A customer owes you $38,000 across six unpaid invoices. They have agreed in principle to pay it back, but only on a schedule. You can shake hands and hope, or you can put the arrangement in a deed of acknowledgement of debt. The deed is the document that turns a conversation about paying into a signed commitment you can enforce.
A deed of acknowledgement of debt is a formal document in which the debtor admits a specific amount is owed and agrees to repay it on stated terms. It sits alongside your original agreement, not instead of it. Because it is a deed rather than an ordinary contract, it binds without consideration, it can restart the limitation clock on an older debt, and in most states it gives you a longer window to sue if payments stop. The catch is that a deed only delivers those advantages if it is drafted and executed correctly. This article walks through the clauses that matter, the drafting choices behind them, and the traps that undermine them.
The clauses that pin the debt down
Who the parties are and who signs
The deed must identify the creditor and the debtor with precision. For companies, use the full registered name and ACN. For individuals, use the full legal name. The most common mistake is naming a trading name: if the debtor trades as Blue Sky Plumbing but your contract was with Blue Sky Plumbing Pty Ltd, the deed may bind the wrong entity or none at all.
- Trading names: a business name is not a legal entity. Name the company or individual that actually owes the money.
- Signatory authority: if a director signs for the company, record their name and position, and make sure the deed is executed in line with s 127 of the Corporations Act 2001 (Cth) (more on this below).
- Multiple debtors: if two entities owe the debt, list both and state whether they are jointly liable.
The acknowledgment of the debt itself
This is the heart of the deed. The debtor states in clear terms that it owes the creditor a specified amount, identifies the basis of the debt (for example the invoices or agreement that created it) and confirms the amount is due and payable. The acknowledgment is what makes the document work. It is the written, signed admission that can reset the limitation period, and it is the statement a court will rely on if you sue.
- What to pin down: the exact amount, how GST is treated, the invoices or contract the debt arises from, and the date the amount fell due.
- The variant the debtor will push for: wording that acknowledges a debt "to be verified" or "subject to reconciliation". It sounds reasonable, but it defeats the purpose. Insist on a fixed figure, or a schedule that fixes the figure.
- Set-off and defences: the debtor may ask to preserve rights of set-off or counterclaim. If you accept that, the acknowledgment is qualified and much weaker. Decide consciously whether the deed records an undisputed amount.
The repayment plan
The deed should say exactly how the debt will be paid: a lump sum by a date, or instalments with amounts and dates. Include the bank account for payment and state how payments will be applied, for example to interest first or to principal.
- Instalment schedule: list each instalment amount and due date. A schedule attached to the deed is cleaner than a paragraph of prose.
- Application of payments: if the deed is silent, the debtor can argue payments went to the oldest invoices or to interest first. State your preference.
- The trap: repayment terms that say "fortnightly payments" without a start date, or instalments that do not add up to the acknowledged total, create arguments later.
Interest
If you want interest, the deed must say so. Specify the rate, whether it is simple or compounding, when it starts (usually from the due date or from default) and whether it applies to overdue instalments.
Interest terms also need to be defensible. An extravagant rate, or a default charge out of proportion to the loss, can be challenged as a penalty and struck down. A rate that tracks a commercial benchmark, or a stated percentage reflecting the real cost of the money, is far safer than a punitive figure. Where the debtor is an individual and the debt arises from credit for personal use, the National Credit Code may impose its own requirements, so check that before drafting.
The clauses that protect you if payment stops
Default and acceleration
The deed should define what counts as a default and what happens next. Typical events of default are a missed instalment, a failed payment, or the debtor going into administration, liquidation or bankruptcy.
- Grace period: a short cure period, say 7 to 14 days after written notice, is standard. The debtor will push for longer, the creditor for none.
- Acceleration: the clause that makes the whole outstanding balance due immediately on default. Acceleration of unpaid principal is standard and enforceable. Acceleration that adds a premium or a windfall charge is where penalty arguments start.
- Insolvency triggers: including insolvency events as defaults means you are not left waiting to see whether a liquidator will pay.
Costs and indemnities
If you have to chase payment, you want the debtor to carry the cost. A clause requiring the debtor to pay your reasonable enforcement costs, including legal fees and collection costs, is common and worth having.
The operative word is reasonable. A costs clause that promises the debtor will pay "all costs on an indemnity basis" can still be scrutinised by a court, and amounts that cannot be justified will be trimmed. Keep the clause to costs that are actually incurred and capable of proof.
Security, guarantees and the PPSR
A deed of acknowledgement of debt does not by itself give you security over the debtor's assets. If the debt is large, or the debtor's financial position is uncertain, consider adding a security interest over personal property (for example equipment, stock or receivables) or a guarantee from a director or related entity.
If you take a security interest in personal property, registration on the Personal Property Securities Register (PPSR) is what makes it effective against third parties and liquidators. The stakes are high: under s 267 of the Personal Property Securities Act 2009 (Cth), an unperfected security interest vests in the grantor if the debtor is wound up, goes into administration or becomes bankrupt. In plain terms, if you do not register, the security can evaporate at the moment you need it most. Registration details, including the collateral class, grantor identifiers and timing, all matter.
A director's guarantee works differently. It makes the director personally liable if the company cannot pay, which concentrates minds and gives you a second pocket to enforce against. It does not need PPSR registration, because it is not a security interest over property.
The limitation clock
This is where a deed earns its keep. In New South Wales, an action on a simple contract must be brought within six years under s 14 of the Limitation Act 1969 (NSW), but an action on a deed has twelve years under s 16 of the same Act. Victoria runs longer still: s 5 of the Limitation of Actions Act 1958 (Vic) allows six years for a simple contract but fifteen years for a bond or other specialty, and a deed is a specialty. In effect, a deed can roughly double your time to enforce.
The deed can also reset the clock on an older debt. In NSW, s 54 of the Limitation Act 1969 provides that a written acknowledgment of the debt signed by the debtor, made after the limitation period starts but before it expires, restarts the period: the time before the acknowledgment stops counting.
The trap is the words "before it expires". An acknowledgment signed after the limitation period has already run out does not revive the debt. If your debt is close to the six-year mark, the deed needs to be signed while there is still time, and you should take advice on where the clock actually stands before you rely on it. Other states have their own rules, so treat this as a reason to check, not to assume.
Governing law and jurisdiction
Name the law that governs the deed and the courts that will hear a dispute. If the parties are in different states, this clause removes a whole class of argument about which state's limitation period and rules apply.
- Governing law: usually the state where the creditor is based or where the contract was made.
- Jurisdiction: nominate a specific court, so there is no fight about venue.
- The trap: leaving this out does not make the deed invalid, but it invites the debtor to argue for a forum that suits them.
Executing the deed so it binds
A deed that is not executed correctly may still be a valid contract, but you lose the point of the exercise. The formalities are the price of admission.
For a company, execution follows s 127 of the Corporations Act 2001: the document is signed by two directors, or a director and the company secretary, or a sole director who is also the sole secretary, or the sole director of a proprietary company with no secretary. Signatures can be given electronically under the technology neutral signing provisions, which is useful when the parties are in different places.
For an individual, state law applies, and in most states a witness should be present and record their name and address. Remote witnessing is permitted in some states and not others, so check the rules for your jurisdiction rather than assuming. Whatever the method, the document must say it is executed as a deed, and it must be delivered to take effect. Most modern deeds treat signing and exchanging copies as delivery, but an express clause stating this removes any doubt. Keep the signed copy on file, because you may need it years later.
Optional clauses worth adding
Depending on the circumstances, a few further clauses are worth considering:
- Release on full payment: include when you want to close the matter permanently, for example after a dispute, so the debtor gets a formal release and you get certainty that the obligation ends.
- Guarantee and indemnity: add when the debtor is a company with few assets and a director or parent company can realistically back the debt.
- Security over assets: include, with PPSR registration, when the amount is substantial or the debtor's financial position is uncertain.
- No set-off and no waiver: include when you want the debtor to pay the full amount without deducting counterclaims, and when you do not want a single late payment treated as a waiver of your rights.
- Dispute resolution: include when the commercial relationship continues and you want disagreements about the debt handled by negotiation or mediation before court.
How an Artificer Legal practitioner would approach this deed
If you are the creditor, we would start by pinning down the debt itself: the exact amount, the invoices or agreement behind it, and where the limitation clock stands. For older debts we would check whether the period has already expired, because no deed can revive a dead claim. Then we would look at the repayment plan and interest to make sure they are specific and defensible, and at the default and acceleration clause to make sure a missed payment gives you a clean right to the full balance.
If the debtor's position is shaky, we would push for a director's guarantee or a registered security interest before signing, and we would make sure the PPSR registration details are right. On execution we would insist on proper section 127 signing for companies, witness requirements for individuals, and electronic signing where the parties are remote. Finally, we would make sure the deed does not contradict your terms of trade or any earlier agreement, because a deed that fights your own documents creates the very disputes it was meant to prevent.
If you are the debtor, we would take the opposite line. We would not try to qualify the acknowledgment, but we would make sure the amount is right, the instalments are achievable, the interest is capped and the default triggers are fair before anyone signs.
Why the debt schedule decides whether the deed works
Every clause in this article earns its place, but the acknowledgment clause is the one that decides whether the deed does its job. A deed that says the debtor "acknowledges amounts owing" without fixing the figure, the invoices and the due date is a piece of paper that invites argument. A deed that pins the debt down to a specific amount with a specific basis, signed while the limitation period is still running, is a document a court can enforce on its face. Everything else, the interest, the acceleration, the security, builds on that foundation, and it all collapses if the foundation is vague.
In short: name the parties precisely, state the debt exactly, set a workable repayment plan with defensible interest, define default and acceleration, add costs protection, and consider security or a guarantee where the risk is real. Execute the deed correctly under section 127 for companies, with witnesses for individuals, and check the limitation position before you sign. A deed of acknowledgement of debt is a simple document with strict requirements. Get the clauses and the formalities right and it gives you a clean enforcement path. Get them wrong and you are back to chasing a promise.