Green Card to U.S. Citizenship
U.S. Citizenship Through Naturalization
Naturalization is the process that allows an eligible lawful permanent resident to become a United States citizen. Learn when you may qualify, how Form N-400 works, what happens at the interview, and why the Oath of Allegiance is the final step.
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Interview preparation overview
The Basics
What Is Naturalization?
A Green Card allows you to live permanently in the United States, but permanent residence does not automatically make you a U.S. citizen. Naturalization requires an application, proof that you qualify, a USCIS interview, the required English and civics testing unless an exception applies, and the Oath of Allegiance.
After you take the oath, you receive a Certificate of Naturalization and officially become a United States citizen. Citizenship can provide important benefits, including the ability to apply for a U.S. passport, vote in federal elections, and petition for certain qualifying relatives under citizenship-based immigration categories.
Before filing, review the detailed U.S. citizenship eligibility requirements and make sure your residence, travel, tax, marital, and immigration history are accurately documented.
Watch the Video
How Does a Green Card Holder Become a U.S. Citizen?
Fred Wahl, the VisaCoach, explains the basic naturalization requirements, Form N-400, filing fees, biometrics, the interview, the citizenship tests, and the oath ceremony.
View Full Video Transcript
Hello, I’m Fred Wahl, the VisaCoach.
Today’s topic is: How does a Green Card holder become a U.S. citizen?
This process is called naturalization.
If you are already a lawful permanent resident, also known as a Green Card holder, you may be wondering:
When can I apply for U.S. citizenship?
What are the requirements?
What does the process involve?
And how much does it cost?
Let’s go through the basics.
First, naturalization is not automatic.
A Green Card allows you to live permanently in the United States, but it does not automatically make you a U.S. citizen.
To become a citizen, you must apply, qualify, attend an interview, pass the required tests unless you qualify for an exception, and take the Oath of Allegiance.
Once approved, you receive a Certificate of Naturalization and become a United States citizen.
So who is eligible?
For many Green Card holders, the basic rule is that you may apply after 5 years as a lawful permanent resident.
However, if you are married to and living with a U.S. citizen, you may qualify after 3 years as a lawful permanent resident.
You must generally be at least 18 years old.
You must show good moral character.
You must meet the residence and physical presence requirements.
And in most cases, you must be able to read, write, and speak basic English, and pass a civics test about U.S. history and government.
There are some exceptions, especially based on age, disability, or certain other circumstances.
That is why it is important to review your situation carefully before applying.
Now let’s talk about the process.
The first step is determining whether you are eligible.
This means reviewing when you received your Green Card, how much time you have spent inside and outside the United States, whether you are applying under the 5-year rule or the 3-year marriage rule, and whether there are any issues that could affect your eligibility.
The second step is preparing the application.
The naturalization application is Form N-400.
This application asks about your immigration history, addresses, employment, travel outside the United States, marriage history, children, background, and eligibility for citizenship.
It is important that the information is complete, accurate, and consistent with your immigration history.
Mistakes can lead to delays, requests for more information, or problems at the interview.
The third step is gathering supporting documents.
Common documents may include your Green Card, identification, marriage records if applying based on marriage to a U.S. citizen, divorce records if applicable, tax records, travel history, and other documents depending on your case.
The fourth step is submitting the application to USCIS with the proper filing fee.
The current USCIS government filing fee for a paper Form N-400 is $760.
Some applicants may qualify for a reduced fee of $380, and some may qualify for a fee waiver, depending on their financial situation and USCIS requirements.
After USCIS receives the application, they send a receipt notice.
Then, in many cases, USCIS schedules a biometrics appointment.
At biometrics, USCIS takes fingerprints, a photo, and a signature for background checks.
After that, USCIS schedules the naturalization interview.
At the interview, an officer reviews your N-400 application, asks questions about your background, and checks your eligibility.
In most cases, you will also take the English and civics tests.
The English test usually includes reading, writing, and speaking.
The civics test covers U.S. history and government.
If everything goes well and USCIS approves your application, the final step is the Oath Ceremony.
This is the moment you officially become a U.S. citizen.
You are not a U.S. citizen until you take the Oath of Allegiance.
At the ceremony, you receive your Certificate of Naturalization.
After becoming a citizen, you can apply for a U.S. passport, vote in federal elections, and enjoy the full rights and responsibilities of U.S. citizenship.
Now, here is where VisaCoach can help.
The naturalization application may look simple at first, but it is very important to prepare it carefully.
VisaCoach helps prepare your naturalization application so it is organized, complete, and ready for submission.
Our charge to prepare the naturalization application is $730.
We help you understand the requirements, organize the information, prepare the forms, and guide you on the supporting documents.
If you are ready to apply for U.S. citizenship, or if you are not sure whether you qualify yet, VisaCoach can help you review the process and prepare the application.
This was Fred Wahl, the VisaCoach.
We help make the immigration process faster, easier, and less confusing.
Prefer to watch on a dedicated video page? Watch the U.S. citizenship naturalization process explained.
Eligibility
When Can a Green Card Holder Apply?
The correct filing date depends on the naturalization category and the applicant’s complete history.
The General 5-Year Rule
Many lawful permanent residents may qualify after holding permanent resident status for 5 years and meeting the other naturalization requirements.
- Be at least 18 years old when filing.
- Meet continuous residence and physical presence requirements.
- Show good moral character.
- Meet the English and civics requirements unless an exception applies.
- Be willing to support the Constitution and take the Oath of Allegiance.
The 3-Year Marriage Rule
Some permanent residents may qualify after 3 years if they have been married to and living in marital union with the same U.S. citizen spouse for the required period and meet the other requirements.
- Hold lawful permanent resident status for the required period.
- Document the qualifying marriage and the spouse’s U.S. citizenship.
- Meet continuous residence and physical presence requirements.
- Continue meeting the marriage-based requirements through the relevant part of the process.
Early Filing May Be Available
Many applicants using the 3-year or 5-year continuous-residence path may submit Form N-400 up to 90 calendar days before completing that residence period. Early filing does not shorten the other eligibility requirements, and filing too early can create problems.
Step by Step
The U.S. Naturalization Process
Although every case is different, most applicants move through the following stages.
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Confirm Your Eligibility
Review your Green Card date, travel outside the United States, residence and physical presence, marriage history, taxes, background, and any issue that could affect eligibility.
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Prepare Form N-400
Complete the Application for Naturalization accurately and consistently with your prior immigration records.
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Gather Supporting Documents
Collect your Green Card, identification, travel history, tax information, marriage records when relevant, and any additional records required for your circumstances.
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Submit the Application and Fee
File Form N-400 with the correct USCIS fee or an eligible reduced-fee or fee-waiver request. Review the naturalization cost guide before filing.
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Complete Biometrics if Required
USCIS may schedule an appointment to collect fingerprints, a photograph, and a signature for identity and background checks.
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Attend the Naturalization Interview
A USCIS officer reviews your application, asks questions about your background and eligibility, and administers the English and civics tests unless an exception or accommodation applies.
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Receive the USCIS Decision
USCIS may approve the application, continue the case for more evidence or testing, or deny the application.
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Take the Oath of Allegiance
You become a U.S. citizen only after taking the Oath of Allegiance at a naturalization ceremony and receiving your Certificate of Naturalization.
For a practical preparation guide, see how to apply for U.S. citizenship.
Costs
Naturalization Filing Fees and VisaCoach Preparation
The government filing fee and VisaCoach preparation fee are separate charges.
USCIS Form N-400 Fee
Standard paper filing fee: $760
Some applicants may qualify for a reduced fee of $380 or a fee waiver under current USCIS rules. Government fees and requirements can change, so verify the current Form N-400 fee immediately before filing.
VisaCoach Preparation Fee
Naturalization application preparation: $730
VisaCoach helps organize your information, prepare Form N-400, identify supporting-document needs, and guide you through the expected next steps.
Interview and Testing
What Happens at the Naturalization Interview?
The interview is both a review of the application and, for most applicants, the time when USCIS administers the English and civics tests.
N-400 Application Review
The officer may ask about your name, addresses, employment, travel, marriages, children, immigration history, taxes, background, and the answers on Form N-400. Your English speaking ability is generally evaluated during this conversation.
English Test
Unless an exception applies, the English portion evaluates speaking, reading, and writing. Applicants are generally asked to read one of three sentences correctly and write one of three sentences correctly.
The Current 2025 Civics Test Format
Applicants who filed Form N-400 on or after October 20, 2025 generally study 128 official civics questions. At the interview, the officer may ask up to 20 questions, and the applicant must answer 12 correctly to pass. Different rules can apply to certain applicants, including the 65/20 special consideration.
Final Step
The Oath Ceremony Makes Citizenship Official
Approval of Form N-400 does not by itself make you a U.S. citizen. After approval, USCIS schedules the naturalization ceremony. You become a citizen when you take the Oath of Allegiance and receive your Certificate of Naturalization.
After naturalization, common next steps include applying for a U.S. passport, updating your citizenship status with the Social Security Administration, registering to vote, and considering whether you want to petition for qualifying relatives.
Related Guides
More Help With U.S. Citizenship
Continue with the VisaCoach citizenship guides most closely related to eligibility, costs, application preparation, and the civics test.
U.S. Citizenship Resource Center
Start with the main citizenship subhub and browse the complete VisaCoach naturalization topic cluster.
Citizenship Eligibility Requirements
Review residence, physical presence, good moral character, English, civics, and oath requirements.
Naturalization Costs
Understand the government filing fee, reduced-fee possibilities, and VisaCoach preparation charge.
Applying for U.S. Citizenship
Learn what to prepare before filing Form N-400 and attending the naturalization interview.
From a K-1 Fiancé Visa to Citizenship
Follow the longer immigration journey from a K-1 fiancé visa through permanent residence and possible naturalization.
VisaCoach Immigration Videos
Browse video explanations about U.S. citizenship, fiancé visas, spouse visas, Green Cards, and related topics.
Common Questions
U.S. Citizenship Naturalization Questions
When can a Green Card holder apply for U.S. citizenship?
Many lawful permanent residents may qualify under the general 5-year rule. Some applicants married to and living in marital union with a U.S. citizen may qualify under a 3-year rule. The residence, physical presence, good moral character, English, civics, and other requirements must also be met.
Can Form N-400 be filed before the 3-year or 5-year anniversary?
Many applicants may file Form N-400 up to 90 calendar days before completing the required continuous-residence period. Early filing does not shorten the other naturalization requirements.
What is the USCIS paper filing fee for Form N-400?
As of July 2026, the standard USCIS paper filing fee is $760. Some applicants may qualify for a $380 reduced fee or a fee waiver under current USCIS rules. Always verify the fee immediately before filing.
When do I officially become a U.S. citizen?
You officially become a U.S. citizen after taking the Oath of Allegiance at a naturalization ceremony and receiving your Certificate of Naturalization.
VisaCoach Guidance
Ready to Prepare Your Naturalization Application?
VisaCoach can help organize your information, prepare Form N-400, and guide you on the supporting documents needed for your citizenship application.
Page reviewed July 25, 2026. USCIS fees, forms, and procedures can change.

