to prepare, in one place: study the 128 civics questions, take a practice test, rehearse the interview in 3D, find your filing date, print your interview checklist, and keep up with USCIS news & alerts.
Study all 128 questions and check exactly when you can file the N-400.
