The Complete Guide to U.S. Naturalization in 2026: When Can Green Card Holders Apply for Citizenship? The New Civics Test and Common Risks
For many green card holders, becoming a permanent resident is only one stage of the immigration process. Becoming a U.S. citizen brings additional legal protections and the right to vote. It can also provide certain family members, including parents, spouses, and children, with an immigration path that has no visa backlog or a shorter wait.
Filing Form N-400, Application for Naturalization, involves more than completing a form and paying taxes. When reviewing a naturalization application, U.S. Citizenship and Immigration Services (USCIS) may revisit the applicant’s immigration history. What are the requirements for naturalization in 2026? How long must you hold a green card before applying? What has changed about the civics test? Can you still apply if you have spent significant time abroad or have a criminal record, unpaid taxes, or issues in your immigration history?
This guide explains the main requirements, application process, fees, and potential risks to consider before applying for U.S. citizenship in 2026.
What Are the Requirements for U.S. Citizenship in 2026?
In general, an applicant must be at least 18 years old and a lawful permanent resident when filing Form N-400. The applicant must also meet the following requirements.
1. Time as a Green Card Holder: The Five Year and Three Year Rules
Five year rule: Most applicants must have been lawful permanent residents for at least five years.
Three year rule for spouses of U.S. citizens: An applicant who is married to a U.S. citizen may generally apply after three years as a permanent resident if they meet the marriage requirements and their spouse has been a U.S. citizen throughout those three years.
Early filing: Eligible applicants may file Form N-400 up to 90 days before completing the required three or five year period.
2. Continuous Residence and Physical Presence
Applicants must meet both the continuous residence and physical presence requirements:
Five year rule: Applicants must have been physically present in the United States for at least 30 months, or approximately 913 days, during the five years before filing.
Three year rule: Applicants must have been physically present in the United States for at least 18 months, or approximately 548 days, during the three years before filing.
Continuous residence: A single absence of more than six months may affect continuous residence. An absence of one year or longer generally breaks continuous residence unless a specific exception applies, such as an approved Form N-470 for an eligible applicant.
Residence in the filing area: Applicants generally must have lived in the state or USCIS district where they file for at least three months before submitting Form N-400.
3. Good Moral Character
Applicants must demonstrate good moral character during the applicable statutory period, usually three or five years. Criminal history, unpaid taxes, failure to meet child support obligations, and false statements may affect eligibility. Some applicants must also address issues involving Selective Service registration.
4. English and Civics Requirements
Unless an exemption or exception applies, applicants must pass the naturalization tests, which assess:
Basic English speaking, reading, and writing skills; and
Knowledge of U.S. history and government, known as the civics test.
5. Selective Service Registration
Male applicants who were required to register with the Selective Service System between ages 18 and 26 may need to show that they complied with that requirement.
The Naturalization Process and Filing Fees in 2026
Step 1: Assess eligibility and review immigration records. If your immigration history is complex, an attorney may recommend requesting records through the Freedom of Information Act (FOIA).
Step 2: Prepare supporting materials and file Form N-400.
Step 3: Attend a biometrics appointment if required. USCIS may reuse previously collected biometrics.
Step 4: Attend the naturalization interview and take the English and civics tests, unless an exception applies.
Step 5: Receive a decision on the application.
Step 6: Attend the Oath of Allegiance ceremony and receive a Certificate of Naturalization. You become a U.S. citizen after taking the oath.
Current filing fees: The Form N-400 fee is $710 when filed online or $760 when filed on paper. A separate $85 biometrics fee is not required. Fees may change, so confirm the current amount before filing.
What Has Changed About the U.S. Civics Test?
1. The 2025 Civics Test
Applicants who file Form N-400 on or after October 20, 2025, take the 2025 version of the civics test:
Question bank: The test draws from USCIS’s official list of 128 civics questions and answers.
Interview: The USCIS officer asks up to 20 questions.
Passing score: The applicant must answer at least 12 questions correctly.
2. English Test Exceptions for Older Applicants: The 50/20 and 55/15 Rules
Applicants who meet either of the following conditions are exempt from the English language requirement and may take the civics test in a language of their choice with an interpreter:
50/20 rule: The applicant is at least 50 years old when filing and has been a lawful permanent resident for at least 20 years.
55/15 rule: The applicant is at least 55 years old when filing and has been a lawful permanent resident for at least 15 years.
65/20 special consideration: An applicant who is at least 65 years old and has been a lawful permanent resident for at least 20 years also receives special consideration for the civics test. Under the 2025 test, the applicant studies 20 designated questions, is asked 10 of them, and must answer at least six correctly.
3. Medical Exception: Form N-648
An applicant whose physical or developmental disability or mental impairment prevents them from meeting the English or civics requirements may request a full or partial testing exception using Form N-648, Medical Certification for Disability Exceptions. A qualified medical professional must complete the form.
Can You Apply for Citizenship If You Have Past Immigration or Legal Issues?
Some applicants assume that receiving a green card resolved every issue in their immigration history. That assumption can create risks when applying for naturalization.
When reviewing Form N-400, USCIS officers may examine earlier immigration filings and records. The following issues warrant careful review before filing:
False statements, errors, or inconsistencies in a previous green card application, including issues involving a prior marriage;
Criminal history, including DUI cases, arrests that did not lead to charges, closed cases, and expunged records;
Unpaid taxes, tax evasion, or failure to file required tax returns; and
Extended absences that raise questions about whether the applicant intended to abandon permanent residence.
Pre-Filing N-400 Checklist
Before filing, consider the following questions:
Have I been a lawful permanent resident for at least five years, or do I qualify under the three year rule?
Do my travel records show that I meet the physical presence requirement, and have I reviewed any absence lasting more than six months?
Do I have any violations, arrests, citations over $500, or criminal matters from the past five years that need review?
Have I filed all required tax returns, and have I addressed any unpaid taxes?
Are the details in my earlier immigration applications consistent with the information I plan to provide now?
Prepare for Your Naturalization Application
Applying for citizenship involves more than completing Form N-400. Eligibility depends on your residence, travel, tax, criminal, and immigration history. Even a small oversight may delay an application or create unexpected legal consequences.
If you have concerns about your travel history, previous immigration filings, or criminal or tax matters, or if you want help preparing your N-400 application, Ding Babb Law Group has experience with U.S. immigration and naturalization cases. We provide naturalization eligibility assessments, FOIA record reviews, complex case analysis, and representation throughout the N-400 process.
📞 Contact us: Schedule an individual assessment with an immigration attorney.
✉️ Email and WeChat: DB-Law
Identifying potential issues before filing is often easier than addressing them after a denial. Contact us to discuss your path to U.S. citizenship.
Frequently Asked Questions About U.S. Naturalization
Q1: Can I apply for citizenship if I was arrested or have a criminal record after receiving my green card?
Answer: Have the record reviewed before applying. Whether a criminal case affects naturalization depends on the offense, the outcome, the sentence, and other circumstances, including whether you are on probation. USCIS may examine the underlying conduct even if the case was closed or the record was expunged. Certain crimes involving moral turpitude or aggravated felonies may also put permanent resident status at risk.
Q2: Will USCIS discover errors or violations in my earlier immigration applications?
Answer: It may. An officer may compare Form N-400 with earlier filings, such as Forms DS-160, I-485, and I-751. A material misrepresentation or serious inconsistency could lead to a naturalization denial and further review of how you obtained permanent residence.
Q3: Can I apply for citizenship if I owe taxes or failed to file tax returns?
Answer: It may still be possible, but you should address the issue before filing. Unpaid taxes do not automatically result in a denial. USCIS may ask for evidence that you filed required returns and arranged to pay what you owe, such as an agreement with the IRS or a state tax agency and records showing payments under that agreement.
Q4: Can I travel abroad after filing Form N-400?
Answer: Yes, but travel during the application process still matters when USCIS assesses continuous residence and physical presence. You must also return for any required biometrics appointment, interview, and oath ceremony. If you plan an extended stay abroad, assess the potential consequences before traveling.
Q5: Can I still apply under the three year marriage rule if I am separated or getting divorced?
Answer: Separation or divorce may affect eligibility under the three year rule. This route has specific requirements concerning the marriage and marital union with the U.S. citizen spouse. Have your circumstances reviewed before filing or continuing an application. If you do not qualify under the three year rule, you may need to wait until you meet the general five year requirements.
Q6: Will a naturalization denial affect my green card?
Answer: It depends on the reason for the denial. Failing the English or civics test, or falling short of the physical presence requirement, does not by itself mean you lose permanent resident status. If USCIS identifies fraud in the original green card process, a serious criminal issue, or possible abandonment of permanent residence, there may be consequences beyond the N-400 denial.
Q7: Could frequent international travel or living abroad for an extended period affect my application?
Answer: Yes. An absence of more than six months may affect continuous residence, and an absence of one year or longer generally creates a more serious continuous residence issue. Frequent shorter trips can also leave you short of the required physical presence. If you have traveled regularly between the United States and other countries, review your complete travel history before applying.
