Are mediation agreements legally binding in NSW?

The short answer: yes, if it is done properly.

A mediation agreement, usually called terms of settlement, is binding if it meets the ordinary requirements of a contract: the parties intended to be bound, the terms are certain, and there is consideration, meaning each side gives something. Signed terms of settlement at the end of a mediation are a contract, and a party who breaks them can be sued on them. So the deal you sign is real, not a preliminary understanding.

This is general information, not advice on your matter. Whether a particular agreement binds, and how to enforce it, depends on how it is drafted and what it covers. The safest agreements are written clearly, signed by everyone, and, where a court case is on foot, turned into consent orders. Vague or unsigned understandings are where problems start.

What makes a mediation agreement binding?

The agreement binds if it is a proper contract. That means the parties intended it to be legally binding, the terms are clear enough to be enforced, and each side gives something in return, such as one paying money and the other giving up a claim. Signed written terms of settlement at the end of a mediation almost always meet these requirements, which is why the document is drawn up and signed before anyone leaves the room.

The danger is a deal that is agreed in principle but not written down, or written too vaguely. If the terms are uncertain, or if the parties clearly meant to settle the details later, a court may find there was no binding agreement. This is why mediators insist on reducing the deal to signed terms on the day. A handshake and a genuine intention to be bound, captured in a clear signed document, is what makes the agreement stick.

What should terms of settlement contain?

Good terms of settlement spell out exactly who does what, and by when. For a money settlement, that is the amount, who pays it, the date or instalments, and what happens if a payment is missed. They should also say that the settlement resolves the dispute in full, so the matter cannot be reopened, and deal with costs, confidentiality, and, where a court case exists, how the proceedings are to be ended.

Precision protects everyone. Terms that say the defendant will pay a fair amount soon are a recipe for a fresh dispute. Terms that say the defendant will pay fifteen thousand dollars by the fifteenth of next month, failing which the whole judgment sum becomes payable, leave nothing to argue about. The time spent getting the wording right at the mediation is far less than the cost of fighting over a loose agreement later.

What are consent orders?

Where a court case is already on foot, the parties can ask the court to make their settlement into consent orders. These are orders of the court that reflect the agreed terms, made by consent rather than after a fight. The advantage is enforcement: a breach of a court order can be enforced directly through the court's powers, which is often quicker and stronger than suing on a contract.

Consent orders also formally end the proceedings, so the case is closed rather than left hanging. Not every mediated deal needs consent orders, and some terms, such as confidentiality clauses, sit better in a private agreement than in a public order. A common approach is to have both: consent orders for the enforceable money terms and a private deed for the confidential ones.

What happens if someone breaks the agreement?

If the agreement is a contract and one side breaks it, the other can sue to enforce it. Because the terms are usually clear and signed, that claim is often straightforward, and the breaching party has little room to argue. Where the settlement was made into consent orders, the innocent party can enforce the orders directly, using the court's enforcement tools, without starting a fresh case.

Well drafted terms often build in a consequence for breach, such as the full original claim becoming payable if an instalment is missed. That gives the paying party an incentive to keep to the deal and the receiving party a fast remedy if they do not. The lesson is that the strength of a mediated agreement depends on how it was written, which is why the drafting at the end of the mediation matters as much as the negotiation before it.

Can you get out of a mediation agreement?

Only in narrow circumstances. A signed settlement can be set aside on the same limited grounds as any contract, such as fraud, serious misrepresentation, duress, or a lack of capacity. Simple regret is not enough. A party who agreed to terms because, on reflection, they think they could have done better at a hearing cannot walk away; that is the point of a binding settlement.

This is why you should not sign terms you do not understand or accept. If you need advice before signing, ask for time, or make the agreement conditional on advice. Once you sign clear terms with the intention to be bound, you are bound, and the courts will hold you to the deal. Preparing properly, as our guide on preparing for mediation explains, is how you avoid signing something you regret.

Primary sources: mediated settlements are enforced as contracts under the general law, and mediation in NSW civil proceedings is provided for in Part 4 of the Civil Procedure Act 2005 (NSW), which also allows the court to make consent orders giving effect to a settlement. Community mediation agreements arise under the Community Justice Centres Act 1983 (NSW). NSW decisions on enforcing settlements are searchable on JADE.

Common questions

Are mediation agreements legally binding in NSW?

Yes, if properly made. Signed terms of settlement at the end of a mediation are a binding contract, provided the parties intended to be bound, the terms are certain, and each side gives something. A party who breaks them can be sued on them. The deal you sign is real, not a preliminary understanding.

What makes a mediation agreement enforceable?

It has to be a proper contract: the parties intended it to be legally binding, the terms are clear enough to enforce, and each side gives something in return. Signed written terms of settlement almost always meet these requirements. The danger is a deal agreed in principle but not written down, or written too vaguely to enforce.

What are consent orders?

Where a court case is on foot, the parties can ask the court to turn their settlement into consent orders, which are orders of the court made by agreement. The advantage is enforcement: a breach of a court order can be enforced directly through the court's powers, which is often quicker and stronger than suing on a contract, and it formally ends the proceedings.

What happens if someone breaks a mediation agreement?

The other party can sue to enforce it as a contract, and because the terms are usually clear and signed, that claim is often straightforward. Where the settlement was made into consent orders, the innocent party can enforce the orders directly through the court. Well drafted terms often make the full original claim payable if an instalment is missed.

Can you get out of a signed mediation agreement?

Only in narrow circumstances, such as fraud, serious misrepresentation, duress, or a lack of capacity, the same limited grounds as any contract. Simple regret is not enough. This is why you should not sign terms you do not understand or accept; ask for time or advice before signing if you need it.

To speak to a litigation lawyer, call Aaron Kernaghan on 0421 717 019.

This article is written by Aaron Kernaghan, Special Counsel at Good Legal Lawyers, as at 30 August 2026. It is general information and reflects the personal opinion of the author only. It is not legal advice, it is not a substitute for advice on your own matter, and it does not purport to be accurate or complete. The law changes and procedure varies from case to case. For advice on a specific matter, contact Aaron Kernaghan on 0421 717 019 or contact the firm.

More commentary by Aaron Kernaghan.

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