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How much does the N-400 application cost in 2026?

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Current N-400 filing costs, when reduced-fee or fee-waiver options may apply, and how to avoid payment mistakes.

Current N-400 filing costs, when reduced-fee or fee-waiver options may apply, and how to avoid payment mistakes.
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Naturalization is an investment, but USCIS does offer lower-cost options for some applicants. Here is the basic fee picture to know before you file.

Current N-400 filing fee

According to USCIS, the standard filing fee is:

  • $710 if you file online
  • $760 if you file by paper

Reduced fee option

USCIS also allows some applicants filing by paper to request a reduced N-400 fee of $380 if their documented household income is below 400% of the Federal Poverty Guidelines.

This is not the same as a fee waiver. USCIS explains the reduced-fee request on the N-400 filing page and in its reduced-fee guidance.

Full fee waiver

If you qualify for a full fee waiver, USCIS says you should file:

  • A paper Form N-400
  • A properly completed Form I-912 or written fee-waiver request
  • Supporting financial documentation

Fee-waiver eligibility is commonly tied to very low income or certain means-tested benefits. Always review the latest USCIS poverty-guideline page before filing.

Important detail: online filing is not available for reduced-fee or fee-waiver requests

If you are asking for a reduced fee or full fee waiver, you generally need to file by mail, not through the online account system.

Other costs to plan for

The filing fee is usually the biggest expense, but you may also spend money on:

  • Copies and printing
  • Transportation to biometrics and the interview
  • Tax transcripts or replacement documents
  • Study tools, if you want extra practice support

How to avoid fee mistakes

  • Use the USCIS N-400 page before sending payment
  • Review the USCIS poverty guidelines if you think you qualify for a lower amount
  • Double-check whether you are filing online or by paper
  • Make sure your form is signed and complete so USCIS does not reject it for avoidable reasons

Is it worth it?

For many families, yes. Citizenship can mean voting rights, easier family sponsorship options, a U.S. passport, and freedom from future Green Card renewals.

CiudadanoUSA includes free study tools so you can start preparing before your interview without adding another big expense. Download it here.