The Affidavit to Use the Surname of the Father is a crucial document in Australian family law and administrative procedures when seeking to change a child's surname to match their father's. This document is typically required when parents were not married at the time of the child's birth, when the father's details were not included on the original birth certificate, or when there has been a subsequent desire to adopt the father's surname. The affidavit must be prepared in accordance with Australian state or territory requirements and includes detailed information about all parties involved, the reasons for the name change, and how it serves the child's best interests. It forms part of the official application process to the Registry of Births, Deaths and Marriages in the relevant state or territory. The document must be sworn or affirmed before an authorized witness, such as a Justice of the Peace or legal practitioner, and may be required for court proceedings if there are disputes about the name change.

1. Title and Heading: Formal title of the affidavit, court details if applicable, and matter reference

2. Deponent Details: Full legal name, occupation, and address of the person making the affidavit

3. Child's Current Details: Current full legal name, date of birth, and place of birth of the child

4. Father's Details: Full legal name, occupation, and address of the father whose surname is to be used

5. Current Family Situation: Description of current living arrangements, custody arrangements, and relationship between parents

6. Reasons for Name Change: Detailed explanation of why the change of surname is being requested

7. Consent Statements: Statements regarding consent from all relevant parties, including the other parent if applicable

8. Best Interests Declaration: Statement explaining how the name change serves the best interests of the child

9. Jurat: Formal closing, including place and date of signing, signature block, and witness details