What Evidence Do You Need for a Tribunal Hearing in Australia?

Tribunals decide cases on evidence, not stories. Walk in with nothing but your word against theirs and you will lose, even if you are right.

Australian tribunals require you to prove your case on the balance of probabilities. That means documents, witness statements, photos, and sometimes expert reports. This guide explains what each type does, when you need it, and how to prepare it.

The four types of evidence tribunals accept

Australian tribunals rely on four categories:

Documentary evidence — contracts, invoices, emails, text messages, receipts, bank statements, letters of demand, inspection reports, lease agreements, any written record that proves a fact.

Witness statements — written accounts from people who saw, heard, or experienced something relevant to the dispute, including your own statement.

Photographic and video evidence — images or recordings showing damage, defects, property condition, or relevant events. Must be dated and authenticated.

Expert reports — independent assessments from qualified professionals such as builders, engineers, accountants, or valuers when technical knowledge is required.

Most cases rely heavily on documents and witness statements. Photos and expert reports come in when the dispute involves physical damage or technical issues.

Documentary evidence — the foundation

Documents created at the time events occurred are more reliable than memories months later.

Tribunals prefer contemporaneous records — emails sent on the day, invoices issued at the time, text messages exchanged during the dispute. These are harder to fabricate than oral evidence given at a hearing.

What you need depends on your claim:

• Debt recovery — invoice, contract or quote, proof of delivery, payment reminders, letter of demand, bank statements showing no payment
• Defective goods or services — purchase receipt, warranty, photos of the defect, correspondence with the seller, repair quotes
• Rental disputes — lease agreement, condition reports, bond lodgement receipt, photos of damage, repair invoices
• Contract disputes — signed contract, emails confirming terms, invoices for work done, evidence of breach, correspondence attempting resolution

Vague claims fail. If you say the other party agreed to pay $5,000, you need the invoice, quote, or email confirming the amount. If you say they breached the contract, you need the contract and evidence showing what they failed to do.

How to organise documents:

1. Create a chronological index listing every document with date and brief description
2. Number each document and refer to them by number in your witness statement
3. Remove duplicates
4. Redact irrelevant personal information
5. Print clearly if submitting hard copies — black and white, single-sided, stapled or clipped

Most tribunals now accept electronic filing. Check your tribunal’s website for formatting requirements — typically PDF, under a certain file size, with clear naming.

Witness statements — your version in writing

A witness statement is a written account of what you saw, heard, or did, signed and dated, that becomes evidence before the tribunal.

Your own statement is the most important piece of evidence you will prepare. It tells the tribunal what happened, supported by the documents you rely on.

What a good witness statement includes:

• Your full name, address, and role in the dispute
• Clear chronological account of events — what happened, when, where, who was involved
• References to supporting documents — “On 15 March 2024, I sent an invoice for $3,200 (Doc 3)”
• Direct quotes from conversations where relevant — “The builder said ‘I’ll have it fixed by Friday’ but never returned”
• Statement of truth — “I believe the facts stated in this witness statement are true”

What tribunals do not want:

• Legal argument — save that for submissions
• Opinions about character — “He is a liar” is not evidence
• Irrelevant background — stick to facts that matter
• Hearsay — “My friend told me…” is not admissible unless your friend provides their own statement

If others witnessed key events, get statements from them. A neighbour who heard the argument, a colleague who saw the defective work, a family member present when the agreement was made — these corroborate your version.

Witness statements must be signed and dated. Some tribunals require them sworn before a justice of the peace or solicitor. Check your tribunal’s directions.

Photographic and video evidence — showing what words cannot

Photos and videos are powerful when disputes involve physical damage, defects, or property condition.

Common uses:

• Property damage — damaged fence, broken window, flooded bathroom
• Defective goods — close-ups showing cracks, stains, missing parts
• Rental disputes — move-in and move-out photos proving good condition
• Building disputes — progress photos showing incomplete or substandard work

How to make photos admissible:

1. Take them as soon as possible after the issue arises
2. Include date stamps if available
3. Take wide shots for context and close-ups for detail
4. Avoid editing or filtering
5. Print clearly or submit high-resolution digital files
6. Reference them in your witness statement — “Photo 1 shows water damage to the ceiling on 10 April 2024”

Video evidence follows the same rules. If you have a recording of the other party admitting fault or footage of defective work, include it. Ensure the recording was made lawfully — secretly recording private conversations may breach privacy laws in some states.

Expert reports — when technical knowledge is required

Expert reports are used when the tribunal needs specialist knowledge to decide the case. The person must have recognised qualifications and experience in the relevant field.

When you need an expert report:

• Building disputes — structural engineer, quantity surveyor, or licensed builder to assess defects and estimate repair costs
• Motor vehicle damage — panel beater or mechanic to assess damage and provide a quote
• Property valuation — registered valuer to determine market value or loss
• Accounting disputes — accountant to verify financial records or calculate losses

Expert reports must be independent. The expert’s duty is to the tribunal, not to you.

What a proper expert report includes:

• The expert’s qualifications and experience
• Clear statement of the question they were asked to answer
• Facts and assumptions they relied on
• Their opinion with reasoning
• Statement that they understand their duty to the tribunal

Expert reports typically cost $1,500 to $5,000 depending on complexity. Only commission one if the amount in dispute justifies the cost, or the tribunal has ordered you to obtain one.

Some tribunals allow you to call the expert to give oral evidence at the hearing. Others rely on the written report alone. Check your tribunal’s practice directions.

What tribunals actually rely on

Tribunals are not impressed by emotion, volume, or confidence. They decide cases based on evidence that proves facts on the balance of probabilities.

The hierarchy of reliability:

1. Contemporaneous documents — created at the time, hard to fake
2. Independent expert reports — objective, qualified opinion
3. Corroborated witness statements — multiple people saying the same thing
4. Your own witness statement — credible if consistent with documents
5. Oral evidence at the hearing — less reliable because memories fade

If your case relies entirely on your word against theirs, with no documents, photos, or independent witnesses, you are in trouble. Tribunals will often find that neither party has proven their case and dismiss the claim.

What makes evidence weak:

• Created after the dispute arose — a letter written six months later is not contemporaneous
• Inconsistent with earlier documents — if your witness statement contradicts your emails, the tribunal will prefer the emails
• Self-serving — a statement from your spouse or business partner is less credible than one from an independent witness
• Vague or incomplete — “He said he would pay me” is not evidence of a contract

The best cases are those where documents tell the story without you needing to say much. Invoice issued, work done, invoice unpaid, letter of demand sent, no response. The tribunal can see the entire timeline.

How Claim Done helps you prepare tribunal evidence

They walk in with random documents, no witness statement, and no clear narrative.

Claim Done’s Witness Statement service generates a professionally structured witness statement based on the facts you provide and the documents you describe. Our Programmatic Algorithms work from your answers, set out the key facts, and draft a clear chronological account that references supporting documents.

You get a witness statement ready to sign, file, and rely on at the hearing — no legal jargon, no irrelevant background, just the facts the tribunal needs. In New South Wales (NCAT and the courts) you get an outline you complete in your own words.

If you are preparing a tribunal application, Claim Done also drafts your application (for a New South Wales debt, a Local Court statement of claim) and a witness statement.

Final checklist before your hearing

Before you file evidence or walk into the hearing, check:

• Every fact in your witness statement is supported by a document, photo, or independent witness
• Documents are organised, numbered, and indexed
• Photos are clear, dated, and referenced in your statement
• If you need an expert report, it has been commissioned and filed on time
• You have complied with the tribunal’s directions on filing deadlines and formatting

Tribunals are not courts. The process is simpler, the rules are more flexible, and you do not need a lawyer. But you do need evidence.

Get your witness statement prepared now

Claim Done drafts witness statements in about 5 minutes. Tell us what documents you have, answer a few questions, and get a professionally structured statement that references your evidence and tells your story clearly. Fixed fee, no subscription, for you to check, sign and file yourself (in New South Wales, an outline you complete in your own words).

Get your witness statement prepared now.

Frequently Asked Questions

Can I just tell the tribunal what happened without any documents?

No. Tribunals decide cases on evidence, not oral testimony alone. If you have no documents, photos, or independent witnesses, the tribunal will likely find that you have not proven your case on the balance of probabilities. Your word against theirs is not enough.

Do I need a lawyer to prepare my witness statement?

No. Most tribunal cases do not require a lawyer. You can prepare your own witness statement as long as it is clear, chronological, and references the documents you are relying on. Claim Done drafts witness statements for $49 (in New South Wales, an outline you complete in your own words).

Can I use text messages and WhatsApp conversations as evidence?

Yes. Text messages, WhatsApp, Facebook Messenger, and email are all admissible as documentary evidence. Take screenshots showing the date, time, and sender, and include them in your document bundle with clear references in your witness statement.

What if the other party does not file any evidence?

If the other party does not file evidence or attend the hearing, the tribunal will usually decide the case based on your evidence alone. But you still need to prove your case — the tribunal will not automatically rule in your favour just because the other party did not show up.

How far in advance do I need to file my evidence?

Most tribunals require evidence to be filed and served 7 to 14 days before the hearing. Check the tribunal’s directions or practice notes for your state. If you miss the deadline, you may need to apply for leave to file late evidence, which the tribunal may refuse.