What is the processing time for Form N-600?

USCIS reports a typical processing range of 10–24 months for Form N-600 as of 2026-06-12. This varies by service center, case type, and current USCIS workload. Always check egov.uscis.gov/processing-times for the current live range.

What is the case inquiry date for N-600?

Your case inquiry date is your received date plus the high end of the published processing range (24 months). After this date, USCIS considers your case "outside normal processing time" and you may submit an inquiry.

Does premium processing apply to N-600?

Premium processing availability for Form N-600 varies. See the official USCIS page for current information.

Form N-600 processing time

Application for Certificate of Citizenship

Typical range (estimated)

10–24 months

As of 2026-06-12 · source: USCIS historical data

Live USCIS data

USCIS updates processing times monthly. Check the official tool for your service center and case type:

egov.uscis.gov/processing-times

Estimate your timeline

Enter your case received date (from your Form I-797 receipt notice) to calculate your estimated completion window and case inquiry date.

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Common questions

What is the processing time for Form N-600?: USCIS reports a typical processing range of 10–24 months for Form N-600 as of 2026-06-12. This varies by service center, case type, and current USCIS workload. Always check egov.uscis.gov/processing-times for the current live range.
What is the case inquiry date for N-600?: Your case inquiry date is your received date plus the high end of the published processing range (24 months). After this date, USCIS considers your case "outside normal processing time" and you may submit an inquiry.
Does premium processing apply to N-600?: Premium processing availability for Form N-600 varies. See the official USCIS page for current information.

Full N-600 details ← All processing times