Naturalization and Citizenship: Eligibility Guide

Naturalization eligibility under INA 316 requires satisfying multiple statutory requirements simultaneously. An attorney or paralegal reviewing an N 400 application evaluates each requirement independently because failing any one of them results in denial. Age requirement: the applicant must be at least 18 years old at the time of filing Form N 400. Children may acquire citizenship automatically in some circumstances, or may apply through their LPR parent's naturalization, but those are separate pathways analyzed under INA 320 and INA 322 rather than the N 400 process. Lawful permanent resident status: the applicant must have held LPR status continuously from the time of admission as a permanent resident through the date of naturalization. Conditional permanent residence obtained through a spousal petition (two year green card) must be removed before the N 400 is filed, unless filing during the conditional period is permissible under specific circumstances. Statutory residence period: under INA 316(a), the general requirement is five years as an LPR immediately preceding the N 400 filing date. Under INA 319(a), spouses of U.S. citizens who have been married to and living in marital union with the citizen spouse for three years, and where the citizen spouse has been a citizen for those three years, may apply after three years as an LPR. This three year exception is one of the most significant eligibility differentiators in naturalization practice. Age 50 or 55 exemptions from the English requirement: applicants who have been LPRs for 20 years and are at least 50 years old, or who have been LPRs for 15 years and are at least 55 years old, are exempt from the English language test under INA 312(b). They must still pass the civics test, which may be taken through an interpreter. Good moral character: INA 316(a)(3) requires demonstrating good moral character for the statutory period (five years or three years as applicable) through the oath ceremony. Good moral character is defined in part by INA 101(f) and has been interpreted through extensive case law. Failure to meet this requirement is a common basis for N 400 denial.

Two distinct but related requirements govern an applicant's ties to the United States during the statutory period: continuous residence and physical presence. Continuous residence under INA 316(a)(1) means the applicant has maintained their principal domicile in the United States throughout the statutory period. Absences disrupt continuous residence under specific circumstances. A single absence of six months or more but less than one year creates a rebuttable presumption that continuous residence has been broken under INA 316(b). The applicant may rebut this presumption by establishing that they did not abandon their U.S. residence during the absence (for example, by showing continued employment, maintained housing, payment of U.S. taxes, and a fixed intent to return). A single absence of one year or more breaks continuous residence presumptively and requires the applicant to meet the rebuttable presumption standard or, if the absence was for qualifying employment under INA 316(b), to have preserved their residency by filing an N 470 (Application to Preserve Residence for Naturalization Purposes) before departing. Physical presence under INA 316(a)(3) requires the applicant to have been physically present in the United States for at least half of the statutory period: 30 months out of the five year period for general applicants, or 18 months out of the three year period for spousal applicants. Physical presence is calculated differently from continuous residence: every day spent outside the United States is counted against physical presence, without the six month threshold that applies to continuous residence. Even short frequent trips can erode the physical presence count. Calculating physical presence requires tallying all absences from the United States from the date of LPR admission through the N 400 filing date. USCIS reviews passport stamps, I 94 records, and airline records in making this determination. An applicant who is borderline on physical presence should carefully calculate their days before filing to avoid a denial for failure to meet the requirement. The continuous residence period may begin no earlier than 90 days before the statutory period is complete under INA 334(a). For a five year applicant, the earliest permissible filing date is four years and nine months after the date LPR status was granted.

USCIS administers two tests at the naturalization interview: an English language test and a civics test. Both are required unless an exemption applies. The English language test under INA 312(a)(1) assesses the applicant's ability to read, write, speak, and understand English. The reading test requires the applicant to read aloud one of three sentences correctly. The writing test requires the applicant to write one of three sentences correctly. Speaking ability is assessed throughout the interview. An applicant who cannot communicate in basic English at the interview level will fail the English test and the naturalization interview overall. English language exemptions apply to: persons 50 years or older who have lived in the United States as LPRs for 20 years; persons 55 or older who have lived as LPRs for 15 years; and persons with medical disabilities under Form N 648 who have a certified medical condition that affects their ability to learn English. The civics test under INA 312(a)(2) covers U.S. history and government. USCIS provides a list of 100 potential civics questions and answers, available publicly on the USCIS website. The officer asks the applicant up to 10 questions from the list, and the applicant must correctly answer at least six to pass. Officers typically stop asking questions once the applicant has answered six correctly or has made four incorrect answers. Applicants 65 years or older who have been LPRs for at least 20 years qualify for the modified civics test, where USCIS asks only from a shorter list of 20 questions marked with asterisks on the 100 question list. These applicants must still answer six of 10 questions correctly from the shorter list. An applicant who fails either the English or civics test is given a second chance within 60 to 90 days of the initial interview. If the applicant fails on the second attempt, the N 400 is denied. The applicant may refile.

After filing Form N 400 and completing biometrics, USCIS schedules a naturalization interview at the local field office with jurisdiction over the applicant's residential address. Interview scheduling varies by field office; current wait times range from two months to over a year after filing in backlogged offices. At the interview, a USCIS officer reviews the N 400 application, verifies identity and LPR status, asks questions about eligibility and good moral character, administers the English and civics tests, and decides whether to approve, continue, or deny the application. The officer may ask detailed questions about information disclosed on the N 400, including: travel history; any criminal history; tax filing compliance; registration with the Selective Service (for males who lived in the United States between ages 18 and 26, regardless of immigration status); affiliations with organizations; support of the U.S. Constitution; and attachment to the principles of the Constitution. Applicants should review their N 400 thoroughly before the interview and be prepared to explain all answers completely and accurately. If the officer approves the application at the interview, the applicant is typically given a date for the oath ceremony. Some applicants are approved at the interview and scheduled for an oath ceremony within weeks; others wait months. If the officer needs to continue the application for additional evidence or investigation, the applicant receives a written notice of the continuation and what is needed to complete adjudication. If the officer denies the application, the applicant receives a written denial notice explaining the grounds and information about the right to request a hearing before a USCIS officer under INA 336(a) within 30 days. USCIS field offices process N 400 applications under varying local procedures; some offices are more efficient and thorough than others. An attorney familiar with the practices at the specific field office can help the applicant prepare appropriately.

The oath ceremony is the final step in the naturalization process. At the ceremony, the applicant takes the Oath of Allegiance to the United States under INA 337(a), formally renouncing allegiance to foreign sovereigns and pledging loyalty to the United States. After taking the oath, the applicant receives a Certificate of Naturalization, which is the official document evidencing U.S. citizenship. The Oath of Allegiance reads in part: I hereby declare, on oath, that I absolutely and entirely renounce and abjure all allegiance and fidelity to any foreign prince, potentate, state, or sovereignty, of whom or which I have heretofore been a subject or citizen. Applicants with sincere religious or conscientious objection to bearing arms may take a modified oath omitting the phrase about bearing arms on behalf of the United States. Oath ceremonies are conducted in two formats: administrative ceremonies at USCIS field offices (where the USCIS officer administers the oath during the interview or at a separate USCIS ceremony); and judicial ceremonies at federal, state, or local courts. Judicial ceremonies are more common for large group ceremonies and sometimes include special events on Independence Day or Constitution Day. Many applicants prefer judicial ceremonies for their symbolic significance. After receiving the Certificate of Naturalization, new citizens should immediately apply for a U.S. passport to establish proof of citizenship for travel and other identification purposes. The Certificate of Naturalization should be safeguarded; a replacement requires filing Form N 565 with a $555 fee (as of the April 2024 USCIS fee schedule). Certified copies of the certificate are not issued; the certificate itself must be presented as proof of citizenship. Any children who were lawful permanent residents and under 18 years old when the parent naturalizes automatically acquire U.S. citizenship under INA 320 if the child was residing in the United States in the legal and physical custody of the naturalizing parent. No separate application is required; an expedited U.S. passport or a Certificate of Citizenship (Form N 600) can confirm the citizenship.

N 400 applications are denied on several common grounds. The most frequent include: failure to meet the continuous residence requirement due to long absences; failure to meet the physical presence requirement; criminal history that affects good moral character; failure to disclose arrests or convictions on the application; failure to register for Selective Service (applicable to males); outstanding federal or state tax obligations; and failure to pass the English or civics test on two attempts. When USCIS denies an N 400, the applicant receives a written denial notice. Within 30 days, the applicant may request a hearing before a USCIS officer to review the denial under INA 336(a) and 8 CFR 336.2. This administrative appeal is separate from any judicial review. If the hearing officer also denies the application, the applicant may seek review in the U.S. district court with jurisdiction under INA 310(c), where a federal judge conducts a de novo review of the naturalization application. Fee waivers for the N 400 filing fee are available for applicants who receive means tested public benefits or whose household income is at or below 150 percent of the federal poverty guidelines. The N 400 filing fee is currently $760 ($710 for online filers), plus a separate biometrics fee of $85, for a total of $845 (or $795 online). Applicants aged 75 or older pay only $760 with no biometrics fee. Fee waivers are submitted using Form I 912 (Request for Fee Waiver) with supporting documentation of income and benefit receipt. Military naturalization under INA 329 provides an expedited pathway for members of the U.S. armed forces who serve honorably during a period of designated hostilities. Current and former service members serving honorably during a designated period may apply with no LPR requirement, no minimum period of residence, and no physical presence requirement. One year of honorable service during non hostility periods also allows naturalization with reduced requirements under INA 328. Applications from service members are processed by USCIS field offices or Military Immigration Support offices embedded with military units, and filing fees are waived under the National Defense Authorization Act.