How to Check Your USCIS Case Status (N-400)

Updated: October 30, 2026

The fastest way to check your N-400 status is the free Case Status Online tool on uscis.gov: type in the 13-character receipt number from your receipt notice and you will see the latest update. A free USCIS online account gives you even more detail, including recent actions and copies of notices.

Find your receipt number

Your receipt number is on the Form I-797C receipt notice USCIS sends after accepting your N-400. If you filed online, it also appears in your USCIS online account.

According to USCIS, the receipt number is:

13 characters: three letters followed by 10 numbers
Prefixed with a code such as IOE (common for online filings), or service center codes like NBC, MSC, EAC, WAC, LIN, or SRC
Entered without dashes, but with any other characters shown on the notice, such as asterisks

Keep a photo of your receipt notice on your phone. You will need the number for status checks, for the Contact Center, and sometimes at appointments.

Three ways to check status

1. Case Status Online

Go to the Case Status Online page, enter your receipt number, and submit. You will see a short status title and a paragraph explaining it. This works for both paper and online filings and needs no login.

2. USCIS online account

At my.uscis.gov you can create a free account. If you filed online, your case is there automatically. If you filed on paper, you may be able to link the case using the account access information on your notice. The account shows recent case actions, lets you view notices electronically, respond to some requests, and send secure messages. It is the best option if you travel often, as explained in traveling while your N-400 is pending.

3. USCIS Contact Center

You can call 800-375-5283 (TTY 800-767-1833) for help. Have your receipt number and A-Number ready. The Contact Center can explain your status and, in some situations, escalate an inquiry, but it cannot speed up a case that is within normal processing times.

Understanding the status messages

Status wording changes over time, but a typical N-400 moves through these stages:

Case received: USCIS accepted your filing and fee.
Biometrics: a notice for fingerprints and photos may be sent, or USCIS may reuse prior biometrics.
Interview scheduled: an interview notice is mailed or posted with the date, time, and field office.
Interview completed or decision pending: the officer may approve on the spot, continue the case, or request more evidence.
Oath ceremony scheduled: you receive a ceremony notice.
Oath taken or case approved: you are a citizen once you take the oath.

Other messages you might see:

Request for Evidence (RFE) sent: USCIS needs more documents. Respond by the deadline on the notice.
Case transferred: the case moved to another office, which is normal and often happens before an interview.
Case reopened or continued: often follows a retest or a request for more information.
Denied: read what to do if your N-400 is denied right away, because the N-336 deadline is only 30 days.

For a full picture of each step, see the naturalization timeline.

Is your case taking too long?

Use the official USCIS processing times page. Select Form N-400 and the field office handling your case (shown on your notices). The tool shows how long most cases are taking and, in many cases, a "receipt date for a case inquiry" - cases received before that date can be considered outside normal processing time.

If your case is outside that range, you can submit an inquiry through USCIS's e-Request tool or by calling the Contact Center. Processing times change often and vary a lot by office, so check the page yourself rather than relying on what someone in another city experienced.

Other ways to get help

Congressional caseworkers: your U.S. representative or senator often has staff who help constituents with federal agencies. See find your senators and representative.
CIS Ombudsman: an independent office in DHS that can help when you have already tried to resolve a problem with USCIS.
An attorney or accredited representative, especially if your case involves complex issues.

Common status-check problems

"Receipt number not found": double-check for typos, remove dashes, and wait a few days if you just filed.
Status has not changed in months: this is common. A case can be under review or waiting for background checks without visible updates.
Online account does not show a paper case: look for an account access notice and follow the linking instructions, or keep using Case Status Online.

Use the waiting time well

Most applicants spend months between filing and the interview. That is enough time to learn all 128 questions on the 2025 civics test. A spaced-repetition app like Civio can show you which questions you keep missing, and the full question list is a good place to start.

Frequently asked questions

Where is my USCIS receipt number?

It is printed on your Form I-797C receipt notice and in your USCIS online account if you filed online. It has 13 characters, three letters followed by 10 numbers.

Can I check my N-400 status without a receipt number?

Case Status Online requires the receipt number. If you lost it, your USCIS online account or the Contact Center can help you find your case information after verifying your identity.

How often does the status update?

There is no fixed schedule. Cases often show no change for long periods while background checks and scheduling happen, then update when a notice is issued.

My case is taking longer than the posted processing time. What can I do?

Check the processing times page for your field office. If your receipt date is earlier than the case inquiry date shown, submit an e-Request or call the Contact Center at 800-375-5283.

Can I check status for a family member's case?

Yes. Case Status Online only needs the receipt number, so you can check any case as long as you have the number.

Prepare for the civics test with Civio: every official question from the 2025 USCIS civics test, Exam Mode with your state's questions, and spaced repetition.

Informational article, not legal advice. Civio is not affiliated with USCIS or any government agency; always check current requirements at uscis.gov.