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Becoming a U.S. citizen is the culmination of a journey that began years earlier, when the permanent resident first set foot in the United States with a green card in hand. The naturalization test is not a symbolic formality — it is the technical filter USCIS uses to confirm that applicants have functional English and understand the civic foundations of the country they are about to adopt as their own. Thorough preparation makes the difference between a smooth interview and a postponement that can cost months on the calendar and additional fees.
This guide consolidates everything you need to know in 2026 about the exam, the current fee, age-based exceptions, the medical waiver via Form N-648, and the study strategy that gets real applicants to approval — all based on current U.S. Citizenship and Immigration Services rules and the USCIS Policy Manual.
Who Can Apply for Naturalization
Before thinking about the test, you must confirm eligibility. The general rule is the five-year rule: a lawful permanent resident must have held the green card for at least five years, with physical presence of at least thirty months within that period and continuous residence in the USCIS state or district for at least three months before filing.
For spouses of U.S. citizens, the window is shortened to three years, provided the marriage is still active and the American spouse held citizenship throughout that entire period. Special rules also apply to military members, widows and widowers of citizens, and derivative children.
The applicant must demonstrate good moral character during the five years preceding the petition, which involves a criminal background review, up-to-date tax obligations, Selective Service registration (men between 18 and 26 during the residency period), and the absence of immigration fraud.
Form N-400 and the Current Fee
The formal naturalization petition is filed using Form N-400, which can be submitted electronically through the myUSCIS portal or by paper. Since April 1, 2024, the N-400 fee is $760 for online submission and the same amount by paper, with no separate biometrics charge for most applicants. Fee reductions and waivers are available for applicants with income below 150% and 400% of the federal poverty level, formalized through Forms I-912 and I-942.
After filing, USCIS issues a receipt, schedules biometrics (when applicable), and finally summons the applicant for an interview that combines the English test, the civics test, and a review of the facts declared on the N-400.
Exam Structure
The naturalization test is divided into two sections: English proficiency and civics knowledge. Both are administered by the immigration officer during the interview itself, in a single session that typically lasts between twenty and forty minutes.
English Section
The English exam measures three distinct skills:
- Speaking and comprehension: assessed throughout the entire interview by the applicant’s ability to understand questions and respond clearly to the officer.
- Reading: the applicant must read aloud one of up to three sentences presented. Getting one of the three correct is sufficient.
- Writing: the applicant must correctly write one of up to three dictated sentences. Getting one of the three correct is sufficient.
USCIS publishes official reading and writing vocabulary lists that define the universe of what may be tested: terms covering civics, American geography, national holidays, and common verbs used in institutional contexts.
Civics Section
The current version of the civics test is the 2008 version, with a bank of 100 questions. During the interview, the officer asks ten questions chosen at random from that bank, and the applicant must answer six correctly to pass. Topics cover American government (principles of democracy, system of government, rights and responsibilities), U.S. history (colonial period, independence, the 19th century, modern history), and integrated civics (geography, symbols, holidays).
It is worth noting a common point of confusion: in December 2020, the prior administration attempted to implement an expanded version with 128 questions requiring twelve correct answers out of twenty. That version was revoked in February 2021 and never became the standard. Outdated study materials still reference it — ignore them.
Important Exceptions Few People Know About
USCIS provides three special rules that reduce the exam burden for older applicants with long-term residency:
- 50/20 Rule: applicants aged 50 or older with at least 20 years as a permanent resident may take the civics test in their native language and are exempt from the English section.
- 55/15 Rule: applicants aged 55 or older with at least 15 years as a permanent resident may also take civics in their native language without an English exam.
- 65/20 Rule: applicants aged 65 or older with at least 20 years as a permanent resident receive a simplified version of the civics test, drawn from a reduced bank of 20 questions marked with an asterisk in the official materials.
For applicants with documented physical, mental, or developmental disabilities, there is also the medical waiver formalized through Form N-648, completed by a licensed physician or psychologist. When approved, it exempts the applicant from the English and/or civics tests depending on the nature of the documented limitation.
A Preparation Strategy That Works
Effective studying is less about time at a desk and more about structured exposure. Start with the official USCIS materials, which are freely available and include a study guide, the list of 100 questions with answers, reading and writing vocabulary, and interview simulation videos. Everything is consolidated in the Citizenship Resource Center section of the agency’s website.
Practice English in an immigration context. General vocabulary is not enough — the officer will use terms such as oath of allegiance, permanent resident, civic duty, and continuous residence. Free in-person classes offered by public libraries, state adult education programs, and nonprofit community organizations typically use exactly this institutional vocabulary.
Conduct mock interviews out loud, ideally recorded. The real interview is spoken, not written — those who study only in silence often find their pronunciation falters under pressure. Having someone play the role of the officer and randomly draw ten questions from the bank is an extremely effective exercise for reducing anxiety.
What Happens If You Fail
If the applicant fails any part of the test on the first attempt, USCIS schedules a second interview within 60 to 90 days at no additional charge. The applicant retakes only the section in which they failed. Failing the second attempt results in a denial of the N-400, but does not prevent a new petition from being filed later.
After Approval
Once the N-400 is approved, the applicant is summoned for an oath ceremony, at which they take the Oath of Allegiance and receive their certificate of naturalization. That certificate is the document that proves citizenship for all purposes, including applying for a U.S. passport and registering to vote. In some districts, the ceremony is held on the same day as the interview; in others, it takes weeks to months.
The road to that moment is demanding but predictable. Master the official materials, practice English in context, understand the exceptions that may apply to your case, and treat the N-400 with the same seriousness you dedicated to your green card. U.S. citizenship is the reward for those who prepare methodically.
Victoria Harper
Editor-in-Chief
Leading journalism and editorial content at Visto n’ Visa, Victoria helps make immigration topics clear, trustworthy, and easy to understand. Her focus is on delivering useful, human, and relevant content for people exploring new paths abroad.
