By Priya Narang
Partner, Employment Immigration · June 26, 2026
Applicants who fail N-400 interviews almost never fail the civics test. They fail on the "Have you ever" questions in Part 12, on continuous-residence math, or on inconsistency between the I-485 answers filed years ago and the N-400 answers filed today. These are the seven questions we brief every client on before the interview.
1. "Have you ever been arrested, cited, or detained by any law enforcement officer?"
The word is "ever." Traffic tickets, a 3am detention that ended with no charge, a fingerprint at a border crossing — all yes. A dismissed DUI from 15 years ago that you sealed under state law — yes on the N-400 (federal immigration record still shows it). Disclose everything with court records; USCIS finds the records anyway during the background check.
2. "Have you ever committed a crime for which you were not arrested?"
Rare yes-answer, but honesty matters — if you admitted something on your I-485 application 8 years ago and now say no, USCIS pulls the older application and denies for inconsistency. Match your prior answers exactly.
3. "Have you ever failed to file a required federal, state, or local tax return?"
USCIS considers unfiled returns a failure to demonstrate "good moral character." If you weren't required to file (below threshold, no U.S.-source income), be ready to explain why. If you should have filed and didn't, back-file NOW — before the interview — and bring proof.
4. "Have you ever claimed to be a U.S. citizen?"
This is the most damaging "yes" possible — it's a bar to naturalization and can trigger removal. Checking "U.S. Citizen" on a job application I-9 form counts. Voter registration, however inadvertent, counts. Getting talked into registering to vote at a DMV counts. If any of this has happened, DO NOT file N-400 without an attorney.
5. "Have you ever registered to vote in any federal, state, or local election?"
Same territory as #4. Even a mailed-in registration you never used is a yes. Some states auto-register at DMV — check your voter status before answering.
6. Continuous residence: 6+ month trips
USCIS asks about every trip outside the U.S. of 24 hours or more in the past 5 years (3 years for spouses of citizens). A single trip of 6 months or more triggers a presumption that continuous residence broke. Bring rebuttal evidence for any long trip: U.S. tax filings during the trip, unbroken lease, U.S. employment, family remaining in the U.S.
7. Physical presence math
You need 30 months of physical presence in the last 5 years (18 months in the last 3 for citizen spouses). Days in the U.S. count. Add up every trip you took, subtract, and produce the number BEFORE the interview. Don't let the officer discover you were short — file when you're actually eligible.
If you'd like to run your specific timeline through a checker before you file, our free Citizenship Eligibility tool covers residence, physical presence, continuous-residence breaks, and moral character. Book a consult if any of the flags come back yellow.
