N-600

Certificate of citizenship (N-600)

Claim U.S. citizenship acquired at birth through a U.S. citizen parent.

This guide explains what the form is — not whether you should file it. Only a licensed attorney or BIA-accredited representative can advise you on eligibility.

Form N-600 is the application to obtain a Certificate of Citizenship documenting that you are a U.S. citizen by birth or through a U.S. citizen parent.

Individuals born abroad who claim citizenship through a U.S. citizen parent, or who derived citizenship automatically through a parent's naturalization, may file this form. USCIS determines eligibility — this guide does not.

Government filing fee

Approximately $1,170 (see uscis.gov for current fee; reduced fee available for some military families)

Fees may change. Always verify the current fee at uscis.gov before filing.

Government fees are paid directly to USCIS, not to Reunite Assure. Verify current fees at uscis.gov before filing.

Typical processing time

Varies widely — typically 12–24 months. Estimate only.

Processing times are estimates only and are not guaranteed.

Documents typically required

Proof of U.S. citizen parent's citizenship (passport, naturalization certificate, or birth certificate)
Your foreign birth certificate
Evidence of your parent's residence or physical presence in the U.S.
Proof of the parent-child relationship
Additional documents per USCIS instructions

Requirements vary depending on how you claim citizenship (birth, derivation, or acquisition). Review the official USCIS instructions carefully.

Reunite Assure software fee

Self-Prep

$235

Complete

$385

Official USCIS page

uscis.gov/n-600

Guided filing coming soon.

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