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N-400 Processing Time: The Steps From Filing to Oath and What Can Slow Them Down

How the N-400 moves from filing to oath, where to see the official processing time for your office, what the fee is today and what can slow your case down.

By the Citizo Team6 min read

Hands hold an envelope over an open planner on a wooden table.

In short

  • Processing time changes by office and over time. The official number for your office is on the USCIS "Check Case Processing Times" page, and your online account can show a personal estimate.
  • The path has fixed steps: filing, receipt notice, biometrics (if needed), interview and tests, decision, oath ceremony.
  • If you fail a test, the retest is 60 to 90 days after your first interview.
  • The N-400 fee today is $710 online or $760 on paper. A proposal to raise it is not final.

Everyone asks "how long does it take?" The honest answer: it depends on your local office and on your case. This guide shows the steps, where to find the real number for your office and what you can do to avoid delays.

In this guide
  1. The steps, one by one
  2. Where to see the official processing time
  3. What it costs today
  4. What can slow your case down
  5. How to keep your case moving
  6. Frequently asked questions
  7. Sources

The steps, one by one

  1. You file Form N-400. You can file online with a free USCIS account or on paper. You may file up to 90 days before you complete the residence requirement (5 years as a permanent resident, or 3 years if you are married to a U.S. citizen).
  2. USCIS sends a receipt notice. Keep it. It has your receipt number. It also extends your Green Card for 24 months from the "Card Expires" date when you show it together with the card.
  3. Biometrics appointment, if needed. USCIS sends a notice with the date, time and place. They take your fingerprints, photo and signature.
  4. Interview and tests. An officer asks about your application and gives you the English and civics tests, unless you are exempt.
  5. Decision. USCIS can grant, continue (for example, to ask for more documents or to retest you) or deny your application.
  6. Oath ceremony. Sometimes it is the same day as the interview. If not, USCIS mails you a notice with the date. You are a citizen only after you take the Oath.

Where to see the official processing time

USCIS publishes processing times on its "Check Case Processing Times" page (egov.uscis.gov/processing-times). Choose Form N-400 and your field office. The number changes often, so check it again every few months.

A USCIS online account can show personalized case completion date estimates for your case. If you filed online, you already have one. If you filed on paper, USCIS mails you an Account Acceptance Notice with instructions to create it.

What it costs today

Way to fileFee on October 29, 2026
Online$710
Paper$760
Reduced fee (paper only, if your household income qualifies)$380
Fee waiver (paper only, Form I-912)No fee, if USCIS approves the waiver

You cannot file online if you ask for a reduced fee or a fee waiver.

A proposed change, not yet final. On June 23, 2026, the Department of Homeland Security published a proposed rule in the Federal Register. It would raise the N-400 fee to $1,280 online and $1,330 on paper, and end the reduced fee and fee waivers for the N-400. Members of the military who apply under their military service rules would still not pay. The comment period closed on August 24, 2026. On October 29, 2026, we found no final rule. Check the USCIS fee page before you pay.

What can slow your case down

SituationWhy it matters
You move and do not tell USCISYou must report a new address within 10 days. Notices can get lost.
You reschedule the interviewUSCIS says rescheduling may add several months.
Missing documentsThe officer may continue your case and ask for more evidence.
You fail a testThe retest is 60 to 90 days later.
Extra checksSince August 25, 2026, USCIS can do personal investigations, also called neighborhood investigations. It decides case by case or for groups of cases whether to do one or to waive it. You may choose to send character reference letters, preferably from U.S. citizens who are not family members; USCIS considers them when it decides whether to waive the investigation.

How to keep your case moving

  1. Answer every question on the N-400 truthfully and completely.
  2. Keep your address up to date in your USCIS online account.
  3. Go to every appointment on the date in the notice.
  4. Bring the documents your notice asks for to the interview.
  5. Study early, so you pass both tests the first time.

While you wait, study for the tests. Citizo has flashcards with audio for every question and a practice test that works like the real one. Our study plan helps you use the waiting months well. To follow your case, read how to check your USCIS case status. To prepare for the big day, read citizenship interview questions and what to expect at the oath ceremony.

Frequently asked questions

Can I ask USCIS why my case is taking so long?

Yes. Check your case status online first. If you still need help, you can send an online case inquiry or call the USCIS Contact Center at 800-375-5283 (TTY 800-767-1833).

Will the new fee apply to me if I already filed?

The proposal is not final. Today the fee is $710 online or $760 on paper. If the rule becomes final, it will say when it starts. Check the USCIS fee page before you file.

Can I travel while my N-400 is pending?

USCIS says trips of more than 180 days may break your continuous residence. Ask an attorney or accredited representative before long trips.

Do I become a citizen on the day of the interview?

Only if you also take the Oath that day. You are not a citizen until you take the Oath of Allegiance.

About this guide

This guide is general information, not legal advice. For questions about your own case, talk to an immigration attorney or an accredited representative. Citizo is an independent app. It is not part of the U.S. government and has no connection to USCIS. The official information is at uscis.gov. Written by the Citizo Team. Facts checked on October 29, 2026.

Sources