How Can I Change My Child's Last Name To the Father's Last Name?

A parent might want to change their child’s last name to match that of the child’s father for many reasons, most of them personal. Changing a minor’s surname may seem easy enough, but there are legal processes and potential costs involved.

Every state, county, city, and town will have somewhat varying laws. The documents and procedures required for a name change vary as well. The facts of every person’s situation are all a little bit different. While we overview the name-change process, for advice tailored to your circumstances, contact a local and experienced family law attorney.

How To Change a Child’s Last Name

If you want to change your child’s last name in the United States, you’ll have to apply with your state government. Procedural questions vary from state to state and even from town to town, including:

• Whether to visit the local Department of Health or the clerk’s office
• Whether you need a certified copy of the child’s birth certificate or vital records or whether a photocopy will do
• Whether the document is called a name change petition or a name change request

Many states, including California, have several processes for changing a child’s last name. If you’re changing a minor’s name to be compatible with their gender identity, for example, you have to submit a specific form.

You can change a minor’s name in other ways. In New York, for example, you can change a child’s last name by changing your name as a parent. The other parent must agree in writing, and both parents must sign a paternity acknowledgment form. The paternity acknowledgment form adds the father’s name to the child’s birth certificate.

You can usually change your child’s last name through your state government website. Be sure to have all necessary documents and identification cards on hand, whether you begin the process online, over the phone, or in person.

Father’s Rights in Naming a Child

In most states, a father will need to establish paternity and have their name listed on the child’s birth certificate before establishing legal rights. Then, they can have a say in the naming process.

Usually, both the father and the child’s mother will have to agree to the name change. If there’s a dispute or disagreement over this aspect of a child’s life, you will have to go to court. If negotiations between the parents fall apart, court proceedings are common. A name change will then require a court order. Without parental consent, it may be best to consult and retain a family law attorney.

The court will always examine any problem and make any decision related to the child in the child’s best interests. Courts may consider some common factors when taking on a case related to a name change, such as:

• How the child feels about the change and the proposed new name
• The motivation behind a suggested name change
• How a potential name change could influence the child’s relationship with his or her parents
• How the name change could affect the child

Can a Father Change a Child’s Last Name?

A father can change a child’s last name so long as his paternity is officially listed on the child’s birth certificate and the mother also agrees to the new surname.

A filing fee is generally necessary, along with the requisite paperwork, with the cost varying from state to state.

Can a Mother Change a Child’s Last Name?

In most cases, a mother can change a child’s surname without having to establish maternity. However, if a mother and child are separated, and there’s no paper trail, the mother may need to establish maternity. This is similar to a father’s requirement to establish paternity to legally exercise his parental rights.

Just as when a father is proceeding with a surname change for their child, mothers also have to pay the filing fee and produce the necessary paperwork.

Changing a Child’s Last Name Without Consent

When a child’s parents disagree on the suggested name change, things become more complicated.

In these cases, a judge usually decides the child’s name after hearing the evidence and arguments from both sides. While state laws vary, typically the most important factor in determining the outcome of these cases—beyond legally established paternity and maternity in relationship to the child—is the minor’s welfare.

Many factors affect how to best proceed, and laws vary from place to place. Contact a local and experienced family law attorney for the best legal advice regarding a name change.