Applying for U.S. citizenship through naturalization in 2026 starts with Form N-400. The filing fee is $710 — $680 for processing and $30 for biometrics. Once USCIS receives your application, the process from filing to oath ceremony currently takes 6 to 14 months depending on the field office handling your case. To be eligible, you generally need to have held a green card for at least five years — or three years if you are married to a U.S. citizen. You also need to show continuous residence, physical presence, good moral character, and pass an English and civics test. For Houston residents, the San Antonio Field Office handles most naturalization interviews. I have helped hundreds of clients through this process — and the most common mistake is waiting longer than necessary to file.

What Is Naturalization?

Naturalization is the legal process of becoming a U.S. citizen if born outside the country. It gives the same rights and responsibilities as those born in the United States. This includes the right to vote and apply for a U.S. passport. It also means protection under the Constitution. The first step is knowing if eligible.

Who Can Apply?

A green card is required first. In most cases, it must be held for at least five years. If married to a U.S. citizen, it can be only three years. The applicant must be 18 or older. Time spent in the U.S. matters. At least 30 months of the past five years must be lived inside the country. For spouses, it’s 18 months out of three years. The person must also have lived in the same state for at least three months before applying. A history of good moral character is required. Crimes, false claims, and unpaid taxes can cause problems. English skills are tested. Basic reading, writing, and speaking are needed. U.S. history and government are part of the test too. There are exceptions for age and time as a permanent resident. Those over 50 with 20 years as a green card holder, or over 55 with 15 years, can take the civics test in their language.

How to Start the Process

Start by filling out Form N-400. This is the Application for Naturalization. It can be filed online or by mail. Attach a copy of the green card. Two passport-style photos are needed for those outside the U.S. A fee must be paid. As of now, it is $640 plus $85 for biometrics. Low-income applicants may request a fee waiver. After filing, a receipt notice arrives. Then comes a biometrics appointment. This is for fingerprints and photos. The next step is the interview. An officer goes over the application and asks questions. The English and civics tests happen during this visit. If all goes well, the officer gives a decision at the end. Sometimes more evidence is requested. If approved, the final step is the oath ceremony. This is a special moment. Swearing the Oath of Allegiance means full citizenship. A naturalization certificate is given right after. This certificate is important. It proves U.S. citizenship. Keep it safe. Use it to apply for a U.S. passport or update Social Security records.

What If the Application Is Denied?

A denial is not the end. An appeal can be filed using Form N-336. It must be done within 30 days. A new officer reviews the case. It is also possible to reapply. Often, fixing the issue first is the better path.

Why This Process Matters

Citizenship through naturalization is more than a legal step. It is the final piece in a journey. People leave behind homes, face hard choices, and build lives in a new land. Like those who came through Ellis Island over a hundred years ago, today’s immigrants seek a place to belong. The process may seem long. But it ends with a new beginning. A new chapter as an American.The process can feel overwhelming. Mistakes can delay approval or cause denials. Legal help can make a difference. Learn more about your options and rights by visiting Zavala Law Firm, PLLC. Take the first step toward U.S. citizenship today.