CITIZENSHIP ELIGIBILITY — APRIL 2026

When Can I Apply for U.S. Citizenship? Find Your Exact Filing Date

Most green card holders can apply after 5 years. If married to a U.S. citizen, after 3 years. You can file up to 90 days early. Here is how to calculate your exact date in under 60 seconds.

CONFIRM YOUR DATE — START $49

HOW DID YOU GET YOUR GREEN CARD?

Your eligibility path determines your timeline. Select yours below.

PATH 1 — MOST COMMON
Standard 5-Year Rule — Employment, Family, Lottery, or Other

You must have been a lawful permanent resident for at least 5 years AND been physically present in the U.S. for at least 30 months of those 5 years AND had no single trip outside the U.S. of 6 months or more.

HOW TO CALCULATE YOUR DATE
Step 1 — Find your Resident Since date on the front of your green card
Step 2 — Add 5 years to that date = your eligibility date
Step 3 — Subtract 90 days from your eligibility date = your earliest filing date
Example: Resident Since July 1, 2021 → Eligibility date July 1, 2026 → Earliest filing date April 2, 2026
PATH 2 — MARRIAGE-BASED GREEN CARD
3-Year Rule — Married to a U.S. Citizen

You must have been a lawful permanent resident for at least 3 years AND been married to and living with the same U.S. citizen for those 3 years AND your spouse must have been a U.S. citizen for those 3 years AND been physically present in the U.S. for at least 18 months of those 3 years.

HOW TO CALCULATE YOUR DATE
Step 1 — Find your Resident Since date on the front of your green card
Step 2 — Add 3 years to that date = your eligibility date
Step 3 — Subtract 90 days = your earliest filing date
Example: Resident Since July 1, 2023 → Eligibility date July 1, 2026 → Earliest filing date April 2, 2026

Full requirements for the 3-year path: citizenship through marriage guide →

PATH 3 — MILITARY SERVICE
Military Naturalization — Different Rules Apply

Military naturalization rules under INA 328 and INA 329 differ significantly from civilian paths — some service members can naturalize without any residency waiting period. Do not use the 5-year or 3-year calculation above if you served in the U.S. military.

See USCIS military naturalization rules → uscis.gov/military

EXAMPLE FILING DATES — 5-YEAR RULE

Resident Since Date5-Year AnniversaryEarliest Filing DateStatus Now
January 1, 2019January 1, 2024October 3, 2023✅ Eligible now
July 1, 2020July 1, 2025April 2, 2025✅ Eligible now
January 1, 2021January 1, 2026October 3, 2025✅ Eligible now
July 1, 2021July 1, 2026April 2, 2026✅ Eligible now
January 1, 2022January 1, 2027October 3, 2026⏳ Not yet
July 1, 2022July 1, 2027April 2, 2027⏳ Not yet

WHERE TO FIND YOUR RESIDENT SINCE DATE

The Resident Since date is printed on the front of your green card, below your A-Number (Alien Registration Number). It is labeled "Resident Since" followed by a date in MM/DD/YYYY format.

Common confusion: This is NOT the date you received the card in the mail, NOT the date printed on the back of the card, and NOT the date on your immigrant visa. It is the specific "Resident Since" field — the official date USCIS uses for all eligibility calculations.

If your Resident Since date is blank or shows "N/A": This sometimes happens with certain green card categories. Contact USCIS or consult an immigration attorney to determine your correct eligibility start date before filing.

FIVE THINGS THAT CAN PAUSE OR RESET YOUR CLOCK

01
A single trip outside the U.S. of 6 months or more — may break continuous residence. Trips of 6-12 months require evidence you maintained U.S. ties. Trips over 12 months generally reset the clock. If this applies to you, consult an attorney before filing.
02
Criminal conviction of any kind — affects the good moral character requirement. Even minor convictions during the statutory period can impact eligibility. Good moral character guide →
03
Failure to file U.S. taxes as a permanent resident — USCIS asks about tax compliance in Part 12 of the N-400. Unresolved tax issues should be addressed before filing. An IRS payment plan demonstrates good faith.
04
Not enough physical presence — you need 30 months inside the U.S. during the 5-year period, or 18 months during the 3-year period. Add up all days you were outside the U.S. and confirm you meet the threshold before filing.
05
Conditional green card with pending I-751 — if you have a 2-year conditional green card and your I-751 is still pending, you can file N-400 in most cases — but USCIS may not approve the naturalization until the I-751 is resolved. Full details on the marriage-based path →

READY TO FILE?

LEGALIAI confirms your eligibility date, walks through all 16 parts of the N-400, generates your document checklist, and prepares you for the 2026 civics test — in 8 languages for $49.

START YOUR N-400 — $49

ONCE YOU KNOW YOUR DATE — WHAT TO DO NEXT

Do not wait until your eligibility date to start. The N-400 takes most applicants several hours to complete accurately. The 2026 civics test requires studying 128 questions. And after you file, processing takes 6-10 months depending on your field office.

The applicants who have the smoothest experience are the ones who started preparing months before they were eligible — not the day they filed.

FREQUENTLY ASKED QUESTIONS

If my green card start date is in 2021 — can I file now? +
It depends on the exact date. If your Resident Since date is on or before July 18, 2021, you could already be within your 90-day early filing window for the 5-year rule (your eligibility date would be on or before July 18, 2026, and your earliest filing date would be on or before April 19, 2026 — today). Use the calculation above with your exact date.
What if I file exactly 90 days before my eligibility date? +
Filing on day 90 before your anniversary is fine — USCIS allows this. The safest approach is to count 90 calendar days back from your anniversary date and file on or after that date. Filing even one day before the 90-day window results in rejection.
Do I need a lawyer to calculate my eligibility date? +
No — for straightforward cases with no extended travel, criminal history, or prior immigration issues, the calculation is simple math using your Resident Since date. LEGALIAI confirms your eligibility as part of the onboarding process and calculates your earliest filing date automatically.

This page provides general eligibility information only. Individual circumstances including travel history, criminal record, and tax compliance may affect your eligibility. Consult a licensed immigration attorney if your situation is complex. LEGALIAI is a preparation tool, not a law firm.