Naturalization through military service
If you serve or served honorably in the U.S. armed forces, you may apply for citizenship under special rules. USCIS charges no fee for an N-400 filed under INA 328 or 329.
INA 328: one year of honorable service, at any time
- Age 18 or older.
- At least 1 year of honorable service in total.
- A lawful permanent resident at the time of the interview.
- Certain residence and physical presence requirements still apply, in reduced form.
- English and civics tests, and good moral character for 5 years before filing through the oath.
INA 329: service during a designated period of hostilities
The current period runs from Sept. 11, 2001 to the present. Applicants who served honorably during hostilities are exempt from the general continuous residence and physical presence requirements, and may qualify even without a green card if they were physically present in the U.S. (or certain other places) at enlistment, reenlistment, extension or induction. Good moral character is required for 1 year before filing through the oath.
What you file
- Form N-400.
- If currently serving: Form N-426, certified by the military.
- If separated: a copy of your DD Form 214, NGB Form 22 or other discharge document for all periods of service.
Many installations have a USCIS liaison, often through the legal assistance office or JAG. USCIS's Military Help Line is 877-CIS-4MIL (877-247-4645).
A separation that was not under honorable conditions, a past arrest, or a gap in status can change the analysis. Get advice before filing.
This is a private law office website. It is not affiliated with or endorsed by the Department of Defense, the U.S. Army, Fort Belvoir, any branch of the armed forces, USCIS or any other government agency. Free help is also available from your installation legal assistance office and the USCIS Military Help Line, 877-CIS-4MIL (877-247-4645).
Sources
- USCIS, “Naturalization Through Military Service”, last updated 10/11/2024 (accessed Oct. 26, 2026).
- USCIS, “N-400, Application for Naturalization”, last updated 06/16/2026 (accessed Oct. 26, 2026).
- USCIS, “Policy Manual, Volume 12, Part I – Military Members and Their Families” (accessed Oct. 26, 2026).