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N-400 filing fee

Application for Naturalization — Citizenship (naturalization). Current USCIS filing fee, the online-vs-paper difference, and the other forms usually filed with it.

Filed online

$710

$50 cheaper than paper

Filed on paper

$760

General filing.

Situations with a different fee

Reduced fee — household income 150–400% of the Federal Poverty Guidelines (paper only)

$380

These reduced or waived fees apply only if you meet the stated condition. Claiming one you do not qualify for is a rejection reason, not a discount.

Fees shown are taken from USCIS Form G-1055, edition 05/29/26, verified by hand on 2026-07-11. USCIS changes fees without notice — confirm your exact total at the official USCIS fee calculator before you file. Filing fees only: they exclude attorney fees, premium processing, and Department of State fees.

A rejected package costs you this fee and the wait

USCIS returns a rejected filing with the fee — but you lose the months you already waited, and priority dates and status gaps do not pause while you refile. FormGuard checks a completed N-400 against the rejection reasons USCIS actually applies, before you mail it.

Check my N-400 — $39 Add up a full package

What N-400 is for

The application to become a U.S. citizen through naturalization.

Green card holders who meet the residence, physical-presence, and good-moral-character requirements (generally after 5 years, or 3 years if married to a U.S. citizen).

Paper or online?

Filing N-400 online costs $710 against $760 on paper — a $50 difference. Online filing also confirms receipt immediately and removes the risk of mailing to a superseded address. Not every applicant or category is eligible to file online; check the official form page below.

Official USCIS page for N-400 → · Where do I file it?

Filing fees only — they do not include attorney fees, premium processing, or fees collected by the Department of State. USCIS updates this schedule frequently. Always confirm your exact total at the official USCIS fee calculator before you file. FormGuard is an independent service and is not affiliated with USCIS or the U.S. government.