N-400 early filing calculator
Find the earliest date you can send Form N-400, the application for US citizenship. Enter the resident since date from your green card and choose your path. The calculation happens in your browser: nothing you enter is saved or sent anywhere.
Enter your resident since date to see your dates.
Get ready for the civics test
After you file, the naturalization interview includes a civics test. Practise free with the official USCIS questions for the 2025 version of the test, with mock tests that follow the official rule.
How the 90-day early filing rule works
You do not have to wait for the exact day you complete 5 years (or 3 years) as a permanent resident. USCIS lets you file Form N-400 up to 90 days before the date you would first meet the required period of continuous residence.
USCIS counts back 90 days from the day before that date. Its own example: if you would first meet the requirement on June 10, 2010, the count starts on June 9, 2010, and the earliest you can file is March 12, 2010. This calculator follows the same count.
Filing early does not make you a citizen early. USCIS says you are not eligible for naturalization until you have actually reached the full 5 or 3 years of continuous residence, even if your application is in and you have been interviewed.
The two paths
- 5 years: the general path. You need 5 years of continuous residence in the United States after becoming a permanent resident.
- 3 years: for the spouse of a U.S. citizen. You need 3 years of continuous residence as a permanent resident, and you must have been living in marital union with your spouse for those 3 years, while your spouse was a U.S. citizen. The 90-day early filing rule applies to this path too, and USCIS says every other requirement must be met at the time you file.
Other requirements still apply
The date above only covers the waiting period. USCIS also looks at your time inside and outside the United States, among other requirements:
- Continuous residence. A trip abroad of more than 6 months but less than 1 year is presumed to break continuous residence, and a trip of 1 year or more breaks it. See USCIS Policy Manual, Continuous Residence.
- Physical presence. On the 5-year path you need at least 30 months (913 days) physically in the United States; on the 3-year path, at least 18 months (548 days). See USCIS Policy Manual, Physical Presence.
Long trips can move your dates later than this calculator shows. Check the full rules on the USCIS Form N-400 page before you file.
Sources
Independent tool, not affiliated with USCIS. The rule is described from the USCIS Policy Manual and the dates are calculated by Capxule. A green card dated February 29 is counted to March 1 in years without February 29. Your own eligibility depends on your full history, so check with USCIS before you file.