⚠️ Not legal advice. Processing times change frequently. Always verify at USCIS.gov. Consult a licensed immigration attorney for your case.
Average Minimum
NaN mo
Across all service centers
Average Maximum
NaN mo
Across all service centers
Service Centers
3
With available data
N-400 Processing Times by Service Center
| Service Center | Category | Processing Range | Data Date |
|---|---|---|---|
| NBC | Naturalization | 8.0–14.0 months | Mar 2026 |
| NBC | Naturalization Application (General) | 14.0–18.5 months | Mar 2026 |
| NSC | Naturalization Application (General) | 12.0–17.0 months | Mar 2026 |
| TSC | Naturalization Application (General) | 10.0–16.0 months | Mar 2026 |
Source: USCIS.gov. Data updated regularly.
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About N-400 — Application for Naturalization
Form N-400 is used for: U.S. Citizenship. Processing times vary by USCIS service center and petition volume.
Premium processing (Form I-907) is available for many N-400 petitions — it guarantees a decision within 15 business days for an additional fee (currently $2,965).
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Frequently Asked Questions
How long does N-400 processing take in 2026?
As of April 2026, N-400 (Application for Naturalization) processing takes NaN–NaN months depending on the USCIS service center and petition category. USVisaStack tracks live USCIS data — see the table above for current wait times by service center.
Which USCIS service center processes N-400 fastest?
N-400 processing speeds vary significantly by service center. Based on current USVisaStack data, the fastest times run around NaN months while the slowest can reach NaN months. You cannot choose your service center — USCIS assigns it based on filing location. Check the service center breakdown table above for the latest comparison.
How can I check my N-400 processing status?
Enter your receipt number at USVisaStack's free Case Status Checker (usvisastack.ai/tools/case-status) for instant status with an AI explanation of what your status means. You can also check directly at egov.uscis.gov/casestatus. USVisaStack sends alerts when USCIS processing times change for your form type.
Is premium processing available for N-400?
Premium processing (Form I-907) guarantees a USCIS decision within 15 business days for eligible N-400 categories. Fees effective March 2026: $2,965 for I-129/I-140 petitions; $1,780 for I-765 F-1 OPT/STEM extensions. Not all categories qualify — verify eligibility at USCIS.gov before filing.