Steps to Become a U.S. Citizen
Becoming a U.S. citizen usually happens through a process called naturalization, which means asking the government to give you citizenship after you meet certain rules. This guide explains the usual steps in plain language, and where a licensed immigration lawyer may be able to help.

What naturalization means
Naturalization is the legal process of becoming a U.S. citizen if you were not born a citizen. Many people apply after they have been a lawful permanent resident, also called a green card holder, for a certain number of years.
For many adults, the process includes checking if you qualify, filing a form, going to a biometrics appointment, taking an interview, and passing tests on English and civics. Civics means basic U.S. history and government. Then, if approved, you take the Oath of Allegiance, which is a formal promise to support the United States.
The rules can be different if you are married to a U.S. citizen, served in the U.S. military, have a disability, or qualify through your parents. If you want help understanding your options, you can learn more about immigration services or use the free get matched page to connect with a licensed attorney.
Basic requirements many applicants need to meet
- Be at least 18 years old when you file, in most cases.
- Be a lawful permanent resident, which usually means you have a green card.
- Have had your green card for 5 years, or 3 years if you qualify through marriage to a U.S. citizen. Some exceptions may apply.
- Show continuous residence, which means you lived in the United States for the required time without certain long trips breaking that history.
- Show physical presence, which means you were actually inside the United States for enough days during the required period.
- Live for enough time in the state or USCIS district where you file. USCIS is U.S. Citizenship and Immigration Services, the government agency that handles many immigration applications.
- Show good moral character, which generally means avoiding certain crimes, false statements, and other conduct the law treats as serious problems.
- Be willing to support the U.S. Constitution and take the Oath of Allegiance, unless an exception applies.
- Pass an English test and a civics test, unless you qualify for an age, time, or disability exception.
Usual steps to become a U.S. citizen
- Check whether you qualify. Review your green card history, travel outside the United States, tax filing, child support, criminal record, and any past immigration problems. Even old issues can matter.
- Get your records together. Many people collect their green card, passport, travel dates, address history, marriage and divorce records if relevant, Selective Service proof if required, and papers about any arrests or court cases.
- Complete Form N-400. This is the main application for naturalization. Answer every question carefully. A mistake or missing detail can cause delay or create bigger problems.
- Pay the filing fee or ask for a fee waiver if you qualify. A fee waiver means asking the government to let you file without paying because of low income or certain public benefits. Fee rules can change.
- File the application with USCIS. You may be able to file online or by mail, depending on your case.
- Go to biometrics. Biometrics means fingerprints, a photo, and a signature so the government can check your background.
- Prepare for the interview and tests. A USCIS officer will review your application, ask questions, and usually give the English and civics tests unless you qualify for an exception.
- Respond to any requests for evidence. This means USCIS may ask for more documents if something is missing or unclear.
- Wait for the decision. USCIS may approve your case, continue it for more review, or deny it.
- Take the Oath of Allegiance at a ceremony if your case is approved. After that step, you usually become a U.S. citizen and receive a naturalization certificate.
What happens at the interview
At the naturalization interview, a USCIS officer will place you under oath. Under oath means you promise to tell the truth. The officer often reviews the answers in your N-400 form and asks whether anything has changed since you filed.
You may be asked about your trips outside the United States, your family, your work, your taxes, and any contact with police or courts. If you do not understand a question, it is okay to ask the officer to repeat it or say it in a simpler way.
Most applicants also take an English test and a civics test. The English part may include reading, writing, and speaking. The civics part covers basic facts about U.S. history and government. Some people can take a different version of the test or may be excused from parts of it because of age, years as a permanent resident, or a medical disability. A licensed immigration attorney can help you understand whether an exception may fit your situation.
Small mistakes can become big delays
Problems that can affect eligibility
Some people think citizenship is only about filling out a form. In reality, USCIS may look at your full immigration and personal history. That includes long trips abroad, taxes, selective service registration for some men, arrests, convictions, probation, and whether you ever claimed to be a U.S. citizen when you were not.
A conviction means a court found you guilty or you entered a plea that counts as guilt. Even if a case was old, reduced, or dismissed later, it may still matter in immigration law. Immigration law uses its own rules, and they can be very different from criminal court rules.
You should also be careful if you have ever used a different name, given wrong information to the government, voted in a U.S. election without being allowed to, or left the United States for six months or more at a time. These facts do not always mean you cannot apply, but they are warning signs that deserve legal review.
Because every case is different, this page is general education, not legal advice. For advice about your own record and timing, talk to a licensed attorney.
How long it takes and what it may cost
Processing time varies a lot by state, local USCIS office, and your situation. Some cases move in months, while others take much longer if there are background check issues, interview rescheduling, missing documents, or legal questions.
Government filing fees also change over time. If you hire a lawyer, attorney fees often depend on whether your case is straightforward or needs extra work, such as reviewing criminal records, fixing old filings, or preparing waivers. Costs vary by state and your situation.
If cost is a worry, ask early about payment options, flat fees, and whether you may qualify for a fee waiver from USCIS. If language is a barrier, ask whether the lawyer's office offers help in your language. Legal Bearings is not a law firm and does not give legal advice. It offers a free way to get matched with a participating licensed attorney, and the service is paid a flat fee by attorneys, not by you.
Ways to protect yourself from bad help
- Be careful with anyone who promises a guaranteed approval or says they have a special connection with immigration officials.
- Ask whether the person is a licensed attorney in a U.S. state. A notary in many countries is not the same as a lawyer in the United States.
- Get a written agreement that explains the services and the fee. Keep copies of everything filed for you.
- Never sign blank forms or forms you cannot read. Ask for a translation if needed.
- Review every answer before anything is filed. You are responsible for what is sent in your name.
- If something in your history feels complicated, ask for legal advice from a licensed immigration attorney before you file.
Common questions
Can I apply for citizenship after 3 years instead of 5?
Maybe. Some green card holders may apply after 3 years if they have been living in marital union with a U.S. citizen spouse and meet other rules. There are also special paths for some military members and a few other groups. A licensed attorney can help you check which timeline fits your case.
What if I took a long trip outside the United States?
A long trip can affect continuous residence and physical presence. Trips of six months or more can raise questions, and very long trips can create bigger problems. It does not always mean you cannot apply, but it is smart to get legal advice before filing.
Do I have to speak English to become a U.S. citizen?
Many applicants do need to pass an English test. But some people may qualify for an exception based on age, years as a permanent resident, or a medical disability. The civics test rules may also change for some applicants.
Will a criminal record stop me from becoming a citizen?
It could. USCIS looks at good moral character and certain crimes can cause denial or even create removal risks in some situations. Removal means the government tries to deport a person from the United States. Because the risk can be serious, talk to a licensed immigration attorney before filing if you have any arrest, charge, plea, or conviction.
Can Legal Bearings tell me if I qualify?
Legal Bearings is not a law firm and does not give legal advice. It provides general education and a free way to get matched with a participating licensed attorney who can review your specific facts and advise you.
In plain English: If you want to become a U.S. citizen, check your eligibility carefully, be honest on every form, and get help from a licensed attorney if your history includes travel, arrests, taxes, or other complications.