By Priya Raman, Contributing Writer, Policy & Regulation
Updated July 2, 2026
Updated July 2, 2026
Results, explained
Take a green card date of June 1, 2019 under the 5-year rule, the calculator's stand-in example. USCIS requires 5 years as a permanent resident before you can naturalize, which lands the anniversary on June 1, 2024. USCIS then lets you file up to 90 days before that anniversary, which moves the earliest filing date back to March 3, 2024. That gap between "eligible" and "earliest you can file" is where most of the confusion in this process lives: you are not eligible to file 90 days early in some looser sense, the regulation specifically carves out that window so USCIS can process your case around the anniversary date itself.
| Category | Required residence | Early filing window |
|---|---|---|
| 5-year rule (general) | 5 years as a permanent resident | 90 days before the anniversary |
| 3-year rule (married to a U.S. citizen) | 3 years as a permanent resident, married to and living with the same U.S. citizen throughout | 90 days before the anniversary |
Other requirements apply. This tool checks only the time-as-resident threshold. Continuous residence, physical presence, good moral character, and English and civics ability are separate conditions Form N-400 requires you to meet independently.
More free tools from ImmigrationCalc
Check physical presence, continuous residence, and USCIS fees alongside your eligibility date.