N-600 Source-reviewed processing range noindex
Form N-600 processing time
Application for Certificate of Citizenship
Pending review: This processing-time page is noindexed until PetitionPace has a real USCIS historical FY2016-FY2024 row for this form. No historical trend is inferred from other forms.
Typical range
10-24 months
As of 2026-06-12; source: USCIS Form G-1055 (effective April 1, 2024); uscis.gov/n-600
High-end rank
#6
of 19 processing-time routes; +6 months vs median high end
Live USCIS check
USCIS updates processing times monthly. Select your form, service center, and case type in the official tool before relying on any estimate. Historical fiscal-year medians and live monthly ranges use different methods.
egov.uscis.gov/processing-timesEstimate your timeline
Use the received date from your Form I-797 receipt notice. The calculator adds the low and high ends of this range and shows the estimated completion window and inquiry date.
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.