US Citizenship Requirements 2026: Can You Apply for Naturalization?
In this guide
Becoming a US citizen through naturalization is the final step in a long immigration journey. Once you meet the requirements, citizenship grants the right to vote, the ability to sponsor more family members, a US passport, and protection from deportation. This guide walks through every requirement and helps you determine if you're ready to apply.
The Requirements at a Glance
To naturalize as a US citizen, you must meet all of the following requirements:
- Be at least 18 years old when filing Form N-400
- Be a lawful permanent resident (green card holder) for the required period
- Have maintained continuous residence in the US during that period
- Have been physically present in the US for at least half the required period
- Demonstrate good moral character
- Pass an English language test (reading, writing, and speaking)
- Pass a US civics test on history and government
- Take the Oath of Allegiance
USCIS allows you to file Form N-400 up to 90 days before meeting your residency requirement. This early filing window is easy to miss — and missing it costs months of unnecessary delay.
Residency Requirement: 5 Years vs. 3 Years
The standard residency requirement is 5 years from the date you received your green card. However, spouses of US citizens may apply after just 3 years if certain conditions are met.
Standard 5-Year Path
If you are not married to a US citizen, you must have been a lawful permanent resident for at least 5 years before filing. You can begin counting from the date listed on your green card as your "Resident Since" date.
3-Year Path for Spouses of US Citizens
To qualify for the 3-year path, all of the following must be true:
- You must have been a green card holder for at least 3 years
- Your spouse must have been a US citizen for the entire 3-year period
- You must have been living in marital union with your US citizen spouse for the entire 3-year period
- You must meet all other naturalization requirements
If you got divorced or your spouse died during the 3-year period, you typically lose the 3-year benefit and revert to the 5-year requirement.
Other Special Categories
- Military service: Members of the US Armed Forces may have expedited paths, including some with no residency requirement at all during wartime
- Battered spouses: Special protections allow some battered spouses of US citizens to naturalize even after the marriage ends
Continuous Residence and Physical Presence
These are two separate but related requirements that confuse many applicants.
Continuous Residence
You must have maintained continuous residence in the United States during the entire 5-year (or 3-year) period. This means you cannot have abandoned your US residence by living abroad for extended periods.
Specific rules:
- A trip outside the US lasting 6 months or longer but less than 1 year creates a presumption that you broke continuous residence — you can rebut this with evidence, but it triggers extra scrutiny
- A trip lasting 1 year or longer automatically breaks continuous residence (with limited exceptions for certain government employees and military)
- Multiple short trips that don't individually trigger the 6-month rule are still fine
Physical Presence
You must have been physically present in the US for at least half of the required period:
- 5-year path: at least 30 months of physical presence in the US
- 3-year path: at least 18 months of physical presence in the US
Physical presence is calculated by adding up all days you were inside the United States during the required period. Brief trips abroad count against your physical presence even if they don't break continuous residence.
Good Moral Character
USCIS must determine that you have demonstrated "good moral character" during the required period before filing (and ideally throughout your time as a permanent resident). What constitutes good moral character is not precisely defined, but USCIS considers:
- Criminal history — certain offenses are absolute bars, others require case-by-case evaluation
- Tax compliance — failure to file required tax returns or pay owed taxes is a serious red flag
- Failure to register with Selective Service (for males who were between 18 and 25 while permanent residents)
- Child support obligations — failure to pay court-ordered support
- Drug-related conduct, including arrests that didn't result in conviction
- Lying or fraud on immigration applications
- Multiple drunk driving convictions
Some criminal offenses are permanent bars to naturalization, including murder, aggravated felonies, and certain drug trafficking offenses. Others may delay your eligibility or require waivers. Always disclose your full criminal history to your attorney before applying — USCIS will discover anything you try to hide.
English and Civics Tests
At your naturalization interview, you must demonstrate basic English skills and pass a civics test.
English Test
The English test has three components:
- Speaking: Your ability to speak English is evaluated by your USCIS officer during the interview
- Reading: You must read one of three sentences correctly in English
- Writing: You must write one of three sentences correctly in English
Civics Test
The civics test covers US history, government, and rights/responsibilities of citizenship. You'll be asked up to 10 questions from a pool of 100 published questions and must answer at least 6 correctly. USCIS publishes the complete question list and study materials at uscis.gov/citizenship.
Exemptions
Certain applicants are exempt from one or both tests:
- 50/20 exemption: Age 50+ with 20 years as a green card holder — exempt from English test (civics test still required, can be taken in native language)
- 55/15 exemption: Age 55+ with 15 years as a green card holder — exempt from English test
- 65/20 exemption: Age 65+ with 20 years as a green card holder — exempt from English test and given a simplified civics test (20 questions instead of 100)
- Disability exemption: Available for applicants with qualifying medical conditions, supported by Form N-648
Common Disqualifiers
Even if you meet the basic time requirement, several issues can disqualify or delay your application:
Unfiled or unpaid taxes. USCIS routinely requests tax transcripts for the past 5 years. Any unfiled returns or unpaid balances must be resolved before applying.
Extended trips abroad. Trips of 6 months or longer create a rebuttable presumption that you broke continuous residence. Trips of 1 year or longer automatically break it.
Criminal history. Even arrests that didn't result in conviction must be disclosed and can complicate your case. Some offenses are permanent bars.
Failure to register with Selective Service. Males who were between 18 and 25 while permanent residents are required to register. Failure can affect good moral character determination.
Owing child support. Outstanding court-ordered child support is a moral character issue that must be resolved.
Fraud or misrepresentation. Any false statement on a prior immigration application — including marriage fraud, employment misrepresentation, or false claims to US citizenship — can result in denial or even loss of permanent resident status.
The Naturalization Process Step by Step
- File Form N-400. Submit your application with required documents and filing fee. You can file 90 days before meeting your residency requirement.
- Biometrics appointment. USCIS typically schedules this 4-8 weeks after receipt. You'll provide fingerprints, photo, and signature.
- Wait for interview scheduling. This is the longest phase. Current wait times for the interview range from 4 to 18 months depending on your field office.
- Attend the interview. A USCIS officer reviews your application, conducts the English and civics tests, and may ask questions about your background.
- Decision. The officer either approves, denies, or continues your case (requesting additional evidence).
- Oath ceremony. If approved, you'll be scheduled for an oath ceremony — sometimes the same day, sometimes weeks later. You become a US citizen upon taking the Oath of Allegiance.
Check Your Citizenship Eligibility
Use our free naturalization eligibility checker to see when you may be eligible to file and identify any potential issues with your application.
Frequently Asked Questions
How long does it take to become a US citizen?
From filing Form N-400 to taking the Oath of Allegiance typically takes 8-18 months depending on your USCIS field office and current processing times. Some offices have backlogs that extend the timeline.
How much does it cost to apply for US citizenship?
As of 2025, the N-400 filing fee is $760 (which includes biometrics). Fee waivers and reduced fees are available for low-income applicants who qualify. Always check current fees on the USCIS website before filing.
Can I keep my original citizenship?
The US generally allows dual citizenship, but your country of origin's laws determine whether you can retain it. Some countries automatically revoke citizenship when you naturalize elsewhere; others allow dual citizenship freely. Check with your home country's consulate before naturalizing.
What if I fail the English or civics test?
If you fail one or both tests, USCIS will schedule a second interview within 60-90 days specifically for retesting. If you fail again, your application is denied — though you can reapply later.
Can my children become citizens when I do?
Under the Child Citizenship Act, children under 18 who are lawful permanent residents typically automatically become US citizens when one parent naturalizes, provided they are living in the US in the parent's legal and physical custody. They do not need to file their own N-400.