Check your state or country’s rules for changing a child’s last name
Confirm whether both parents must consent
Gather required documents, such as the child’s birth certificate and your ID
Complete the name change petition or application form
File the paperwork with the appropriate court or government office
Pay the required filing fee or request a fee waiver if available
Notify the other parent if required by law
Attend any scheduled court hearing
Obtain the court order or official approval
Update the child’s records with the new last name at the Social Security office, school, doctor, and other institutions