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Law Offices of
Shawn Sedaghat

Practice Area

Citizenship & Naturalization

Written by Shawn S. Sedaghat — California Bar #188763, admitted 1997. Last reviewed: June 2026.

Becoming a United States Citizen Through Naturalization

Naturalization is the process by which a lawful permanent resident becomes a U.S. citizen. Most LPRs are eligible after 5 years of permanent residence (3 years if the spouse of a U.S. citizen). Naturalization requires good moral character, continuous residence, physical presence, English-language ability, and civics knowledge. The Law Offices of Shawn S. Sedaghat has 30+ years of experience handling N-400 applications — including complex cases involving prior criminal issues, taxes, child support, selective service registration, and prior immigration violations. Call (818) 382-3333 for a free consultation.

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Overview

  • Form N-400 application filed with USCIS
  • Eligibility: 5 years of LPR status (3 years if married to U.S. citizen the entire time)
  • Continuous residence + physical presence requirements (half the eligibility period inside the U.S.)
  • English and civics tests at the interview (waivers available for age/disability)
  • Oath of allegiance ceremony — naturalization is complete at the oath

Eligibility Requirements

  • Lawful permanent resident for at least 5 years (3 years if married to U.S. citizen)
  • Continuous residence in the U.S. for the entire eligibility period (trips of 6+ months may break continuity)
  • Physical presence in U.S. at least half the eligibility period (30 months out of 5 years; 18 months out of 3 years)
  • Good moral character during the eligibility period
  • Able to read, write, and speak basic English (waivers for older, long-term LPRs)
  • Knowledge of U.S. history and government (civics test)
  • Age 18 or older at filing
  • Selective Service registration (males who were LPRs aged 18-26)

Our Process

Eligibility Review

Confirm 5-year (or 3-year) LPR period, continuous residence, physical presence, and good moral character. Review prior criminal history, tax filings, child support obligations, and prior immigration history.

N-400 Filing

File Form N-400 with USCIS, fee of $760 (as of 2026, subject to change). Biometrics appointment typically scheduled within 4-8 weeks.

Interview Preparation

Practice the civics test (10 questions from a pool of 100; must answer 6 correctly), basic English reading/writing/speaking, and review the N-400 application for any potential issues the officer may raise.

USCIS Interview

Attend the in-person interview at the local USCIS field office. Officer reviews the N-400 line by line, administers the civics test, evaluates English, and makes a decision (approve, continue, or deny).

Oath of Allegiance

Approved applicants receive a scheduled oath ceremony, typically within 6-8 weeks of approval. Naturalization is complete at the oath; the Certificate of Naturalization is issued at the ceremony.

Document Checklist

Form N-400 with biographic and travel history
Permanent resident card (green card)
Passport biographic page and all entry/exit stamps for 5 years
All travel records (flights, ferry, etc.) for 5 years showing every trip outside U.S.
Selective Service registration documentation (if applicable)
Tax returns and IRS transcripts for 5 years (3 for spouse-of-USC cases)
Marriage certificate (if applying as spouse of U.S. citizen)
Divorce decree(s) for any prior marriages of either spouse
Criminal records (court dispositions, police clearances) for any arrests
Two passport-style photos

Key Benefits

  • Right to vote in U.S. federal elections
  • U.S. passport — easier international travel and protection abroad
  • Petition for parents, siblings, and married children (categories unavailable to LPRs)
  • Federal jobs and security clearances (most require citizenship)
  • Eligibility for federal benefits that exclude non-citizens
  • Protection from deportation in nearly all circumstances
  • Ability to leave the U.S. for any length of time without losing status

Frequently Asked Questions

From N-400 filing to oath ceremony, typically 8-14 months depending on the USCIS field office. Some Los Angeles cases run faster (6-10 months); others run slower. The exact time depends on the field office's workload and any complications in your case.

USCIS evaluates your conduct during the eligibility period (5 or 3 years). Permanent bars include murder, aggravated felonies, and a few other categories. Conditional bars include arrests, DUIs, unpaid child support, unpaid taxes, false claims to U.S. citizenship, and failure to register for Selective Service (males 18-26). Most issues can be addressed but require careful handling.

A single DUI generally does not bar naturalization but may prompt USCIS to scrutinize the rest of the moral-character period. Multiple DUIs, a DUI with injury, or a DUI combined with other infractions raise serious concerns. Honest disclosure plus mitigating documentation (treatment completion, character letters) is critical.

If you fail at the interview, USCIS schedules a second interview 60-90 days later for a re-test on whichever portion you failed. Failing the second test results in N-400 denial — but you can re-file with no waiting period. We do extensive interview preparation precisely to avoid this outcome.

It depends on your country of origin. The U.S. allows dual citizenship. Some countries (e.g., India) automatically revoke their citizenship when you become a U.S. citizen. Others (e.g., Iran, Mexico, Canada, U.K., most EU countries) allow dual citizenship. We discuss this individually with each client.

Trips of less than 6 months do not break continuous residence. Trips of 6-12 months presumptively break continuity (rebuttable with evidence of U.S. ties). Trips of 12+ months conclusively break continuity (the clock restarts after re-entry). N-470 preserves residence for certain employment categories.

Questions About Your Case?

Every immigration case is unique. Let our experienced attorneys evaluate your specific situation and recommend the best path forward.
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With over 30 years of experience, we have helped thousands of clients navigate the complex U.S. immigration system with confidence and success.
ATTORNEY ADVERTISING. The information on this website is for general informational purposes only and does not constitute legal advice or the formation of an attorney-client relationship. Prior results do not guarantee a similar outcome. An attorney-client relationship is only established through a formal, written agreement with our firm. Your use of this site is at your own risk.
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Our Locations

📍Los Angeles Office
18751 Ventura Blvd #200, Tarzana, CA 91356
(818) 382-3333

📍Orange County Office
300 Spectrum Center Dr, Suite 400, Irvine, CA 92618 (949) 272-1199

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