The Federal Circuit and Family Court of Australia (FCFCOA) is the unified federal court that handles family-law matters in Australia. It was created in September 2021 by merging the Federal Circuit Court and the Family Court of Australia into a two-division single court (Division 1 handles complex matters; Division 2 handles general family-law matters). The unified court applies the Family Law Act 1975 and the FCFCOA Rules 2021.

Do all states use the FCFCOA?

Federal family-law matters across Australia go through the FCFCOA except in Western Australia, which retains its own Family Court of Western Australia for state-jurisdiction matters. The evidentiary principles are similar across both, governed by the same Evidence Act 1995 (Cth) framework.

What is hearsay and does it apply to my text messages?

Hearsay is evidence of a previous representation (statement) made by a person other than the witness, used to prove the truth of what was represented. In family-law contexts the rule has practical exceptions: messages between the parties to the proceedings are generally admissible because they are 'representations' made by the party against whom they are tendered (an admission). Talk to a lawyer for the specifics of your matter — hearsay rules are technical.

Can I bring messages between me and a third party (like a friend or relative) as evidence?

Sometimes. If the messages are relevant to a fact in dispute, the court can admit them. The hearsay rules can apply more strictly here than to messages between the parties to the proceedings. Use third-party messages selectively and with legal advice.

What is 'best evidence' and does it apply to electronic records?

The 'best evidence' rule traditionally required the original of a document to be produced rather than a copy. In modern Australian law (Evidence Act 1995 (Cth) section 48), the rule has been substantially relaxed — copies, reproductions, and electronic outputs are accepted on the same basis as originals, provided their authenticity can be established.

Are children's statements admissible as evidence?

Children generally do not give direct evidence in Australian family-law proceedings. Their views are usually conveyed through a Family Report, an Independent Children's Lawyer (ICL), or through evidence of what they have said to a parent or other adult. Recordings or messages from children themselves are unusual evidence and should be handled carefully — talk to a lawyer.

How is evidence actually filed with the court?

Through the Affidavit process. You (or your lawyer) prepare a sworn statement attaching the relevant evidence as exhibits. Documents (including PDFs, screenshots, emails) are typically attached as numbered exhibits and referred to in the body of the affidavit. The FCFCOA has prescribed forms for affidavits — your lawyer or the court's self-represented litigants page can guide on the format.

Family Court of Australia: evidence rules for parents (2026)

If you are preparing for or already in a matter before the Federal Circuit and Family Court of Australia (FCFCOA), understanding the evidence rules is essential — both to know what counts as evidence and to know what kind of record you should be building.

This guide is general information about the rules and how they apply to communication evidence between parents. I am not a lawyer; this is not legal advice. For your specific matter, talk to a family lawyer or contact the FCFCOA's self-represented litigants service.

The framework

Family-law evidence in Australia is governed by three intersecting things:

Family Law Act 1975 (Cth). The substantive law that defines what the court decides — parenting arrangements, property division, child support, etc.
Evidence Act 1995 (Cth). The procedural law that governs what counts as evidence and how it is admitted. Applies to all federal courts including the FCFCOA.
FCFCOA Rules 2021. The court's own procedural rules, including how affidavits are prepared, exhibits attached, and material filed.

For parents preparing communication evidence, the Evidence Act and FCFCOA Rules are where the practical rules live.

The three principles that matter

Most communication evidence comes down to three questions the court asks.

1. Is it relevant?

Section 55 of the Evidence Act defines relevant evidence as evidence that, if accepted, "could rationally affect (directly or indirectly) the assessment of the probability of the existence of a fact in issue." Translated: does it speak to a fact the court is being asked to decide?

For parenting matters, relevant evidence typically includes:

Communications about pickup arrangements, schooling, medical decisions, holidays
Communications showing how decisions about the children have been made
Communications relevant to a parent's behaviour or capacity
Communications relevant to specific incidents in dispute

Two years of routine "running 5 minutes late" messages are not particularly relevant to a relocation application. The same archive may be very relevant to a contact-arrangement dispute.

2. Is it authentic?

Authenticity is the threshold question for any document or record: is it what it says it is? For electronic records, this generally means demonstrating:

The communication occurred
It came from the claimed sender
It was sent on the claimed date
It says what is presented

For text messages from your phone, authenticity is established by demonstrating the device, the phone number, and the conversation thread. Sometimes through carrier records if specifically challenged.

For platform-based records (OFW, Talking Parents, It's In Writing), authenticity is generally easier — the platform's own export carries the authentication, and the platform itself can be subpoenaed if required.

3. Is the integrity intact?

Integrity is about whether the record has been altered after the fact. This is where evidence types differ most sharply.

Plain SMS or screenshots — integrity rests on the user's good faith. If alteration is alleged, proving non-alteration is difficult.
Platform records with append-only design — integrity is enforced architecturally. The platform cannot UPDATE or DELETE a message even if asked.
Hash-chained records — integrity is mathematically verifiable. We have a separate guide on hash chains explaining how this works.

The court considers the integrity properties when weighing evidence. Stronger integrity = stronger evidence.

What gets admitted, in practice

In an FCFCOA matter, communication evidence typically gets admitted through:

Affidavits

The standard route. You (or your lawyer) prepare a sworn affidavit setting out the relevant facts and attaching the supporting evidence as numbered exhibits. The affidavit refers to the exhibits ("annexed hereto and marked 'A' is a true copy of the message thread between [me] and [the other parent] dated 12 March 2026").

For communication evidence, exhibits are typically:

Printed copies of relevant SMS or app threads
PDF exports from co-parenting platforms
Screenshots, where platform exports are not available
Email printouts, with header information visible

Subpoenas

Less common for parent-to-parent communications, but available. A subpoena to a platform provider can produce the platform's own server-side record, which is generally stronger evidence than the parent's own export. Used when the integrity of the parent's record is seriously challenged.

Direct production by the platform

Some platforms produce export formats specifically intended for court use. OFW's "Court PDF" format is the best-known example. Platform exports come with the platform's own authentication and are generally admitted readily.

What strengthens or weakens evidence

The court weighs communication evidence on a sliding scale of credibility. Things that strengthen the evidence:

Server-side storage rather than device-side
Server-clocked timestamps rather than device-clocked
Tamper-resistant integrity (hash chains, append-only design)
Bidirectional record (your messages and theirs, in chronological order)
Read receipts recorded by the platform
Court-shape PDF export with integrity markers visible
Platform that can be independently subpoenaed if integrity is challenged

Things that weaken the evidence:

Selective preservation — keeping the convenient messages and not the inconvenient ones
Editable platforms — WhatsApp's "delete for everyone" or iMessage's "edit" feature
One-sided records — you have your messages but no record of the other parent's
Late-created records — exports made after the matter became live, not contemporaneously
Annotated or commented records — your own notes added on the original messages
Inconsistent timestamps — device clocks that don't agree across messages

Specific guidance for self-represented parents

If you are self-representing in family law (and many parents do, especially in Division 2 matters), the FCFCOA has helpful resources:

The court's self-representation guide explains the process from filing through hearing.
Affidavit templates are available from the court website.
Family Relationship Centres offer free or low-cost mediation services that often resolve matters before they reach court.

For evidence specifically:

Build the record contemporaneously. Don't try to assemble it after the matter starts.
Keep originals (or platform-verifiable copies). Don't annotate, edit, or "tidy up" the record.
Be ready to authenticate. If you submit screenshots, be prepared to demonstrate the original messages on the device.
Don't volunteer what you don't need to. The court wants relevant evidence, not the full archive.
Talk to a lawyer at least once. Many family lawyers offer fixed-fee initial consultations. Even one hour can clarify what your specific matter needs.

A note on cross-examination of evidence

If your matter goes to a hearing and the evidence is contested, expect to be cross-examined on:

How the messages were captured (screenshot? export? when?)
Whether anything has been edited, annotated, or altered
Whether the dates and times shown are accurate
Whether the conversation thread is complete or curated
Whether you have the full record or only excerpts

A platform-based record handles all five of these better than screenshots. The platform itself is the answer to "how were the messages captured" and "is this the full record."

Try It's In Writing

If you want a platform that produces evidentiarily strong communication records — Australian-built, hash-chained, A$39.95 per parent per year — start free. Five messages on signup, no card required.

Better evidence costs less than poor evidence. The cost of a strong record now is a fraction of the cost of trying to prove a weak record later.

Related guides

Are text messages admissible in Family Court Australia? — admissibility specifically.
How to document co-parent communication for court (Australia) — the practical step-by-step.
Screenshots vs an immutable record — the head-to-head on evidence types.
What is a hash chain? — the cryptography behind integrity.