Adjudication of naturalization — After you file Form N-400 (Application for Naturalization), USCIS moves through a set of stages — intake and biometrics, background checks, the naturalization interview (including the English and civics test), adjudicator decision, and, if approved, the oath ceremony. Below is a practical walkthrough of those stages and a copy-pasteable checklist to prepare applicants and attorneys for smoother adjudication.

— what happens after you file Form N-400
By Brian D. Lerner — A plain-language guide to naturalization adjudication: filing, biometrics, interview & test, decisions, denials, and next steps for applicants and counsel.
Overview — the stages of adjudication
First, USCIS receives and processes your N-400 filing. Next, you will receive a biometrics appointment notice for fingerprinting and identity verification; meanwhile, USCIS runs background and security checks. Then, USCIS schedules an interview at the local field office where an officer reviews your application, asks questions about your background, and administers the English and civics tests (with certain exceptions). After the interview, the officer may decide to grant, continue (for additional evidence), or deny the application. Finally, if granted, the applicant attends an oath ceremony and becomes a U.S. citizen.
Before the interview — what to do
Prepare early and therefore reduce the chance of delays. First, gather original documents: your permanent resident card (green card), passport(s), state IDs, marriage/divorce certificates, USCIS notices, and any court or arrest records with dispositions. Next, assemble proof of continuous residence and physical presence (tax returns, lease agreements, pay stubs, school or medical records). Moreover, if you claim time outside the U.S. is exempted or based on special circumstances, prepare travel records and employer letters that support your timeline. Finally, if you need accommodations (language interpreter or disability accommodations), request them in advance per USCIS instructions.
Biometrics & background checks
At the biometrics appointment, USCIS collects fingerprints and a photograph. These biometric data feed national security and criminal databases for name and fingerprint checks. Consequently, any arrests or interactions with law enforcement should be documented and explained at interview; otherwise, discrepancies can trigger a Request for Evidence (RFE) or a delay in adjudication.
The naturalization interview & tests
During the in-person interview an immigration officer will review your N-400, verify identity, and ask questions about your eligibility — for example: continuous residence, physical presence, residence and employment history, and moral character issues. In addition, the officer will administer the English language test (reading, writing, and speaking) and the civics test (knowledge of U.S. history and government), unless you qualify for an exception or waiver (for example, Age 50+ with long residency, or certain disability waivers). If you do not pass a component, you typically get a second opportunity within a reasonable timeframe. Therefore, study the civics list and practice English skills ahead of the interview.
Common reasons for “continuance” or denial
USCIS may continue (postpone) the interview if crucial evidence is missing — for example, missing tax returns, unclear travel history, or lack of court dispositions. Moreover, denials commonly rest on failures to meet statutory requirements: insufficient continuous residence or physical presence, lack of good moral character (for example, certain criminal convictions), false statements on the application, or failure to show eligibility for English/civics exceptions. If the officer finds a problem, they will explain the reason and issue written instructions on next steps or appeal rights.
Decision outcomes & next steps
- Granted: USCIS will issue a notice for an oath ceremony; attend and take the Oath of Allegiance to become a U.S. citizen.
- Continued: USCIS requests specific documents or schedules a follow-up — provide materials promptly and follow instructions carefully.
- Denied: You will receive a written denial that explains reasons and whether you may appeal (Form N-336, Request for a Hearing on a Decision in Naturalization Proceedings) or reapply. Appeals and motions must be timely; therefore consult counsel immediately if denied.
Tips for special situations
If you have criminal history, do not assume the conduct is disqualifying — instead, obtain criminal records and dispositions and consult a qualified immigration attorney to evaluate moral-character eligibility. Likewise, if you spent long periods abroad, calculate continuous residence and physical presence precisely: certain trips over 6 months or a single trip over 1 year can break continuous residence unless you can show uninterrupted ties and specific exceptions. Furthermore, military service, marriage to a U.S. citizen, and certain employment categories create alternative eligibility paths that have their own rules — so tailor preparation accordingly.
Practical checklist — documents to bring to the interview
| Document | Why it matters |
|---|---|
| Permanent resident card (green card) | Proof of lawful permanent residence and identity. |
| Passport(s) & travel documents | Shows entries/exits to calculate physical presence. |
| State ID / driver’s license | Local ID for interview verification. |
| Tax returns / W-2s | Evidence of continuous residence, employment, and good moral character. |
| Marriage/divorce certificates & name change documents | Proves family relationships and legal name history. |
| Criminal/court records and dispositions | Essential to clear up arrests or convictions. |
| Evidence of selective service compliance (if applicable) | Required for certain male applicants. |
If you disagree with a denial — remedies
If USCIS denies naturalization, you may request a hearing before a USCIS officer using Form N-336 (Request for a Hearing on a Decision in Naturalization Proceedings). Alternatively, you might reapply after curing the disqualifying issue (for example, obtaining a court disposition or completing a required waiting period). Moreover, if you believe constitutional or legal errors occurred, consult counsel about litigation options, timing, and the viability of appeals.
Common FAQs
How long does adjudication usually take?
Times vary by field office and caseload; commonly, the process takes several months from filing to interview, but some applicants experience faster or slower timelines depending on background checks and local workload. Check USCIS processing timelines for current estimates.
Do I have to take the English and civics tests?
Generally yes, unless you qualify for an exemption or waiver (for example, age 50/20 years of residency or a qualifying disability). If you fail a test component, you are usually given a second opportunity to retake it within a defined period.
What if I forgot to list something on my N-400?
Be honest at the interview. If you omitted information inadvertently, explain and provide supporting documents. Concealment or false statements can lead to denial or later revocation, so full disclosure is critical. Consult counsel if you fear adverse consequences.
