N-400 Processing Time 2026

The N-400 Application for Naturalization is one of the most consequential immigration filings a lawful permanent resident can make. From the day USCIS receives your application to the day you take the Oath of Allegiance, you will experience multiple steps — biometrics, background checks, interview scheduling, and a civics test — each of which adds time to your total wait. Understanding what drives processing times helps you set realistic expectations and take the right actions at the right moments.

USCIS publishes updated processing time estimates on its website monthly for each form type at each service center and field office. Because the N-400 is adjudicated at local field offices rather than centralized service centers, processing times vary enormously by location. An applicant in a fast field office might receive an interview notice in 6 months, while an applicant in a backlogged office might wait 18 months for the same interview. Your processing time estimate should always come from your specific field office's current posted numbers, not national averages reported in news articles.

The N-400 process follows a predictable sequence of steps regardless of field office. After USCIS receives your application and fee, they send a receipt notice (Form I-797) confirming acceptance. A biometrics appointment at a local Application Support Center (ASC) follows, typically within 6–10 weeks of filing. Background checks run concurrently through FBI systems. Once background checks clear, your case is ready for interview scheduling — the most variable stage across field offices.

Biometrics processing is generally fast and does not significantly extend total processing time for most applicants. The FBI background check occasionally flags cases for additional review, which can add weeks or months to your wait. Cases involving criminal history — even minor or expunged offenses — almost always require additional review time. USCIS does not publish timelines for individual background check stages because they depend on FBI workloads and applicant-specific history.

Field office capacity is the single biggest determinant of N-400 processing time. Offices in major metropolitan areas with large immigrant populations (New York, Los Angeles, Miami, Chicago) typically have the longest backlogs. Smaller offices in less densely populated areas often process cases faster. If you have the flexibility to choose your USCIS field office by moving before filing, researching processing times by location can be a meaningful factor in your decision.

USCIS staffing levels and policy priorities also influence processing times. Periods of high filing volume, staffing shortages, or policy changes (such as expanded interview requirements) can cause processing times to spike significantly. During the COVID-19 pandemic, N-400 processing times nearly doubled at many offices. Applicants should monitor USCIS.gov regularly for policy updates that could affect their timeline.

The N-400 process begins the moment USCIS receives your application — not when you mail it. If you file by paper, add a week or more for mail transit and USCIS intake processing before the clock starts on their posted processing time. Online filers get faster intake acknowledgment, which is one of several reasons the online filing method is generally recommended for applicants who qualify.

USCIS has significantly increased N-400 adjudication capacity in recent years, partly in response to a historic backlog that built up during 2020–2022. As of 2025, the agency has hired additional adjudicators and implemented process improvements that have shortened median processing times compared to 2022–2023 peaks. However, individual field office conditions still vary greatly, and applicants in some major cities continue to experience 18–24 month waits despite overall improvements.

The USCIS processing times webpage includes both a median time estimate and a time within which 93% of cases are completed. The 93% figure is more useful than the median for setting a worst-case expectation — if the median is 12 months but 93% of cases complete within 20 months, you should budget for up to 20 months when making plans. Don't book international travel, change employment, or make major plans based solely on the median estimate.

Checking your N-400 status regularly via your USCIS online account is the most efficient way to stay informed. The online account shows current case status, displays any notices sent, and provides an estimated completion date range based on your field office's current performance. Enabling email and SMS notifications through your online account means you receive automatic updates whenever your status changes, without having to log in repeatedly.

The case status messages you'll see in your online account correspond to specific stages of adjudication. "Case Was Received" means USCIS accepted your application. "Appointment Notice Was Sent" indicates a biometrics or interview notice is in the mail. "Case Is Ready to Be Scheduled for an Interview" is a key milestone — it means your background checks are complete and your case is in the interview scheduling queue. The time between this status and your actual interview date depends entirely on your field office's current capacity.

Some N-400 applicants qualify to request expedited processing. USCIS grants expedite requests for applicants who can demonstrate severe financial loss, humanitarian emergencies, or U.S. government interest in faster processing. Military service members, their spouses, and applicants with documented medical emergencies are among those who typically receive expedite consideration. Expedite requests must include detailed documentation — a request without strong supporting evidence is routinely denied.

Congressional inquiries are another tool available to applicants experiencing unusually long delays. Your U.S. Representative and Senators have caseworkers who handle immigration inquiries and can contact USCIS directly on your behalf. This doesn't guarantee faster processing, but congressional inquiries are documented and tracked, and USCIS is more likely to provide a substantive status update when responding to a congressional office than to an individual applicant.

It's important to maintain valid lawful permanent resident status throughout your N-400 process. Your green card should remain valid, or if it expires during processing, you should renew it. A pending N-400 does not automatically extend your green card validity. If you need to travel internationally while your N-400 is pending, ensure your green card and any required reentry permits are current. Abandoning your green card status while the N-400 is pending terminates the application.

One factor many applicants overlook is the relationship between the interview notice date and the actual interview date. Once USCIS sends your interview notice, you typically have 2–4 weeks before the scheduled appointment. This means the "notice sent" date is not the interview date. Read the notice carefully, confirm the date, time, and location, and respond promptly if there are any issues — you must appear at the scheduled interview unless you formally request a reschedule in advance.

Preparing for the civics test while your N-400 is pending is productive use of your waiting time. USCIS tests 10 questions from a published list of 100 civics questions, and you must answer 6 correctly to pass. Most applicants who study the list regularly for a few weeks pass without difficulty. The English language component — reading, writing, and speaking — is assessed by the officer throughout the interview conversation, not as a separate formal test.

Some applicants make small errors on their N-400 form that they only discover during the interview when the officer reviews the application. Common mistakes include transposing dates, listing the wrong address for a previous employer, or forgetting to list a trip that occurred years earlier. If you notice an error on your application before the interview, prepare to address it clearly during the interview. Bringing documentation that clarifies the error helps prevent it from becoming a larger issue.

USCIS maintains field offices in all 50 states and several U.S. territories. Each office handles N-400 applications filed by residents within its geographic jurisdiction — you cannot choose a different field office unless you physically relocate to that jurisdiction. Because field office capacity, staffing, and filing volume differ dramatically, an applicant in Phoenix may wait 8 months for an interview while an applicant in Los Angeles waits 22 months for the same stage.

The USCIS website provides a processing times tool where you can select Form N-400 and your specific field office to see the current estimated range. This tool is updated monthly and reflects the median time from filing to interview scheduling or final decision for cases at each location. Use the tool rather than general news reports or forum posts for the most accurate current information.

Historical processing time trends are useful for understanding whether your office is speeding up or slowing down. USCIS's annual immigration statistics publications and the nonprofit organization Boundless publish historical processing time data that shows how wait times at specific offices have changed over the years. If your office has been trending faster, your wait may end sooner than the current median suggests; if it's been trending slower, budget extra time.

Applicants who move to a new USCIS jurisdiction after filing must update their address and their case may be transferred to the new field office. Transfers can add weeks or months to processing time as the new office absorbs the transferred cases into its own queue. If you're considering moving during the N-400 process, weigh the processing time difference between offices against the likelihood of a transfer delay before deciding.

Rural field offices and those serving smaller geographic populations generally have shorter processing times than major metropolitan offices, with some exceptions. Applicants who have the flexibility to choose their filing jurisdiction — particularly those near the boundary between two field office catchment areas — should research processing times before establishing the address they use when filing their N-400.

If you've already filed and your case is pending, there's little you can do to speed up adjudication at the field office level. Focus instead on the factors you can control: keeping your address updated, monitoring your case status regularly, preparing for the interview, and responding immediately to any USCIS communications. Proactive applicants who respond within days to USCIS requests tend to have fewer cascading delays than those who let notices sit unanswered for weeks.

The USCIS Ombudsman's Office is an independent resource within the Department of Homeland Security that advocates for applicants experiencing unreasonable delays. Filing a case assistance request with the Ombudsman is an option for applicants who have exceeded the posted processing time and have not received a response to standard case inquiries. The Ombudsman can contact the relevant USCIS office and request a status update or resolution on your behalf — a step above the standard Contact Center inquiry.

The most common causes of N-400 delays beyond normal processing times include unresolved background check issues, document requests (Requests for Evidence or RFEs), address changes mid-process, and missed appointments. Understanding each cause helps you take preemptive steps to avoid them or respond appropriately when they occur.

Background check delays are the most opaque cause of N-400 processing delays. USCIS does not disclose the specific reason a background check is taking longer than usual. Applicants with any criminal history — including arrests without conviction, misdemeanors, traffic offenses involving alcohol, or expunged charges — are at higher risk of extended background check review. If your case status has been unchanged for more than six months with no movement, a background check delay is a common explanation.

Requests for Evidence (RFEs) add significant time to processing. An RFE means the officer reviewing your case needs additional documentation to make a decision. Common RFE triggers include gaps in employment history, travel records that may affect continuous residence requirements, discrepancies between your N-400 and prior immigration filings, or incomplete documentation of name changes. Responding to an RFE promptly and completely is critical — a partial or delayed response extends your wait further.

Missing a biometrics appointment without rescheduling is a serious issue that can cause your case to be administratively closed. If you cannot attend your scheduled biometrics appointment, reschedule as soon as possible through your USCIS online account or by calling the USCIS Contact Center. Rescheduling delays your timeline by weeks, but administrative closure requires you to refile from the beginning — losing your original priority date and filing fee.

Address changes that aren't properly reported can result in missed notices and cascading delays. USCIS is required to send appointment notices and decisions to the address on file. If you move without updating your address, notices go to your old address, you miss appointments, and your case is delayed or closed. Update your address through Form AR-11 and through your USCIS online account immediately upon moving — don't wait until after you've settled in.

Cases that require supervisory review or are transferred to another office for national security screening take longer than standard cases. USCIS does not publicize which cases are flagged for additional screening or why. Applicants whose cases appear stalled with no movement for months despite clear background history should contact USCIS through their online account and consider consulting an immigration attorney for guidance on whether additional escalation is warranted.

For applicants who've been waiting over a year with no interview notice, it may be worth scheduling a consultation with an immigration attorney. An experienced attorney can review your case, advise whether your wait is unusual given your specific office's current conditions, and help you decide whether to file a mandamus lawsuit — a federal court petition compelling USCIS to adjudicate your case. Mandamus filings are uncommon but occasionally effective for cases that appear indefinitely stalled with no explanation.

Throughout the entire N-400 process, document every interaction you have with USCIS: case inquiry reference numbers, phone call dates and representative names, written responses, and all notices received. This documentation protects you if questions arise about your responsiveness or if you need to escalate through legal channels. Keeping a simple log with dates and reference numbers takes minimal time but can prove invaluable if your case becomes complicated later in the process.