Interview Questions
Prepare for common naturalization interview questions in plain English.
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Practice for Your N-400 Citizenship Interview
Simple study tools to help you prepare for the civics test, reading and writing practice, and common naturalization interview questions.
Independent study resource. Not affiliated with USCIS or any government agency.
Everything You Need to Study in One Place
Start with the free practice test, then use focused tools for civics, interview prep, reading, and writing.
Civics Test Practice
Take a 20-question practice test with random civics questions and instant answer review.
Take the TestN-400 Interview Prep
Review common naturalization interview questions in plain English so nothing catches you off guard.
Prep for InterviewReading Practice
Build confidence with short sentences drawn from the official USCIS reading vocabulary list.
Practice ReadingWriting Practice
Drill simple sentences from the official writing vocabulary list so the test feels familiar.
Practice WritingWhy We Built This
Citizenship Study Should Be Easier to Navigate
Preparing for the N-400 interview can feel scattered. Information is spread across government pages, PDFs, videos, and random advice online. N400Test.com brings the core study experience into one clean, simple place.
This website is for study support only. It does not provide legal advice and does not replace official USCIS information.
Study areas
Focused Practice for Each Part of the Process
Start here
Take the Free N-400 Practice Test
Answer 20 random civics questions, see if you pass with 12 correct, and know what to study next. No account required.
Reading Practice
Build confidence with short sentences and vocabulary used in the test.
Start ReadingWriting Practice
Practice simple sentences so the writing portion feels familiar.
Start WritingNew · Free · 100% private
Sit across from the officer before your real interview
Most tools quiz you on civics. This one puts you in the room. Take the oath, get questioned on your application one item at a time, then face the civics, reading, and writing tests and hear the officer's decision. Realistic, and tough on purpose.
- An officer who questions every answer
- 20-question civics test, 12 to pass
- No typing, nothing saved or sent
Start the mock interview
Free. No account, no sign-up.
Free · Private · No sign-up
Tools and calculators for every step
Work out when you can apply, what to bring, what it costs, and what happens to your old citizenship. Each one runs entirely in your browser, with nothing saved or sent.
Eligibility Calculator
When can you apply? Estimate your eligibility date from your green card date.
Open90-Day Filing Calculator
The exact earliest date you can file Form N-400 without getting rejected.
OpenContinuous Residence Calculator
Add your trips and see whether any of them break your continuous residence.
OpenDocument Checklist Generator
Answer a few questions and get a printable list of what to bring to your interview.
OpenFee and Fee-Waiver Checker
See the current fee and whether you qualify for a reduced fee or a waiver.
OpenWill I Lose My Citizenship?
Find your country and see whether you can keep your original citizenship after you naturalize.
OpenFrom the Community
What People Are Saying
Thousands have used N400Test.com to prepare for their naturalization interview.
"Passed my interview on the first try. The civics practice was exactly what I needed."
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Maria G.
Houston, TX
"Cleanest study tool I found. No clutter, just the questions that actually matter."
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Ahmed K.
Brooklyn, NY
"I studied 15 minutes a day for a month and felt completely ready. Highly recommend."
LT
Linh T.
San Jose, CA
"The reading and writing practice helped me feel calm walking into the interview."
JR
Jorge R.
Miami, FL
"Simple, clear, and free. Wish I had found this site sooner in my prep."
FA
Fatima A.
Dearborn, MI
"Finally a place that doesn't overwhelm you with PDFs. Just practice, then pass."
DO
Daniel O.
Chicago, IL
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