Naturalization · Form N-400

You've earned your place. Now make it permanent.

You've lived here, paid taxes, built a life. Form N-400 is how lawful permanent residents become U.S. citizens. CitizenKit prepares your complete naturalization application — correctly, on time, and ready to file.

Find Out If This Kit Is Right for YouSee How It Works
  • Built on official USCIS.gov guidance
  • File up to 90 days early
  • Civics study guide included
  • No attorney fees required

Do you have any criminal history?

This includes arrests where charges were dropped, dismissed cases, expunged records, minor misdemeanors, DUIs, and anything that resulted in a court appearance. If you have any criminal history of any kind, CitizenKit is not the right tool for your situation. Please consult a qualified immigration attorney before filing.

Eligibility

Six requirements. All must be met.

For most lawful permanent residents who have lived and worked here for five or more years, meeting these requirements is simply a matter of documenting what is already true.

  1. 1

    Lawful Permanent Resident for 5+ Years

    You must have been a lawfully admitted permanent resident for at least 5 years before filing. You may file up to 90 days before your 5-year anniversary.

  2. 2

    Continuous Residence in the US

    You must have maintained continuous residence in the United States for 5 years before filing. Short trips under 6 months generally do not disrupt this.

  3. 3

    Physical Presence: 30 Months

    You must have been physically present in the United States for at least 30 months (913 days) out of the 5 years immediately before filing.

  4. 4

    3 Months in Your Current State

    You must have lived in the state (or USCIS district) where you file for at least 3 months before filing.

  5. 5

    Good Moral Character

    USCIS reviews your character during the 5-year period before filing — and may look further back. This includes tax compliance, family obligations, and community involvement.

  6. 6

    English & Civics Knowledge

    You must demonstrate ability to read, write, and speak English, and pass the civics test at your naturalization interview.

The Process

From application to Oath of Allegiance

  1. 1

    Confirm You Meet All Six Requirements

    Naturalization has six requirements: (1) lawful permanent resident for 5+ years, (2) continuous residence, (3) 30 months of physical presence, (4) 3 months in your current state, (5) good moral character, (6) English and civics knowledge. CitizenKit walks you through each one.

  2. 2

    Complete and File Your N-400 Application

    Form N-400 is the only form in this application. It is detailed and covers your entire background, travel history, and character. CitizenKit pre-fills it from your questionnaire answers. You file by mail or online and pay the filing fee to USCIS.

  3. 3

    Biometrics Appointment

    After filing, USCIS schedules you for a biometrics appointment to collect your fingerprints and photo for a background check.

  4. 4

    Naturalization Interview & Civics Test

    A USCIS officer interviews you in English, reviews your application, and conducts the civics test orally — asking up to 20 questions from the 128-question bank. You need to answer 12 correctly to pass. CitizenKit includes a complete study guide.

  5. 5

    Oath of Allegiance Ceremony

    If USCIS approves your application, you attend an oath ceremony where you take the Oath of Allegiance to the United States. You receive your naturalization certificate and become a U.S. citizen at this moment.

The CitizenKit

One form. One path. Everything you need.

  • One Form. No Supplements.

    Form N-400 is the only form required. CitizenKit pre-fills every section from your questionnaire answers.

  • Civics Study Guide — All 128 Questions

    Complete study guide with every question and accepted answer from the official USCIS civics question bank.

  • Physical Presence Calculator

    A clear tool to calculate your days inside and outside the US across the 5-year period — so you know your numbers before you file.

  • Personalized Document Checklist

    Every document you need to gather for your specific situation — Green Card copy, tax returns, travel records, and more.

  • Organized, Mail-Ready Application

    Cover sheet, completed N-400, sign-here guide, and filing instructions — ready to submit to USCIS.

  • Interview Preparation Guide

    What to expect at the naturalization interview, how to answer questions clearly, and how to approach the English test.

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FAQ

Common questions about naturalization

How early can I file my N-400?
You can file up to 90 calendar days before your 5-year anniversary as a permanent resident. This is commonly called the "early filing" window. For example, if you became a permanent resident on June 1, 2020, you can file as early as March 3, 2025 — 90 days before June 1, 2025.
What is the civics test and how do I prepare?
The civics test is an oral exam given at your naturalization interview. A USCIS officer asks questions from a pool of 128 civics questions about U.S. history and government. You must answer 12 of 20 questions correctly to pass. CitizenKit includes a complete civics study guide with all 128 questions so you can prepare thoroughly.
What is "continuous residence" and does travel abroad affect it?
Continuous residence means you have maintained your primary residence in the United States throughout the statutory period. Trips abroad of less than 6 months generally do not disrupt continuous residence. Trips of 6–12 months may require you to show evidence of your ongoing ties to the US. Trips of more than 12 months can disrupt continuous residence. CitizenKit walks you through how to calculate your absences.
Do I need to disclose criminal history on the N-400?
Yes. Form N-400 asks about arrests, charges, and convictions — including cases that were dismissed, expunged, or where charges were dropped. Even sealed or expunged records must be disclosed. If you have any criminal history of any kind, CitizenKit is not the right tool for your situation — please consult a qualified immigration attorney before filing.
What happens after I pass the interview and civics test?
If USCIS approves your N-400 at or after the interview, you will be scheduled for an Oath of Allegiance ceremony. At the ceremony, you take the oath, surrender your Green Card, and receive your naturalization certificate. After that, you can apply for a U.S. passport.

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