There is no single N-400 processing time for every applicant. USCIS publishes a historical completion figure for each field office, showing how long it took to complete 80% of adjudicated cases during the previous six months. It is not a deadline or prediction. Check the official processing-times tool and your case status for current information.
Last verified September 2, 2026. This guide was checked against USCIS processing-time methodology, case-management tools, and naturalization policy. Processing estimates change monthly. This article provides general information, not legal advice.
N-400 Processing Time, Case Status, and Inquiry Date
These USCIS tools answer different questions. The processing-time figure describes recently completed cases, the status tool reports updates for your receipt number, and the case-inquiry date tells you when USCIS may accept an outside-normal-processing-time inquiry.
| USCIS information | What it tells you | What it does not tell you |
|---|---|---|
| Processing time | How long USCIS took to complete 80% of adjudicated cases in the prior six months | Your personal completion date |
| Case status | The latest recorded update for your receipt number | Every internal action or the next guaranteed step |
| Case-inquiry date | Whether your receipt date may be outside normal processing | A promise that USCIS will decide the case by that date |
How to Check Your Case Status
You can check your N-400 status in two ways:
- Online case status tool: Go to egov.uscis.gov/casestatus and enter the receipt number from your Form I-797C, Notice of Action.
- USCIS online account: Log in to your account at my.uscis.gov to see your latest status and any notices.
Your receipt number starts with three letters (such as IOE, MSC, or LIN) followed by a series of numbers. You received this number when USCIS accepted your application.
Case Was Received
This is the first status you will see. It means USCIS has received and logged your N-400 application and assigned a receipt number. At this point, your application is in the queue for initial processing. No action is needed from you.
Case Is Being Actively Reviewed
This status means USCIS is reviewing your case. The message by itself does not identify every activity underway, provide a completion date, or guarantee which update will appear next. Continue monitoring your account, keep your mailing address current, and respond to any notice USCIS sends.
Interview Was Scheduled
This means USCIS has set a date, time, and location for your naturalization interview. Review the appointment notice for the exact instructions and documents to bring. The status does not, by itself, establish that every background or eligibility review is complete.
Request for Evidence Sent
If you see this status, USCIS needs additional documents or information from you. You will receive a notice explaining what is needed and a deadline to respond. Respond promptly and completely. Missing the deadline can result in your application being denied.
Interview Was Completed and Case Must Be Reviewed
This status appears when the interviewing officer needs additional time or supervisory review before making a decision. According to USCIS policy, the agency generally has 120 days from the interview date to issue a decision. While this can feel stressful, it does not necessarily mean something is wrong.
Case Was Approved
Your naturalization application has been approved. You will soon receive a notice scheduling your oath ceremony. At the oath ceremony, you will take the Oath of Allegiance and officially become a U.S. citizen.
Oath Ceremony Notice Was Mailed
This is the final status before you become a citizen. USCIS has mailed your oath ceremony notice with the date, time, and location. Check your mail carefully and make sure you can attend.
How USCIS Calculates N-400 Processing Time
USCIS explains that the time displayed in its tool is how long it took to complete 80% of adjudicated cases during the previous six months. This means 20% of completed cases took longer than the displayed figure. The estimate may change as workloads, staffing, evidence requests, policy, and other conditions change.
- Open the USCIS processing-times tool.
- Select Form N-400, Application for Naturalization.
- Select the category and local field office that apply to your case.
- Use the case-inquiry date shown by USCIS to determine when you may ask about a case outside normal processing time.
If your receipt lists the National Benefits Center, USCIS instructs N-400 applicants to use the estimate for their local field office.
When Can You Submit an N-400 Case Inquiry?
Use the receipt date from Form I-797C in the USCIS processing-times tool. If USCIS says your case is eligible for an inquiry, follow the link to submit an outside-normal-processing-time request. A long wait alone does not establish eligibility; use the date and result shown for your form and office.
What to Do While You Wait
The time between filing and your interview is the best window to prepare for the civics test and English assessment. Citizenry helps you make the most of that time with flashcards, quizzes, and mock interviews so you are ready when your interview date arrives.
Frequently Asked Questions
What does 'Case Is Being Actively Reviewed' mean for N-400?
Case Is Being Actively Reviewed means USCIS is reviewing your N-400. The message alone does not provide a completion date or guarantee which update comes next. Follow any notices USCIS sends and keep your address current.
How long does N-400 processing take from filing to oath ceremony?
There is no single N-400 processing time. USCIS's published figure is historical: it shows how long the agency took to complete 80% of adjudicated cases during the previous six months. Check your field office and case-inquiry date for current information.
How do I check my N-400 case status online?
You can check your N-400 case status at egov.uscis.gov/casestatus using the receipt number from your Form I-797C, Notice of Action. You can also log in to your USCIS online account to see the latest status updates and any notices.
Official USCIS Sources
- Case Processing Times
- How USCIS Calculates Processing Times
- Case Status Online
- USCIS Policy Manual: Background and Security Checks and Pending Issues
Related Articles
- N-400 Status Check: How to Track Your USCIS Case
- How Long Does the Naturalization Process Take?
- How to Apply for US Citizenship (Step-by-Step Guide)
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