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Early Filing Calculator

Find the earliest date you can send Form N-400, your application for U.S. citizenship. Your dates are calculated in your browser. Nothing is saved unless you choose to sign up below.

On your green card, next to “Resident Since.”

2. Which path applies to you?

Filing one day early gets your application rejected

USCIS will reject an N-400 that arrives before the earliest filing date, even by a single day. You lose the filing fee and have to start again. Check this date against your own records, and confirm it independently, before you send anything.

The USCIS example, worked through

First meets the 5-year requirement June 10, 2010
Counting starts the day before June 9, 2010
Earliest filing date, 90 days back March 12, 2010

Filing early does not make you eligible early

The 90-day rule shortens only the continuous residence clock. Every other requirement — physical presence, good moral character, residence in your state or district, English and civics — must still be met when you file, and you must still meet them at your interview.

USCIS retired its own Early Filing Calculator

The links to it in the N-400 instructions no longer work. That is why this tool exists.

This is not legal advice

This tool does math on a date. It does not know your situation. Speak with an immigration attorney about your own case.

Source: USCIS Policy Manual, Volume 12, Part D, Chapter 6.