How to Apply for US Citizenship in 2026 — Complete Naturalization Guide

To apply for US citizenship, file Form N-400 (Application for Naturalization) online at uscis.gov or by mail, pay the filing fee, attend a biometrics appointment, pass the English and civics tests at your interview, then take the Oath of Allegiance. The full process takes 6 to 14 months depending on your USCIS field office.

This guide covers every step of the 2026 naturalization process — eligibility requirements, documents, the updated civics test, processing times by field office, fees, and 7 common mistakes that cause delays or denials.

1. Check Your Eligibility Before Filing

Submitting Form N-400 before you meet every requirement results in automatic denial. Confirm all 7 eligibility criteria before you file.

7 Eligibility Requirements for US Citizenship in 2026

• Age: Must be at least 18 years old at the time of filing
• Lawful Permanent Resident (LPR) status: Hold a valid Green Card for 5 years (or 3 years if married to a US citizen)
• Continuous residence: Must not have left the US for more than 6 consecutive months during the required period
• Physical presence: Must have been physically present in the US for at least 30 months out of the last 60 months (18 months out of 36 months for the 3-year path)
• Good moral character: Clean criminal record for the statutory period — unpaid taxes, DUI convictions, false statements on immigration forms, or illegal voting can bar citizenship
• English proficiency: Ability to read, write, and speak basic English (exemptions apply for applicants age 50+ with 20 years as LPR, or age 55+ with 15 years as LPR)
• Civics knowledge: Pass the 2025 updated civics test with 128 questions — you must answer at least 12 out of 20 questions correctly

Residency Paths: 5-Year vs 3-Year Rule

Eligibility Path	Green Card Requirement	Physical Presence	Can File Early
Standard (most applicants)	5 years as LPR	30 months in last 60	90 days before 5-year mark
Married to US citizen	3 years as LPR + must stay married	18 months in last 36	90 days before 3-year mark
US military service (active duty)	No LPR time required in some cases	Varies by service	Contact USCIS for details
Military veteran (1 year+ service)	1 year as LPR	No minimum	After honorable discharge

2. Gather Your Required Documents

Missing or incorrect documents are the top reason USCIS delays N-400 applications. Collect all 9 document categories before starting your form.

9 Required Documents for Form N-400

• Green Card (Form I-551): Front and back copy
• Government-issued photo ID: State driver’s license or passport
• Passport copies: All passports used in the past 5 years (or 3 years)
• Tax transcripts: IRS transcripts for the past 5 years (3 years for the spouse path) — available free at irs.gov
• Marriage/divorce certificates: Required if your eligibility is based on marriage to a US citizen, or if you have been divorced
• Court dispositions: Certified copies for any arrest, charge, or conviction — even dismissed cases and minor traffic offenses
• Selective Service registration: Required for male applicants who lived in the US between ages 18 and 26
• 2 passport-style photographs: 2×2 inches (51×51 mm), taken within the past 30 days
• Foreign language translations: Certified English translations for every document not in English

3. Complete and File Form N-400

Form N-400 is the official Application for Naturalization. USCIS accepts only the 01/20/2025 edition — using an older downloaded version causes automatic rejection.

2 Ways to File Form N-400

• Online (recommended): File at myaccount.uscis.gov — costs $710, processes faster, and lets you track your case in real time. You must create a free USCIS online account first.
• By mail (paper): Download Form N-400 from uscis.gov, complete it, and mail with supporting documents and a check or money order for $760 payable to ‘U.S. Department of Homeland Security’. Do not abbreviate the name.

N-400 Filing Fees in 2026

Applicant Type	Online Fee	Paper Fee	Biometrics Included
Most adult applicants (18–74)	$710	$760	Yes
Applicants age 75 or older	$710	$760	Waived — no biometrics required
Reduced fee (income-based)	$380	$380	Yes
Fee waiver (Form I-912)	$0	$0	Yes
US military members	$0	$0	Yes

Note: If you request a fee waiver or reduced fee, you cannot file online. Submit a paper Form N-400 with completed Form I-912 (Request for Fee Waiver) and supporting income documentation.

7 Common N-400 Form Mistakes to Avoid

1. Wrong form edition — USCIS rejects any edition other than 01/20/2025
2. Incorrect dates — travel history dates, employment dates, and LPR start date must be exact
3. Incomplete travel history — list every trip outside the US in the past 5 years (or 3 years)
4. Missing criminal disclosures — disclose every arrest even if charges were dropped or expunged
5. Inconsistent employment history — dates and employer names must match tax records
6. Unsigned form — USCIS rejects unsigned applications without review
7. Wrong mailing address — use the correct USCIS Direct Filing Address for your state, not a general USCIS address

4. Attend Your Biometrics Appointment

After USCIS receives your N-400, the agency sends a biometrics appointment notice within 3 to 8 weeks. The appointment takes place at a USCIS Application Support Center (ASC) near your home address.

What Happens at the Biometrics Appointment

• USCIS staff collect your fingerprints, photograph, and signature
• The FBI runs a criminal background check using your fingerprints
• USCIS may use the photograph taken at the ASC on your Certificate of Naturalization — dress appropriately
• The appointment lasts 15 to 30 minutes
• Rescheduling adds weeks to your processing time — attend on the scheduled date

5. Prepare for the Naturalization Interview and Tests

The USCIS naturalization interview covers 3 things: review of your N-400 application, the English language test, and the civics test. Most interviews last under 30 minutes for prepared applicants.

The 2025 Updated Civics Test — What Changed

Applicants who filed Form N-400 on or after October 20, 2025 take the new 2025 civics test. Applicants who filed before October 20, 2025 take the original 2008 test.

	2008 Civics Test	2025 Civics Test (Current)
Total question pool	100 questions	128 questions
Questions asked at interview	10 questions	Up to 20 questions
Passing score	6 correct out of 10	12 correct out of 20
Focus	Fact memorization	History and government understanding
Retake if failed	60–90 days later	60–90 days later

English Language Test — 3 Components

• Reading: Read 1 sentence in English correctly out of up to 3 attempts
• Writing: Write 1 sentence in English correctly out of up to 3 attempts
• Speaking: Demonstrate ability to speak and understand basic English during the interview

English Test Exemptions

• Age 50+ with 20 years as a Lawful Permanent Resident (LPR) — known as the ’50/20 exemption’
• Age 55+ with 15 years as LPR — known as the ’55/15 exemption’
• Applicants with qualifying physical or developmental disabilities — file Form N-648 (Medical Certification for Disability Exceptions)

What to Bring to Your USCIS Interview

• Appointment notice
• Government-issued photo ID
• Green Card (or Form I-797C receipt notice if Green Card has expired)
• Originals of every document submitted with your N-400
• Any documents specifically requested in your interview notice
• Passport(s) from the past 5 years

3 Possible Interview Outcomes:

Approved: USCIS approves your application — oath ceremony scheduled within 1 to 4 weeks

Continued: Additional evidence needed, English or civics test failed — retest scheduled 60 to 90 days later

Denied: Application does not meet eligibility requirements — USCIS issues written denial with reason; appeal is possible

6. Take the Oath of Allegiance

After USCIS approves your N-400 application, the agency schedules your Oath of Allegiance ceremony. The oath ceremony is the final step — you become a US citizen the moment you take the oath.

What Happens at the Oath Ceremony

1. USCIS sends notice N-445 (Notice of Naturalization Oath Ceremony) with your ceremony date
2. Surrender your Green Card at the ceremony — you no longer need it after taking the oath
3. Take the Oath of Allegiance to the United States Constitution
4. Receive your Certificate of Naturalization immediately after the oath
5. Review your Certificate of Naturalization for errors before leaving the ceremony site — report any errors to the USCIS officer on site before leaving

Oath ceremonies occur within 1 to 4 weeks after approval. Some USCIS field offices offer same-day administrative oath ceremonies immediately after the interview. Judicial ceremonies at federal courthouses may be less frequent — monthly or quarterly at some locations.

N-400 Processing Times by USCIS Field Office (June 2026)

The national average N-400 processing time is 7.9 months as of June 2026. Processing times vary dramatically by field office — the difference between the fastest and slowest offices reaches nearly 10 months.

USCIS Field Office	Estimated Processing Time	Volume
Cincinnati, OH	~3 months	Lower volume
Charleston, SC	~4 months	Lower volume
Memphis, TN	~4–5 months	Lower volume
Boston, MA	~6–7 months	Moderate volume
Chicago, IL	~7–9 months	High volume
Los Angeles, CA	~9–11 months	Very high volume
Miami, FL	~10–12 months	Very high volume
New York, NY	~11–13 months	Very high volume
Harlingen, TX	~13 months	High volume

Source: USCIS field office processing time data, June 2026. Always verify current estimates at egov.uscis.gov/processing-times before filing.

7 Steps to Apply for US Citizenship — Full Timeline

Step	Action	Estimated Timeline
1	Confirm eligibility — check LPR date, physical presence days, travel history, criminal record	Before filing
2	Gather documents — Green Card, ID, tax transcripts, court records, passports, photos	2–4 weeks
3	Complete Form N-400 (01/20/2025 edition) — file online ($710) or by mail ($760)	1–2 weeks
4	Receive receipt notice (Form I-797C) — confirms USCIS accepted your application	2–4 weeks after filing
5	Attend biometrics appointment at USCIS ASC — fingerprints, photo, signature collected	3–8 weeks after filing
6	Attend naturalization interview — USCIS reviews N-400, administers English and civics tests	4–13 months after filing
7	Take Oath of Allegiance — surrender Green Card, receive Certificate of Naturalization	1–4 weeks after approval

7 Mistakes That Cause N-400 Delays or Denials

• Filing too early: Submitting before meeting the continuous residence requirement triggers automatic denial
• Using the wrong form edition: Any N-400 edition other than 01/20/2025 is rejected by USCIS
• Incomplete travel disclosure: Every trip outside the US must be listed — USCIS cross-checks passport stamps against your application
• Failing to disclose criminal history: Non-disclosure is treated more seriously than the underlying offense — always disclose even minor violations
• Incorrect mailing address: Filing to the wrong USCIS Direct Filing Address routes your case incorrectly and adds weeks
• Missing the biometrics appointment: Failure to appear or reschedule on time pauses your application
• Studying outdated civics materials: The 2025 civics test has 128 questions — applicants using 100-question study materials are underprepared

Frequently Asked Questions

How long does it take to get US citizenship in 2026?

The full process takes 6 to 14 months from filing Form N-400 to receiving your Certificate of Naturalization. Cincinnati processes cases in approximately 3 months. New York and Harlingen take 11 to 13 months. File online to reduce initial processing time by 2 to 4 weeks.

How much does it cost to apply for US citizenship?

$710 online or $760 by mail — both include biometrics. Applicants age 75 or older pay the same fee but skip the biometrics appointment. Low-income applicants can apply for a reduced fee ($380) or full waiver using Form I-912.

Can I apply for citizenship with a criminal record?

Yes, in many cases. Minor violations — most traffic tickets, single old DUI without aggravating factors — do not automatically bar citizenship. However, crimes involving moral turpitude, multiple DUI convictions, drug offenses, domestic violence, or fraud typically do. Always disclose every arrest and consult an immigration attorney if you have any criminal history.

What happens if I fail the civics test?

USCIS reschedules a retest 60 to 90 days later. You take the retest only on the failed portion — English or civics, not both if you passed one. Failing the retest results in denial of your N-400 application. You can reapply, but you must pay the full filing fee again.

Do I need an immigration attorney to apply for citizenship?

No. USCIS accepts self-filed applications. Most straightforward applications — 5-year LPR path, no criminal history, no extended foreign travel — do not require an attorney. Consider hiring an immigration attorney if your case involves criminal history, prior deportation proceedings, past immigration violations, complex travel history, or a previous N-400 denial.

Conclusion

Applying for US citizenship in 2026 is a straightforward process if you follow the right steps in the right order. Confirm your eligibility, gather your documents, file Form N-400 using the current 01/20/2025 edition, and prepare seriously for the updated 128-question civics test. The entire journey from filing to oath ceremony takes 6 to 14 months depending on your USCIS field office — but every month you delay is a month added to the end of that timeline.

The path to citizenship is one of the most significant legal steps you will take. Mistakes on your N-400, missed appointments, or undisclosed criminal history can set you back by months or cost you the application entirely. If your case is straightforward — 5-year LPR path, clean record, no extended foreign travel — you can file confidently on your own at myaccount.uscis.gov for $710. If your case involves any complexity, consult an immigration attorney before filing. Either way, the sooner you file, the sooner you take the Oath of Allegiance and receive your Certificate of Naturalization.