Form N-600, Application for Certificate of Citizenship, is a USCIS form filed by individuals who acquired or derived U.S. citizenship through a parent and need official government documentation of that status. Filing Form N-600 is not a request to become a citizen — it is a request to prove citizenship that already exists under federal law. The resulting Certificate of Citizenship is valid for life and serves as legally recognized proof for passports, federal employment, and other government benefits.
Two categories of individuals are eligible to file Form N-600: those who acquired citizenship at birth abroad through at least one U.S. citizen parent, and those who derived citizenship automatically before age 18 after a parent naturalized while the child was a lawful permanent resident in parental custody. Applicants must currently reside in the United States, except military members and those applying under specific provisions. Children residing abroad must use the related Form N-600K instead.
Choosing the wrong eligibility category — acquired versus derived citizenship — is the most common reason N-600 applications are rejected or delayed, and USCIS will not refund the filing fee regardless of the outcome. Immigration Professional Association helps clients evaluate parentage records, confirm the correct legal pathway under the INA, and assemble the precise documentary evidence USCIS requires, reducing the risk of a Request for Evidence or outright denial on a non-refundable $1,385 filing fee.
Form N-600 covers two legal pathways that require different evidence packages. Acquisition applies to individuals born outside the U.S. to at least one citizen parent; derivation applies to those who automatically became citizens after birth when a parent naturalized while they were a lawful permanent resident under 18. Selecting the wrong category in Part 1 of the form triggers an automatic rejection by USCIS — not a correction notice — and the filing fee is non-refundable, making correct categorization essential before submitting.
The current USCIS filing fee for Form N-600 is $1,335 when submitted online or $1,385 for paper filing. No biometrics fee applies. Military members and veterans filing on their own behalf qualify for a full fee waiver; adopted children and children of veterans do not. Applicants experiencing financial hardship may separately request a waiver using Form I-912.
Form N-600 is exclusively for individuals who are already citizens by law and need documentary proof — it is not a naturalization application. Applicants who are lawful permanent residents seeking to become citizens must file Form N-400 instead. Filing the wrong form wastes the filing fee and delays the process significantly.
Before submitting your application, always confirm that you are using the most recent edition of the form available from USCIS.gov. Filing outdated forms may result in rejection.
Reviewing parentage documentation and immigration history to determine whether acquisition or derivation applies, and advising on the evidentiary requirements for the correct pathway. Average budget: $1,800–$3,500.
Completing all sections of Form N-600, compiling supporting evidence including birth certificates, parental citizenship proof, and custody documentation, and submitting a complete application package to USCIS. Average budget: $2,500–$5,000.
Obtaining certified translations of foreign-language documents required to support the N-600 application, including birth records, marriage certificates, and adoption decrees. Average budget: $500–$1,500.
Drafting a comprehensive response to a USCIS RFE issued after N-600 filing, gathering additional evidence and legal argument to satisfy the agency’s outstanding questions. Average budget: $1,500–$3,500.
Preparing the applicant or parent for any USCIS field office interview scheduled as part of N-600 adjudication, including document review and practice questioning. Average budget: $800–$1,800.
Filing a motion to reconsider or an appeal with the Administrative Appeals Office (AAO) following a denial of Form N-600, with supporting brief and evidence. Average budget: $2,500–$6,000.
In-depth legal analysis for cases involving adoption, out-of-wedlock birth, stepparent relationships, or multiple citizenship pathways under different versions of the INA — often necessary where the citizenship claim depends on laws that changed over time. Average budget: $2,000–$5,000.
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