Naturalization is the process by which a lawful permanent resident becomes a U.S. citizen. For green card holders in Indiana who have met the residency requirements, naturalization represents both the culmination of their immigration journey and the opening of new rights — including voting, unrestricted travel, and the ability to petition for additional family members.

The basic eligibility requirements for naturalization through marriage to a U.S. citizen are straightforward: you must be at least 18 years old, have been a lawful permanent resident for at least three years, have been living in marital union with your U.S. citizen spouse for those three years, have been physically present in the United States for at least 18 months of those three years, and have lived in the state or USCIS district where you are applying for at least three months.

For green card holders not married to a U.S. citizen, the residency requirement is five years instead of three, with at least 30 months of physical presence. All applicants must demonstrate continuous residence, meaning no single trip outside the U.S. lasted six months or longer. Trips of six months to one year may break continuous residence unless you can prove you maintained strong ties to the U.S.

The N-400 application is submitted to USCIS along with supporting documents, photographs, and the filing fee. Current processing times for N-400 applications at the Indianapolis Field Office range from 8 to 14 months from filing to oath ceremony. Expedited processing is rarely granted for naturalization cases.

Every naturalization applicant must pass the civics test and the English test. The civics test consists of up to 10 questions drawn from a pool of 100, and you must answer 6 correctly to pass. The English test assesses your ability to read, write, and speak basic English. Applicants aged 50 or older who have been permanent residents for 20 years, or aged 55 or older with 15 years of residence, may qualify for exemptions from the English test and may take the civics test in their native language.

The naturalization interview is typically brief — 20 to 30 minutes — and covers your application, background, and commitment to the U.S. Constitution. The officer will also review your travel history, tax compliance, and any criminal history. Full transparency is essential; omitting or misrepresenting information can result in denial and potential revocation of your green card.

Upon approval, you will be scheduled for an oath ceremony where you take the Oath of Allegiance to the United States. After the ceremony, you receive your Certificate of Naturalization. For many of our Fishers and Indianapolis clients, this moment marks the true end of immigration uncertainty and the beginning of full participation in American civic life.