How Long Does Naturalization Take in 2025

Most applicants wait between 12 and 24 months from the day they file Form N-400 to the day they attend their oath ceremony. That range is wide because processing times differ considerably from one USCIS field office to another, and because each case moves through several distinct phases before it reaches the finish line.

The Six Phases of the Naturalization Process

Understanding the timeline is easier when you break it into its component stages. Each stage has its own waiting period, and delays at any point push back the ones that follow.

• Filing and receipt notice. After USCIS receives your N-400, they mail a receipt notice (Form I-797) within two to three weeks. This notice gives you your case number, which you use to track your application online.
• Biometrics appointment. Most applicants receive a biometrics appointment notice within four to eight weeks after filing. The appointment itself takes about 15 to 20 minutes at an Application Support Center.
• Background check processing. After biometrics, the FBI runs a fingerprint check and a name check. This phase runs concurrently with the interview scheduling period and usually completes before the interview date.
• Interview scheduling. The wait between filing and the interview appointment is typically the longest phase, ranging from three to eighteen months depending on the USCIS office. Offices in large metro areas tend to have longer backlogs.
• Post-interview decision. If your interview goes well, USCIS either approves your case on the spot or mails a written decision within a few weeks.
• Oath ceremony. After approval, you wait for an oath ceremony notice. Administrative ceremonies (held at the USCIS office) can happen within days of approval. Judicial ceremonies (held at a court) may take several additional months depending on the court's schedule.

What Causes Cases to Take Longer

Several factors extend processing beyond the published average. Being aware of them helps you prepare your application carefully and avoid preventable delays.

• Incomplete applications. Missing signatures, unsigned checks, or omitted attachments cause USCIS to send a rejection notice and require you to refile.
• Requests for evidence (RFEs). If USCIS needs more information, they issue an RFE. You typically have 87 days to respond, which pauses your case clock.
• Criminal history. Any arrest, even one without a conviction, requires additional review. Applicants with criminal records should expect their cases to take longer.
• Continuous residence issues. If you took extended trips outside the United States, USCIS may take more time to verify that you maintained your continuous residence requirement.
• Fraud investigations. If USCIS flags concerns about the underlying Green Card, naturalization can be placed on hold during the investigation.

How to Check Your Case Status

The fastest way to check your status is through the USCIS online case status tool at egov.uscis.gov. You enter your receipt number from your I-797 notice and the system shows the latest update on your case.

You can also use the USCIS virtual assistant, Emma, for general guidance. If you need to speak with someone directly, call the USCIS Contact Center at 1-800-375-5283. They can add a service request to your case if it has exceeded the published processing time for your office.

What "Outside Normal Processing Time" Means

USCIS publishes processing time ranges for each field office at egov.uscis.gov/processing-times. If your case has been pending longer than the upper end of that range, it is considered outside normal processing time. At that point, you can submit a case inquiry through your online USCIS account or by calling the Contact Center.

A case inquiry does not speed up the process directly, but it creates a record that may prompt the assigned officer to review your file. If the inquiry does not resolve the delay within 60 days, your next option is filing a mandamus lawsuit in federal district court, though that is rare and usually requires an attorney.

Frequently Asked Questions

Does filing online make the process faster? Filing online through myUSCIS ($710 fee vs. $760 for paper) does not reduce your wait for the interview or ceremony. However, online filers tend to receive their receipt notices faster and have easier access to case status updates.

What is an interview waiver? USCIS has the discretion to waive the in-person interview for certain categories of applicants, including those who have been continuous permanent residents for many years and have straightforward applications. However, waivers are not guaranteed and are relatively uncommon.

Can I travel outside the U.S. while my N-400 is pending? Yes, you can travel as a permanent resident while your N-400 is pending, as long as you maintain your Green Card and re-enter lawfully. Be aware that extended trips may raise continuous residence questions at your interview.