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N-400 early filing calculator

USCIS lets you file Form N-400 up to 90 calendar days before you complete your continuous-residence requirement — five years as a permanent resident, or three if you've been married to and living with a U.S. citizen the whole time. The clock runs from the “Resident Since” date printed on your green card. Enter that date and this page computes both earliest-filing dates.

General information, not legal advice — verify against your own documents and the official sources below.

The timeline, computed

Worked example — a green card whose Resident Since date is June 10, 2021 produces this timeline (matching the example in USCIS's own policy manual, where a June 10 anniversary gives a March 12 earliest filing date):

  1. Earliest filing — 3-year rule

    897 days ago

    Tuesday, March 12, 2024

    Only if you've been married to (and living with) a US citizen the whole time.

  2. Earliest filing — 5-year rule

    167 days ago

    Thursday, March 12, 2026

    The standard path: N-400 can be filed 90 days before your 5-year mark.

  3. 5-year continuous-residence mark

    77 days ago

    Wednesday, June 10, 2026

    The anniversary of the “Resident Since” date on your green card.

Knowing the dates is the easy part.

Sureday guards them: push, email — and if you don't confirm, texts, phone calls, and a person you trust. One click turns this timeline into a guarded reminder.

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The 90-day rule, precisely

The anniversary that matters is the date you became a lawful permanent resident — printed on your card as “Resident Since.” USCIS's guide illustrates it directly: a card that reads July 4, 2006 meets the five-year requirement on July 4, 2011. The early-filing provision then lets you submit N-400 up to 90 calendar days before that anniversary.

Filing more than 90 days early is not a small mistake: an application filed before the window opens can be denied — not just returned — and the filing fee is not refunded. USCIS publishes an official early-filing calculator; check your date against it before you file.

Note what early filing does and does not do: it lets your application start processing sooner, but you must still meet every requirement (including continuous residence and physical presence) by the time of your interview and oath.

The two paths

The standard path requires five years of continuous residence as a permanent resident. The three-year path requires three years — but only if you have been married to and living in marital union with a U.S. citizen for that entire period, and your spouse has been a citizen the whole time. This calculator shows the earliest filing dates for both; which one applies to you depends on facts a calculator cannot verify.

Trips outside the United States matter twice: long absences can break continuous residence, and total days abroad count against the physical-presence requirement. Keep a list of every trip — the N-400 asks for it.

Questions people actually ask

What happens if I file N-400 more than 90 days early?

USCIS can deny the application rather than reject it, and the fee is not returned. The 90-day provision is measured against your continuous-residence anniversary — compute it carefully and verify with USCIS's official early-filing calculator.

Which date on my green card do I count from?

The “Resident Since” date — the day you became a lawful permanent resident. It is printed on the front of the card. Your card's expiration date is irrelevant to naturalization timing.

Does the 90-day early filing apply to the 3-year marriage path too?

Yes. Whether your requirement is five years or three, you may file up to 90 calendar days before completing it. The marriage-based path has its own conditions — married to, and living with, a U.S.-citizen spouse throughout the period.

Does filing early make my citizenship come faster?

It starts the queue sooner, which can help, but every requirement must still be met by interview and oath. Early filing is about not wasting the 90 days — it does not shorten processing itself.

Is this calculator legal advice?

No — it does date arithmetic on the number you enter, using USCIS's published rule, and links the official sources. Eligibility has requirements no calculator can assess; when in doubt, ask an attorney or an accredited representative.

Sources

Written and maintained by Sureday. Every rule on this page was verified against the sources above on August 26, 2026; when the rules change, this page changes. Not legal advice.

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