N-400 Citizenship Eligibility Check

Find out if you're ready to apply for U.S. naturalization

Who Can Apply for Citizenship?

  • Be at least 18 years old
  • Be a permanent resident (green card holder)
  • Have held your green card for 5 years (or 3 years if married to U.S. citizen)
  • Meet continuous residence and physical presence requirements
  • Be able to read, write, and speak basic English

Our eligibility check covers:

  • Your eligibility path (3-year vs 5-year)
  • Earliest filing date (90-day early filing window)
  • Continuous residence requirements
  • Physical presence calculation
  • Potential red flags (trips abroad, tax issues, criminal history)
  • Required documents for your situation

Frequently Asked Questions

You're generally eligible if you've been a green card holder for 5 years (or 3 years if married to a U.S. citizen), meet residence requirements, and have good moral character. Our free check evaluates all requirements.

The 3-year path is for green card holders married to U.S. citizens who have lived together for 3 years. The 5-year path is for all other green card holders.

You can file up to 90 days before you meet the residence requirement. Our calculator shows your exact earliest filing date.

Trips under 6 months generally don't cause issues. Trips over 6 months may break continuous residence. Trips over 1 year almost always do. Our check identifies potential problems.

Most straightforward cases don't require a lawyer. Immiva guides you through the process for $49. If our check identifies complex issues, we'll recommend consulting an attorney.

Immiva Logo

971 US Highway 202N

Suite #8187

Branchburg, NJ 08876


Disclaimer: Simple Immi LLC dba Immiva is not a lawyer or a law firm and does not engage in the practice of law, provide legal advice, or offer legal representation. The information, software, services, and comments on this site are for informational purposes only and address issues commonly encountered in immigration. They are not intended to be a substitute for professional legal advice. Immiva is not affiliated with or endorsed by the United States Citizenship and Immigration Services (USCIS) or any other government agency. Your use of this site is subject to our Terms of Use.

Copyright © 2026 immiva.com (Simple Immi LLC dba Immiva)

Featured on Twelve ToolsImmiva - Featured on Startup Fame