Form N-400 is the application for naturalization. The filing should be prepared only after confirming eligibility and reviewing facts that may create risk.
Informational content only. Immigration rules, fees, forms, and agency timing can change.
Eligibility review
The eligibility review should cover length of permanent residence, physical presence, continuous residence, good moral character, English/civics testing, and oath eligibility.
Documents to organize
Applicants should organize identity documents, green card, travel history, tax records, marital records, and records related to arrests, citations, or prior immigration issues.
Common questions
How early can I file N-400?
Some applicants may file up to 90 days before completing the required permanent residence period, but eligibility depends on the full facts.
What happens if USCIS finds a problem from years ago?
USCIS can ask questions about prior immigration history. Some issues may affect eligibility or create broader risk, so review before filing.
Next step
Talk through your situation with an attorney.
Immigration outcomes depend on your history, timing, and evidence. Gather relevant documents before contacting us so the conversation can be more useful.