From green card to US citizenship — complete timeline

Once you have a green card (LPR status), the path to US citizenship is well-defined. The standard wait is 5 years, reduced to 3 years if married to a US citizen the entire time.

Eligibility for naturalization

You must:

1. Be 18+ years old
2. Have green card for 5 years (3 if married to USC and living together)
3. Have physical presence in US for 30 months of last 5 years (18 months if 3-year rule)
4. Have continuous residence (no trip outside US > 6 months without good reason)
5. Live in the US state/USCIS district where you file for 3+ months
6. Have good moral character (no major crimes, taxes filed, etc.)
7. Pass English test (reading, writing, speaking) — with exceptions
8. Pass civics test (10 questions, must answer 6 correctly)
9. Be willing to take Oath of Allegiance

English test exceptions

• Age 50+ with green card 20+ years (50/20 rule) — exempt from English
• Age 55+ with green card 15+ years (55/15 rule) — exempt from English
• Age 65+ with green card 20+ years (65/20 rule) — exempt from English + simplified civics test

Form N-400 process

Step 1: File Form N-400

• File online via my.uscis.gov — strongly recommended for tracking
• Or file paper at appropriate USCIS Lockbox
• Fee: $760 (includes biometrics)
• Fee waiver available via Form I-912 (low income)

Step 2: Biometrics appointment (4-8 weeks)

• USCIS sends appointment notice
• Local Application Support Center
• Fingerprints, photo, signature

Step 3: Wait for interview (10-15 months current backlog)

• USCIS sends interview appointment notice
• Time to study civics + English

Step 4: Interview + tests

• Interview: USCIS officer reviews application, asks questions about your background
• English test: read a sentence, write a sentence dictated, speak with officer
• Civics test: officer asks 10 questions from study list; you must answer 6 correctly

Step 5: Decision (same day or 30-120 days)

• If approved: oath ceremony scheduled
• If denied: written reasons, can appeal via Form N-336

Step 6: Oath of Allegiance ceremony

• Could be same day as interview or scheduled later
• Take Oath of Allegiance
• Receive Certificate of Naturalization
• You are a US citizen!

Study materials (FREE from USCIS)

• Civics Practice Test: uscis.gov/citizenship/learn-about-citizenship
• 100 civics questions + answers
• Civics Test Flashcards (mobile app)
• English practice questions

Common pitfalls

• ❌ Returning to home country while application pending without notification (can affect continuous residence)
• ❌ Not filing taxes during 5-year period (perceived as bad moral character)
• ❌ Missing the interview without rescheduling
• ❌ Lying on N-400 (any prior arrests, marriages, departures must be disclosed)
• ❌ Forgetting to update address via Form AR-11 (within 10 days of move)

Special situations

Spouse abused by USC during marriage

• VAWA-based naturalization: 3 years required even after divorce

USC parent died after green card filed

• Naturalize despite parent’s death

Selective Service registration

• Males 18-25 living in US (any status) MUST register for Selective Service
• Failure can affect N-400 approval

After citizenship

• US passport: apply via travel.state.gov ($165 fee)
• Voter registration: register at vote.gov — automatic in some states
• Petition for family members: file Form I-130 for parents, siblings, children, spouses
• Update Social Security: notify SSA of new status

Resources

• USCIS N-400: uscis.gov/n-400
• myUSCIS account: my.uscis.gov
• USCIS Citizenship Resource Center: uscis.gov/citizenship
• Free citizenship prep: USCIS Citizenship Pilot Sites, CHIRLA, NALEO, local libraries

Last verified: 2026-05-25.

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Related procedural information

• Consulate of your country in the US — passport renewal, consular ID, document apostille
• ITIN — file federal taxes without SSN — required regardless of immigration status
• USCIS form library — federal immigration forms (I-130, I-485, N-400, etc.)
• Find an immigration attorney — pro bono lists + AILA + BIA-recognized
• Know Your Rights — ICE encounters — constitutional protections

General procedural information based on official sources. Not personalized legal advice.