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Definition

N-400

Application for Naturalization — the U.S. citizenship application.

Form N-400 is used by LPRs to apply for U.S. citizenship. The current filing fee is $760 (online) or $760 (paper, as of 2024 fee rule). Applicants must prove continuous residence, physical presence, good moral character, English, and civics knowledge.

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Not legal advice. Definitions are provided for educational use. For case-specific guidance, consult a licensed immigration attorney.