Affidavit proof of signature (non-divorce)
The Affidavit of Proof of Signature (non-divorce) is the FCFCOA form proving the signature on an Acknowledgment of Service in non-divorce family law cases.
Word document from Federal Circuit and Family Court of Australia's website.
DraftOur fillable copy of this form has not been through editorial review yet. Check it against Federal Circuit and Family Court of Australia's current form before you rely on it.
- Format
- Word (DOCX)
- Category
- Court form
- Version
- v7749a94f
- Last updated
- 14 October 2026
Federal Circuit and Family Court of Australia · Federal Circuit and Family Court of Australia (Family Law) Rules 2021

For law practices: this form maps to the published matter-field vocabulary, so your practice management system fills it from your matter data - on your own machine. Practice management systems can fetch and assemble it through the document assembly API.
What the Affidavit proof of signature (non-divorce) is for
Service of a family law application is proved by an affidavit of service, by the respondent filing a notice of address for service or a response, or, where a lawyer accepted service, by a lawyer-signed acknowledgment (r 2.32(1) of the Federal Circuit and Family Court of Australia (Family Law) Rules 2021). Evidence about the identity of the person served may be given by another person (r 2.32(5)). Where the person served has signed an Acknowledgment of Service, this affidavit lets someone who knows their signature confirm it is theirs. The court's form page says it is used when proof of signature is needed to confirm service in family law proceedings other than divorce. The form's heading refers to rule 2.31(5); in the current rules, proof of service is dealt with by rule 2.32.
When you need it
- Documents in a family law case (not a divorce) were served and the person served signed an Acknowledgment of Service.
- You need to show the court the signature is genuinely that of the person served.
- For divorce applications use the Affidavit Proving Signature (Divorce) instead.
How to fill it in
- 1
Filing details
Tick the court division, give the name of the party it is filed for, the file number, and the name of the deponent and date of swearing or affirming.
- 2
Part A - the parties
Each applicant's and respondent's family name (as used now) and given names.
- 3
Part B - about you
Your name, gender, occupation and address.
- 4
Part C - the evidence
Give the full name of the person who signed the attached Acknowledgment of Service. The form states you recognise the signature because you have seen that person sign that way on other occasions, so only make the affidavit if that is true.
- 5
Part D - swear or affirm
Sign before a Justice of the Peace, notary public or lawyer, who prints their name and ticks their capacity. Attach the signed Acknowledgment of Service and complete the prepared by box.
Filing, lodging and service
- The court says to eFile the affidavit on the Commonwealth Courts Portal. If you cannot file online, file it at the registry where the matter is being heard.
- If you are not registered on the Portal or cannot see your file, the court's page explains how to use the enquiry form to get your client details.
- File it with the affidavit of service or other proof of service it supports, so the court has the full evidence of service (r 2.32).
Common mistakes
- Attach the actual signed Acknowledgment of Service; the affidavit refers to it.
- The deponent should be someone familiar with the signature, not just the person who received the form back.
- Every page of an affidavit must be signed by the deponent and the witness (r 8.16(1)(d)).
Frequently Asked Questions
When do I need an affidavit of proof of signature in family law?
When you rely on an Acknowledgment of Service signed by the person served to prove service, and the court needs evidence that the signature is theirs. The court's page says it is for proceedings other than divorce.
Who signs an affidavit of proof of signature?
A person who recognises the signature because they have seen the person sign that way before. It is sworn or affirmed before a JP, notary public or lawyer.
Checked against the official sources on 26 October 2026
- Federal Circuit and Family Court of Australia (Family Law) Rules 2021 rr 2.28, 2.32, 8.16
- FCFCOA - Affidavit proof of signature (non-divorce)
- FCFCOA - How do I serve family law documents?
- FCFCOA - Affidavit of proof of signature form (Word)
General information about the form, not legal advice about your matter. Rules and forms change: if anything here differs from the court or agency's current instructions, theirs apply.
Field map
2 boxes on the Affidavit proof of signature (non-divorce) fill from your matter.
- Client
- Client full name(s)
Matter plans that use this form
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