You must include all pages when you file Form N-400, even if the pages are blank.
Signature: USCIS will not accept a stamped or typewritten name in place of any signature on this application.
Eligibility box: Select only one box to identify the basis of your eligibility or your Form N-400 may be delayed or rejected.
A-Number: Provide your A-Number (if any), on the top right corner of each page.
Translation: If you submit a document with information in a foreign language, you must also submit a full English translation.
| Question | Answer |
|---|---|
| Form Name | Form N-400 |
| Form Length | 14 pages |
| Fillable? | Yes |
| Fillable fields | 488 |
| Avg. time to fill out | 60+ min |
| Edition | Rev 01/20/25 |
| Issuing agency | U.S. Citizenship and Immigration Services |
| Matches the agency's file | Yes, checked October 7, 2026 |
| Other names | N-400, N400, Form N-400, Form N400, Application for Naturalization |
| Official source | Form N-400 (Rev 01/20/25), U.S. Citizenship and Immigration Services |
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