Can You Change Your Name at 18

Everyone · Explainer · Updated October 1, 2026 · LearnLife Editorial

What Does Changing Your Name at 18 Mean?

Changing your name at 18 means legally altering your official first name, last name, or both after you reach adulthood. At 18, you are recognized as a legal adult and can make decisions regarding your identity without parental approval. This change is more than just a nickname or casual preference—it is a formal, legal process that results in your new name being recognized by government agencies and businesses.

When your name is legally changed, you can update important documents like your Social Security card, driver’s license or state ID, passport, bank accounts, and school or employment records. This process allows you to fully assume your chosen identity in official and social contexts.

For example, if you want to change your first name from “Michael” to “Alex” and your last name from “Brown” to “Taylor,” once the court approves your petition, you will legally be “Alex Taylor” and can update all your records accordingly.

Understanding the importance of this process can help you take control over your identity as you enter adulthood, aligning your name with your personal or cultural preferences, gender identity, or family situation.

How Does the Name Change Process Work After You Turn 18?

The name change process is a formal legal procedure that varies slightly by state, but generally follows these steps:

1. Fill Out a Petition: Obtain and complete a “Petition for Name Change” form from your local county or district court. This typically asks for your current name, the name you want, your date of birth, reasons for the change, and your contact information.

1. File Your Petition: Submit the form to the court clerk’s office and pay a filing fee, which can range from around $100 to $400 depending on your location. Some states offer fee waivers if you cannot afford the cost.

1. Background Check or Fingerprinting: Some states require you to submit to a criminal background check or fingerprinting to ensure you are not changing your name to avoid debts or legal issues.

1. Publication of Notice: Many states require you to publish a notice of your name change petition in a local newspaper for a period (often once a week for 3-4 weeks). This is to notify the public and allow objections from anyone who might be affected. If you fear harm or have privacy concerns, you can ask the court to waive this publication requirement.

1. Court Hearing: After the publication period, the court schedules a hearing. You will appear before a judge and explain your reasons for the name change. If the judge finds no legal issues, they issue a court order granting your name change.

1. Update Your Records: Take the court order to update your name with the Social Security Administration first, then the Department of Motor Vehicles, passport office, banks, employer, and other institutions.

For example, if you live in California and want to change your last name at 18, you would file a petition at your county court, pay a fee (about $435), publish a notice in a local paper, attend a hearing, then use the court order to update your Social Security card and driver’s license. The entire process may take 2 to 3 months.

Why Does Being 18 Matter for Changing Your Name?

Turning 18 is significant because it marks the age of majority—the legal point at which you are considered an adult with the full capacity to make decisions about your life and identity. Before 18, minors typically need a parent or guardian to petition the court on their behalf for a name change. The court also considers the minor's best interests.

At 18, you can make this decision without parental approval, reflecting your autonomy. This is particularly important if you want to change your name for personal reasons such as:

• Aligning your name with your gender identity.
• Adopting a new surname after estrangement or family changes.
• Choosing a name that better reflects your cultural background.
• Starting fresh for personal or professional reasons.

Because you are legally an adult, your name change is treated as your own decision in the eyes of the law. This independence parallels other rights gained at 18, such as voting, signing contracts, joining the military, and consenting to medical treatment (What Changes at 18 Years Old, Turning 18 Age Limit: Understanding Legal Boundaries).

Can You Change Your Surname or Last Name at 18?

Yes, changing your surname or last name at 18 is part of the same legal process as changing your first name. Whether you want to:

• Take your mother’s maiden name.
• Adopt a step-parent’s last name.
• Revert to a birth name after adoption.
• Choose a completely new last name.

The process is similar. The court will want to ensure that your name change is not intended to commit fraud, evade debts, or cause harm.

In some cases, changing a last name may be related to marriage or divorce. Marriage usually allows a simplified procedure for changing your surname, but if you want to change your last name outside of marriage or divorce, the full legal petition process is required.

For example, if your current last name is “Johnson” and you want to change it to “Lee,” after filing your petition and receiving court approval, you can use the court order to update your Social Security, driver’s license, and other documents to reflect “Lee” as your new surname.

What Are Common Confusions About Name Change?

People often confuse legal name changes with informal or limited-name changes. Here are some clarifications:

• Using a Nickname or Alias: You can use a nickname socially or at work without legal permission, but it does not change your official documents or legal identity.

• Marriage or Divorce Name Changes: These often have streamlined legal procedures that differ from the general name change process.

• Changing Your Name on Social Media or Accounts: Changing your display name online does not affect your legal name.

• Changing a Child’s Name Before 18: Minors cannot legally change their names on their own; a parent or guardian must petition on their behalf.

Understanding these differences helps avoid frustration when trying to update official documents or prove your identity.

What Should You Do Next If You Want to Change Your Name at 18?

If you have decided to change your name, here is a clear action plan:

1. Research Your State's Laws: Visit your local court's website or government site to find specific forms, fees, and instructions. Each state and sometimes each county has different rules.

1. Obtain and Complete the Petition Form: Fill it out carefully, providing your current name, desired name, reason for the change, and other required details.

1. Prepare for Fees and Publication: Plan for the filing fee and understand if you must publish a notice in the newspaper. Check if you qualify for a fee waiver or publication exemption.

1. File Your Petition: Submit your paperwork to the court clerk and pay the fee. Keep copies for your records.

1. Attend the Hearing: Be prepared to explain your reasons to the judge clearly and honestly. Bring all necessary documents, such as identification and any supporting evidence.

1. Receive Your Court Order: After approval, get certified copies of the court order for updating your records.

1. Update Your Records: Start with the Social Security Administration, then the DMV, passport office, banks, schools, and employers.

This process can take anywhere from a few weeks to several months depending on your location and court schedule. You can get help from self-help centers at courts or organizations offering legal aid if you have questions (Legal Services Corporation).

How Does Changing Your Name Affect Your Records and Identity?

After the court approves your name change, it’s critical to update your identification and records to avoid confusion. This includes:

• Social Security Card: Visit your local Social Security office or apply online to update your name using the court order. This is important because many agencies use your Social Security record to verify identity.

• Driver’s License or State ID: Go to your state DMV with your court order and updated Social Security card to get a new license or ID card.

• Passport: Submit your court order with your passport application or renewal to update your passport.

• Financial Institutions: Notify banks, credit card companies, and loan providers to update your accounts.

• Employer and School: Provide your employer and any schools or universities you attend with the court order to update their records.

• Other Accounts and Documents: Don’t forget insurance policies, utility companies, medical providers, and voter registration.

Keeping your documents consistent protects you from identity confusion, helps with employment verification, travel, and legal matters.

Frequently asked questions

Can I change my name immediately upon turning 18, or do I have to wait?

You can petition to change your name as soon as you turn 18, the legal age of majority, without waiting. You must follow your state’s legal process regardless of timing.

Will changing my last name at 18 affect my family relationships legally?

Changing your last name does not legally affect your familial relationships like inheritance or parental rights, but it may affect how others identify you socially or on legal documents.

What if someone objects to my name change during the publication period?

If an objection is filed, the court may schedule a hearing to review the reasons. You will have a chance to present your case. Objections must be based on legal grounds, such as fraud concerns.

Can I change my name if I have a criminal record?

Having a criminal record does not automatically prevent a name change, but the court will consider your background during the process. The court may deny your petition if the change is intended to avoid legal consequences.

Do I have to update my name on all documents at once?

No, but it’s best to start with your Social Security card and driver’s license, then update other documents as soon as possible to avoid confusion.

Are there limits on what names I can choose?

Yes. You cannot select names with numbers, symbols, offensive words, or names intended to commit fraud. Check your state’s specific naming rules.