Legal/7 min
§ Legal

Duty of disclosure, explained

28 April 20267 min

I had three banker's boxes on the dining room table at 11:40pm on a Tuesday and a cold cup of tea I had forgotten to drink. My solicitor's checklist was open in one tab. The Federal Circuit and Family Court of Australia disclosure rules were open in another. The kids were asleep upstairs. I was looking for a 2019 SMSF actuarial certificate I was almost sure I had thrown out, and the certainty in "almost sure" was eroding by the minute.

I found it. Stuck inside a Christmas card from my late uncle. Of course.

This isn't legal advice. It is one man's attempt to be honest about what total disclosure actually feels like.

The rule, in one breath

Under the Federal Circuit and Family Court of Australia (Family Law) Rules 2021, every party to a financial case has a duty of disclosure. Full and frank. Ongoing. To the other side and to the court.

That is the entire rule. Everything that follows is texture.

Full means everything material to the issues in the matter. Frank means without spin, without strategic omission, without "I'll mention it if they ask." Ongoing means from the first communication of intent to litigate (or apply for consent orders) until the matter ends, with a continuing obligation to update if your position changes.

The rule applies whether you are doing consent orders on the kitchen table or fighting a contested final hearing. There is no minor-matter exemption. There is no "we agreed not to bother" exemption. Even if your former partner says they trust you and don't need it, the court still does.

What "every" actually means

The list is longer than people expect. A reasonable working version, drawn from the rules and the standard solicitor checklists.

  • Income. Last three years of personal tax returns and notices of assessment. Recent pay slips. Centrelink statements if applicable. Royalties, rental income, board payments from adult children, distributions from family trusts.
  • Assets. Real property (with current market appraisals or formal valuations). Vehicles. Boats. Caravans. Furniture and white goods over a threshold (varies by matter, often $5,000). Jewellery and collectables of meaningful value. Cryptocurrency wallets and exchange accounts. Cash in safes or in someone else's name "for safekeeping".
  • Liabilities. Mortgages, personal loans, car loans, credit cards, BNPL accounts, HELP/HECS, tax debts, ATO payment plans, money owed to family members documented or otherwise.
  • Superannuation. Every fund you have ever held, with current member statements. SMSFs require the trust deed, the latest financial statements, the actuarial certificate, member balances.
  • Business interests. Shareholdings (public and private), partnership interests, sole trader operations, company directorships even if dormant, the last three years of company financials and tax returns where you are a director or beneficial owner.
  • Trusts. Any trust where you are settlor, trustee, appointor, beneficiary (named, default, or potential), or hold a power. The trust deed itself. Recent financial statements. Distribution history.
  • Bank and financial accounts. Twelve months of statements for every account in your name, jointly held, or where you are a signatory. This includes the account you opened in 2017 and forgot about, the offset, the joint account with your sister for nan's care home, and the PayPal balance.
  • Disposed assets. Anything sold, gifted, or transferred in the year before separation and since separation. The "I sold the boat to a mate for ten grand" transaction is exactly the kind of thing that gets discovered later.

If you are reading that list and a small voice is saying "do I really have to mention X," the answer is yes. Mention X.

The "ongoing" trap

The duty doesn't end when you sign the affidavit. It runs the entire matter. Your circumstances change and the disclosure has to keep pace.

You get a new job in month four. Disclose it. You receive an inheritance. Disclose it. The business has a windfall quarter. Disclose it. Your super fund crystallises a gain when you switch investment options. Disclose it. The car you valued at $18,000 turns out to need a $6,000 repair the buyer's mechanic finds. Update the figure.

This is the part that catches people. They prepare a single big disclosure pack for the first conference and treat it as done. Nine months later at the final hearing they are asked under oath whether anything has changed and they hesitate. The hesitation is on the transcript. The hesitation is the problem.

A simple discipline. Once a fortnight, for the duration of the matter, half an hour with the spreadsheet. New transactions, new statements, anything that has moved more than a token amount. If nothing has moved, write "no change" and date it. The note itself is evidence of diligence.

What happens when you hide

The penalties are not theoretical. The Australian family law system has been calibrating them for forty years and the case law is not gentle.

  • Costs orders. The court can order you to pay the other side's legal costs, in part or in full, where non-disclosure has caused them. Add-back arguments cut the same way.
  • Adverse inferences. Where disclosure is incomplete, the court can infer the missing information would have been unhelpful to you. Quantum gets estimated against you, not for you.
  • Set-aside of orders. Final property orders can be set aside under section 79A of the Family Law Act if material non-disclosure is established later. The matter reopens. The peace you thought you had bought is unbought.
  • Contempt and perjury. False sworn statements are a criminal matter. Prosecutions are rare but they happen, and the Family Court has shown willingness to refer matters to the DPP.
  • Reputational rot with the bench. Judges remember. The barrister who appears in front of them next year remembers. The system is smaller than people think.

Body metaphor. Hiding an asset is like a splinter you decide to leave under the skin. It doesn't dissolve. It walks. Three years on it's in a different finger and the infection has its own postcode.

NEVER the strategic move people imagine

I have heard the same fantasy a dozen times. "I'll keep the crypto wallet quiet, settle the rest, and crystallise it later." Or "the cash business does maybe fifteen grand a quarter and they'll never trace it." Or "the trust is discretionary, they can't touch it."

It doesn't work. Forensic accountants who specialise in family law matters are very good at what they do. Bank subpoenas reach offshore correspondent accounts. ATO data matching catches the cash business. The trust deed comes out in disclosure regardless. And the cost of the discovery, when it lands, is always greater than the cost of having disclosed.

The honest move is also the smart move. The full disclosure pack, prepared properly, is the foundation that lets your lawyer negotiate from confidence rather than fear. It is the thing that makes settlement possible, because the other side can verify what they're agreeing to. It is the thing that makes your sworn statements survivable.

The practical shape of doing it well

A few moves that genuinely help.

  • Start a disclosure folder on day one of separation. Not day one of litigation. Day one of separation. Cloud-synced, dated subfolders.
  • Pull twelve months of statements for every account before the bank's online portal cuts you off. Some banks limit retrieval to 90 days for closed accounts.
  • Get a registered valuation, not a real estate appraisal, for any property where the value is contested. The cost is $600 to $1,200 and it ends the argument.
  • Engage an accountant familiar with family law matters for the business and trust pieces. A general business accountant will miss the family-law-specific schedules.
  • Sign the affidavit slowly. Read every paragraph aloud. The five extra minutes is the cheapest insurance you will ever buy.

Disclose now. Disclose all. Disclose again.

RL
Written by Robin Leonard · April 2026
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