Most N-400 applications are approved, but denials do happen. Knowing the common reasons helps you avoid them.
1. Continuous residence or physical presence problems
Spending too much time outside the U.S. can break the continuous-residence requirement. Track your trips carefully before applying.
2. Good moral character issues
Certain criminal records, lying on the application, or failing to disclose information can lead to denial. Honesty is essential — disclose everything and bring documentation.
3. Failure to pay taxes or child support
Owing back taxes or court-ordered child support can be treated as a moral-character concern. Get on a payment plan and bring proof.
4. Failing the English or civics test
Applicants who fail are usually given a second chance, but missing the re-test appointment can end the case. Practice thoroughly beforehand.
5. Selective Service registration
Most men who lived in the U.S. between ages 18 and 26 must have registered. Failing to do so can raise questions; bring any documentation you have.
6. Incomplete application or missing documents
Errors, blanks, or missing evidence cause delays and denials. Review your N-400 carefully and bring everything on the document checklist.
Practice now: Take the free US citizenship practice test or read every question in the most common civics questions.
This is an independent free study resource and is not affiliated with USCIS or the U.S. government, and is not legal advice. Always confirm current requirements at uscis.gov.
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