What is U.S. citizenship through naturalization?

U.S. citizenship through naturalization is the process in which a lawful permanent resident files Form N-400 and is reviewed by USCIS for residence, physical presence, good moral character, English, civics, and oath requirements.

Which civics test applies to N-400 after October 20, 2025?

If Form N-400 is filed on or after October 20, 2025, the 2025 civics test applies: up to 20 questions from a list of 128, with 12 correct answers required to pass. Applications filed before that date use the 2008 version.

What English test exceptions exist for naturalization?

Age-based exceptions include 50/20 and 55/15: the applicant is exempt from the English test but usually still takes the civics test with an interpreter. For 65/20, special consideration applies. A medical exception may be requested with Form N-648.

What happens if an applicant fails English or the civics test?

USCIS usually schedules a second opportunity within 60–90 days and retests only the failed part. If the applicant fails the retest or has a separate eligibility problem, N-400 may be denied.

OUR IMMIGRATION SERVICESCitizenship and naturalisation in the USA

Author: Attorney Vitaly Malyuk. License: MO No. 73573

Updated: May 6, 2026

Your Path to U.S. Citizenship: N-400, Interview, Test, and Legal Strategy

Naturalization is not just about completing Form N-400. USCIS reviews your period of permanent residence, travel outside the United States, tax history, family history, criminal record, good moral character, English proficiency, and readiness for the civics test. Starting October 20, 2025, the civics test changed, so preparation must account for the new version of the exam, available exceptions, and potential denial risks. Arvian Law Firm helps assess eligibility, prepare supporting evidence, and navigate the process without critical mistakes.

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U.S. Citizenship Through Naturalization: Requirements, Form N-400, USCIS Interview, and Citizenship Test

In brief: U.S. citizenship through naturalization is usually available to a lawful permanent resident after 5 years with a green card, or after 3 years in marriage to a U.S. citizen, if the applicant meets the residence, physical presence, good moral character, English, U.S. citizenship test, and oath requirements.

Main risk: Form N-400 can expose old problems: long trips, taxes, criminal records, child support, mistakes in prior immigration forms, or weak evidence of marriage in a 3-year marriage-based case.

Naturalization in the United States allows a lawful permanent resident to become a U.S. citizen, but U.S. Citizenship and Immigration Services (USCIS) reviews far more than the length of time a person has held a green card. The decision can depend on continuous residence, physical presence, trips outside the United States, taxes, family obligations, criminal history, good moral character, English ability, the civics test, and readiness to take the Oath of Allegiance. A mistake in any of these areas can lead to a request for evidence (RFE), continued review after the interview, a retest, or a denial.

If you are preparing Form N-400 — the naturalization application — it is important to choose the right filing time, check risks before the interview, and understand which version of the civics test applies after October 20, 2025. Before filing, the applicant should compare the N-400 answers with travel records, tax history, prior immigration filings, court records, and family documents so that avoidable conflicts are addressed before USCIS reviews the case.

This page is most useful for green card holders preparing Form N-400, spouses of U.S. citizens considering the 3-year rule, and applicants who need to review travel, tax, criminal, child-support, or test-related risks before filing.

Page Contents

Requirements for U.S. Citizenship Through Naturalization

U.S. citizenship through naturalization is the process by which a lawful permanent resident becomes a U.S. citizen after meeting the requirements of the Immigration and Nationality Act (INA). In most cases, an applicant files Form N-400 after five years as a permanent resident. A separate path exists for spouses of U.S. citizens: the applicant may be able to file under the 3-year rule if they have been living in marital union with the same U.S. citizen spouse during the required period and the spouse has been a U.S. citizen for that period. In both scenarios, it is not enough to simply wait for the date. The applicant must prove continuous residence, physical presence, residence in the proper state or USCIS district, good moral character, knowledge of English and civics, and readiness to take the Oath of Allegiance.

A common mistake is filing N-400 as soon as the 3-year or 5-year period arrives without checking travel, taxes, family circumstances, and prior immigration answers. USCIS looks more broadly: long trips, tax returns, alimony, child support, criminal records, immigration history, Selective Service for certain men, prior statements to government agencies, and even wording in older forms can affect the result. A legal review before filing is often safer and less expensive than trying to fix a problem after a Notice of Intent to Deny (NOID) or denial.

Basis	When filing is usually possible	Key review	Risk
5 years as a permanent resident	Up to 90 days before completing the 5-year continuous residence requirement, if all other conditions are already met.	30 months of physical presence, trips, taxes, good moral character.	Filing too early, trips longer than 6 months, tax inconsistencies.
3 years as a permanent resident while living in marital union with a U.S. citizen spouse	Up to 90 days before completing the 3-year continuous residence requirement.	Valid marriage, joint residence, spouse’s status as a U.S. citizen.	Separate residence, weak marriage evidence, divorce before the oath.
Military service	Under special INA rules, sometimes without the standard period of permanent resident status.	Period of service, character of discharge, admissibility, bars to naturalization, and good moral character.	Wrong filing category and incomplete service records.

What should be checked before filing: filing eligibility date, trips, taxes, criminal history, family situation, prior immigration forms, and possible reasons for an RFE or denial.

Form N-400 for U.S. Citizenship: Why the Application Is the Center of the Case

Form N-400 is not a formality. At the interview, the USCIS officer compares the answers in the application with documents, biometrics, the immigration file, tax history, and the applicant’s oral answers. An error in addresses, trips, or an old criminal issue may look like an attempt to hide a fact, even if the applicant simply misunderstood the question. After filing N-400, the applicant must be ready to explain every important detail: travel dates, employment, marital status, children, tax returns, alimony, arrests, citations, membership in organizations, and any prior claims of citizenship or voting rights.

For applications filed on or after October 20, 2025, the filing date is especially important because it determines which version of the civics test applies. Before filing quickly, the applicant should check eligibility, test burden, English ability, age-based exceptions, a possible medical exception, travel history, and good moral character.

Pre-filing review. The attorney reviews eligibility, permanent resident dates, trips, physical presence, the family-based basis, criminal and tax history, and supporting documents.

N-400 preparation. All sections of the application are completed, evidence is gathered, and names, dates, addresses, and answers about good moral character and possible immigration issues are checked.

Filing and biometrics. After the receipt notice, the applicant tracks the case status and receives either a biometrics notice or a notice that prior biometrics will be reused.

Interview and test. USCIS asks questions about the application and background, then administers the English test and civics test unless an exception or waiver applies.

Decision and oath. Possible outcomes include approval, continued review or an RFE, a retest, or denial. The applicant becomes a citizen after taking the Oath of Allegiance.

U.S. Citizenship Test After October 20, 2025

Starting October 20, 2025, the version of the civics test depends on the filing date of Form N-400. USCIS applies the 2025 version to applicants who filed Form N-400 on or after October 20, 2025. The test is oral: the officer asks up to 20 questions from a list of 128. To pass, the applicant must answer 12 questions correctly. For N-400 applications filed before October 20, 2025, the 2008 version applies: up to 10 questions from a list of 100, with 6 correct answers required to pass.

The change does not eliminate the English test. Unless an exception applies, the applicant must pass speaking, reading, and writing. Speaking is assessed through answers to questions about N-400 and eligibility. Reading usually requires reading one of three presented sentences. Writing requires writing one of three dictated sentences in a way the officer can understand. Preparation must therefore be tied to the real interview: memorizing civics answers is not enough if the applicant cannot explain trips, work, taxes, or family circumstances in English.

N-400 filing date	Test version	Format	Passing score
Before October 20, 2025	2008 civics test	Up to 10 questions from 100	6 correct answers
October 20, 2025 or later	2025 civics test	Up to 20 questions from 128	12 correct answers

Chart: How the Test Burden Changed

2008 test: maximum questions

2025 test: maximum questions

2008 test: question pool

100

2025 test: question pool

128

The 2025 version increases both the possible number of questions asked at the interview and the size of the study pool.

Exceptions: English Exemptions, Special Consideration, N-648, and Accommodations

Not every applicant must take the tests in the same way. USCIS provides age-based exceptions from the English requirement: the 50/20 and 55/15 rules. If the applicant is 50 or older and has lived as a lawful permanent resident for at least 20 years, the applicant may be exempt from the English test, but the civics test is still required — usually in the applicant’s chosen language with an interpreter. Similarly, an applicant who is 55 or older with 15 years as a permanent resident may qualify for an English exemption. For applicants age 65 or older with 20 years as a lawful permanent resident, special consideration applies to the civics test: the test is still required, but the applicant uses a reduced set of specially marked questions.

There is also Form N-648, Medical Certification for Disability Exceptions. It applies when a physical impairment, developmental disability, or mental impairment prevents the applicant from meeting the English and/or civics requirements. Ordinary illiteracy, age alone, or weak preparation is not the same as a medical exception. N-648 must be completed by a qualified medical professional and must logically explain how the condition affects the applicant’s ability to meet the requirements. A weak or template-style N-648 can lead to a denial of the waiver and problems at the interview.

Category	What changes	What remains	Documents
50/20	Exemption from the English test.	Civics test with an interpreter.	Proof of age and 20 years as a permanent resident.
55/15	Exemption from the English test.	Civics test with an interpreter.	Proof of age and 15 years as a permanent resident.
65/20	Special consideration for civics.	Interview and eligibility review.	Proof of age and 20 years as a permanent resident.
N-648	Possible exemption from English, civics, or both requirements.	USCIS still reviews naturalization eligibility and oath-related issues.	Medical certification from an authorized professional.

Accommodations are not the same as a waiver. Accommodations help an applicant complete the process with a disability, for example through a modified interview setup, accessibility assistance, or a different communication format. Before filing, it is important to understand whether the applicant needs an exception from a requirement, an accommodation for the interview process, or standard preparation for the English and civics tests.

USCIS Citizenship Interview: What the Officer Actually Reviews

The naturalization interview is not just an exam. At the interview, the officer verifies identity, places the applicant under oath, and reviews N-400 answers, residence history, trips, work, marital status, children, taxes, arrests, citations, membership in organizations, and readiness to support the U.S. Constitution. Even if an applicant has memorized the civics answers perfectly, the case may be continued or denied if the documents do not match the answers.

Interview preparation usually has three practical parts. The first is checking eligibility on the N-400 filing date and on the oath date. The second is preparing documents that support disputed or sensitive facts. The third is preparing answers to the officer’s questions so the applicant can explain their history calmly and consistently. For clients with criminal records, tax debt, long trips, divorce, child support, past asylum, Temporary Protected Status (TPS), removal history, or mistakes in old immigration forms, interview preparation should be individualized.

Line-by-line N-400 review. We check that the client’s oral answers match the application and documents.

Mock interview. We test answers on filing eligibility, trips, taxes, good moral character, spoken English, and civics.

Evidence packet. We prepare documents for issues that may raise questions: court dispositions, tax transcripts, proof of marital union, travel records, and proof of child support payments.

What happens if the applicant does not pass the test? If the applicant does not pass English, civics, or one part of the test, USCIS usually schedules a second opportunity within 60–90 days. Only the failed portion is tested again. But if the problem is not only the exam and instead involves eligibility for naturalization, USCIS may deny the case on an independent ground.

U.S. Citizenship Denial Risks: Where N-400 Often Becomes a Complex Case

Denial risks should be evaluated before filing N-400 because the application itself can expose old immigration, tax, or criminal problems. An N-400 denial is often not caused by the form alone, but by a problem that already existed before filing. USCIS must deny the case if the applicant does not meet the legal requirements. In addition, if the applicant is in removal proceedings, separate limits apply to naturalization review. Before filing, it is important to understand whether N-400 may uncover an old problem and lead not only to a denial, but also to more serious immigration consequences.

Good moral character is one of the central issues. USCIS evaluates it during the relevant statutory period: usually five years, or three years for some spouses of U.S. citizens. But the officer is not always limited to that period if older conduct affects current moral character or shows a lack of reform. Criminal history, controlled substance issues, DUI patterns, false testimony, unlawful voting, a false claim to U.S. citizenship, tax problems, unpaid child support, and probation violations can all become critical.

Risk	Why it matters	What to check	How to prepare
Long trips	They may disrupt continuous residence or physical presence.	All entries/exits, I-94, passports, tickets.	Travel table and evidence of ties to the United States.
Criminal records and citations	They may affect good moral character or deportability.	Certified court dispositions for each incident.	Legal analysis before filing N-400.
Taxes	Nonresident filing, tax debt, or missing returns can raise questions.	IRS transcripts, payment plans, filing history.	Correction documents and explanation.
Marriage to a U.S. citizen	The 3-year category requires an ongoing marital union.	Joint documents, addresses, taxes, children, accounts.	Evidence packet proving a real marriage.

Arvian’s approach to complex N-400 cases: final decisions belong to USCIS. Our role is to identify denial risks, organize evidence, and prepare the applicant for the questions likely to arise at the interview.

Naturalization Legal Representation at Arvian Law Firm

Representation begins with a legal review of eligibility and risk. During the consultation, the attorney reviews the filing category, possible N-400 filing date, green card history, trips, taxes, criminal records, family-based immigration issues, prior immigration filings, readiness for English and civics, and possible exceptions. After the review, we confirm the filing window, identify missing documents, address risks before submitting N-400, and prepare the applicant for the interview.

For straightforward cases, we help prepare a consistent application without contradictions in dates, addresses, trips, and documents. For complex cases, we prepare the records USCIS is likely to examine: court records, tax transcripts, proof of residence, proof of marital union, N-648 coordination, travel reconstruction, and explanatory materials. If USCIS requests additional evidence, we prepare the response or supplemental materials after the interview.

When to request a legal review: if there were long trips, criminal records or citations, tax debt, child support, divorce in the 3-year category, mistakes in old immigration forms, limited English, medical grounds for N-648, or an already scheduled USCIS interview.

Questions and Answers About U.S. Citizenship Through Naturalization

What are the main requirements for U.S. citizenship through naturalization?

In general, the applicant must be at least 18 years old, hold lawful permanent resident status, meet continuous residence, prove physical presence, live for at least 3 months in the state or USCIS district, show good moral character, pass the English test and civics test unless an exception applies, and take the Oath of Allegiance.

Can I file N-400 if I have a criminal record?

Sometimes yes, but it requires analysis before filing. It is important to know the exact charge, date, outcome, probation, sentence, expungement, immigration consequences, and good moral character period. Even closed or old cases must be disclosed correctly.

Do I need to speak fluent English?

Academic-level English is not required. USCIS checks whether the applicant can understand and answer N-400 questions, read simple sentences, and write simple sentences. However, the applicant must communicate clearly enough unless an English exemption or medical waiver applies.

Which civics test will I take after October 20, 2025?

If Form N-400 is filed on or after October 20, 2025, the 2025 civics test applies: an oral test with up to 20 questions from a list of 128, requiring 12 correct answers. If the application was filed before that date, the 2008 version applies.

What happens if I fail the English or civics test?

USCIS usually gives a second opportunity within 60–90 days. Only the failed part is retested. If the applicant does not pass the retest, or if there is a separate eligibility problem, N-400 may be denied.

Can I travel abroad while N-400 is pending?

Short trips are usually possible, but the applicant must preserve continuous residence, physical presence, and readiness to appear for biometrics, the interview, and the oath. Long trips after filing can create risk, especially if they look like relocation outside the United States.

How much does it cost to file N-400?

The filing fee should be checked on the USCIS Form N-400 page and through the USCIS Fee Calculator immediately before filing, because USCIS fees and payment rules can change. Some applicants may also qualify for a fee waiver or reduced fee depending on income and eligibility rules.

Official USCIS Sources on Naturalization and Form N-400

Before filing, always check current forms, fees, and rules on official USCIS pages. This is especially important after changes to the civics test and updates to the USCIS Policy Manual.