Understanding the Cooling-Off Period in NSW Property Transactions
If you are buying residential property in NSW by private treaty, you generally have a 5 business day cooling-off period after contracts are exchanged. This gives you time to arrange finance, obtain building and pest reports, and have a solicitor review the contract. If you change your mind and rescind within that period, you forfeit 0.25% of the purchase price to the seller. Off-the-plan purchases have a longer 10 business day cooling-off period. There is no cooling-off period for properties bought at auction, contracts made the same day as a passed-in auction, contracts formed by exercising an option, or where a valid section 66W certificate has been given to the seller waiving the right. Getting advice before you exchange contracts is almost always safer than relying on the cooling-off period afterwards.
Jurisdiction
This article applies to the sale and purchase of residential property in New South Wales and is based on the Conveyancing Act 1919 (NSW), Part 4, Division 8 (sections 66Q–66Y), as at the date of last review below. Cooling-off rules differ between Australian states and territories, and this article does not deal with commercial, industrial or rural land, or property transactions outside NSW.
Key Terms Explained
Contract of sale documents can be dense. Here are the terms used most often in relation to the cooling-off period, explained in plain English.
| Term | What it means |
| Exchange of contracts | The point at which the buyer and seller each sign a copy of the contract and swap them. This is usually when the sale becomes legally binding and the deposit is paid. |
| Cooling-off period | A short window after exchange during which the buyer can change their mind and cancel (rescind) the contract, subject to a small financial penalty. |
| Rescind | To formally cancel the contract during the cooling-off period by giving written notice to the seller or the seller’s solicitor. |
| Section 66W certificate | A certificate signed by a solicitor, barrister or licensed conveyancer confirming the buyer has received advice and is waiving (giving up) the cooling-off period. |
| Off-the-plan contract | A contract to buy a lot (such as an apartment) that has not yet been created or completed, common in new unit developments. |
| Business day | Any day that is not a Saturday, Sunday, or a public holiday in NSW. |
| Option | A legal right, granted for a fee, to buy (or in some cases compel the sale of) a property at a later date on agreed terms. |
How the Cooling-Off Period Works, Step by Step
- Contracts are exchanged. The cooling-off period begins automatically on the day contracts are exchanged between buyer and seller (unless it is excluded or waived — see below). A deposit is usually paid at exchange, and its size is a matter for negotiation between the parties.
- The clock starts running. For a standard residential purchase, the period ends at 5:00pm on the fifth business day after exchange. For an off-the-plan contract, it ends at 5:00pm on the tenth business day.
- The buyer uses the time to complete due diligence. This typically includes finalising loan approval, arranging building and pest inspections, checking strata records (for units), and having a solicitor or licensed conveyancer review the contract.
- If the buyer wants to proceed, they do nothing further. Once the cooling-off period expires without the buyer rescinding, the contract becomes fully binding on both parties in the ordinary way.
- If the buyer wants to withdraw, written notice must be given before the deadline. The buyer (usually through their solicitor or conveyancer) serves a written rescission notice on the seller or the seller’s solicitor before 5:00pm on the final day. The seller is entitled to retain 0.25% of the purchase price, and the balance of the deposit is refunded.
Source: Conveyancing Act 1919 (NSW) ss 66S–66V; NSW Government, ‘Contracts and deposits when buying property in NSW’.
Cooling-Off Periods at a Glance
| Scenario | Cooling-off period | Can it be waived or shortened? |
| Standard private treaty sale | 5 business days from exchange, ending 5:00pm on the 5th business day | Yes — by a section 66W certificate, or by written agreement between the parties |
| Off-the-plan contract | 10 business days from exchange, ending 5:00pm on the 10th business day | Yes — by a section 66W certificate, or by written agreement, subject to any regulation limiting how far it can be shortened |
| Purchased at public auction | None | Not applicable — no statutory cooling-off period applies to a sale by auction |
| Contract exchanged same day property passed in at auction | None | Not applicable — treated the same as an auction sale |
| Contract formed by exercising an option | None (for options within the meaning of the Act, including put and call options) | Not applicable, subject to limited exceptions |
| A valid section 66W certificate is given to the seller before exchange | None | The buyer has already waived the right, on advice from a solicitor, barrister or licensed conveyancer |
Source: Conveyancing Act 1919 (NSW) ss 66S, 66T, 66Q; Conveyancing Legislation Amendment Act 2018 (NSW) Schedule 1[10]; Conveyancing and Real Property Amendment Act 2025 (NSW) (Act No 50 of 2025), assented 15 August 2025, which amended provisions relating to options in the Conveyancing Act 1919 (NSW), including section 66T(d).
Note: the cooling-off period only applies to ‘residential property’ as defined in section 66Q of the Act. Land larger than 2.5 hectares, and property that is not a place of residence, generally falls outside this definition and outside the statutory cooling-off scheme — this should always be checked with your solicitor before exchange.
Documents to Have Ready Before You Exchange
Having the following ready before exchange makes it easier to use the cooling-off period effectively, or to avoid needing it at all:
- The contract for sale and any special conditions or annexures
- Section 10.7 (planning) certificate and any other prescribed documents attached to the contract
- Title search and any relevant plans
- Strata records and by-laws (if buying a unit or townhouse)
- Building and pest inspection reports
- Loan pre-approval or finance approval documents
- Identification documents required for verification of identity
- Cleared funds for the deposit
What Not to Do
- Do not agree to waive the cooling-off period via a section 66W certificate without first getting advice on what it means — once a valid certificate is given to the seller, the right to cool off is gone.
- Do not assume the cooling-off period applies at auction — it generally does not.
- Do not leave contract review until the last day of the cooling-off period — issues may need time to resolve.
- Do not send a rescission notice informally by phone or text — written notice given the correct way is required.
- Do not assume the seller can also cancel during this period — the cooling-off right belongs to the buyer only.
Frequently Asked Questions
Does the cooling-off period apply if I buy at auction?
No. There is no statutory cooling-off period for a property bought at public auction, or where the contract is exchanged on the same day the property was passed in at auction (Conveyancing Act 1919 (NSW) s 66T).
What happens if I rescind during the cooling-off period?
You must give written notice of rescission to the seller (or their solicitor) before the deadline. The seller is entitled to retain 0.25% of the purchase price, and the rest of any deposit paid is refunded to you (s 66V).
Can the cooling-off period be extended?
Yes, by agreement — either through a provision in the contract or in writing from the seller before the period ends (s 66S(4)).
What is a section 66W certificate and why would a buyer use one?
It is a certificate that must comply with section 66W of the Conveyancing Act 1919 (NSW) and be signed by a solicitor, barrister or licensed conveyancer, confirming they have explained the contract and that the buyer is voluntarily waiving the cooling-off period. It is given to the seller (or the seller’s solicitor or agent) at or before exchange. Buyers sometimes use this to make an offer more attractive to a seller, but it removes an important protection and should only be arranged after receiving specific legal advice on that contract.
Does the cooling-off period apply to off-the-plan purchases?
Yes, but the period is longer — 10 business days rather than 5, reflecting the additional complexity of off-the-plan contracts (Conveyancing Legislation Amendment Act 2018 (NSW)).
Does the cooling-off period apply to rural or commercial property?
Generally, no. The cooling-off period under Division 8 applies only to ‘residential property’ as defined in s 66Q, which excludes land over 2.5 hectares and non-residential property. Whether a specific property qualifies should be confirmed with your solicitor.
What if the contract is formed by exercising an option?
There is generally no cooling-off period where the contract results from exercising an option, whether a call option (an option to purchase) or a put option (an option compelling a purchase), following the Conveyancing and Real Property Amendment Act 2025 (NSW), assented 15 August 2025, which clarified that s 66T(d) of the Conveyancing Act 1919 (NSW) applies to both types of option. This resolved earlier uncertainty about put options. Limited exceptions in s 66T(d) may still apply, so this should be checked against your specific option or contract.
Assisting Buyers Across Hornsby and the Upper North Shore
Caspian Legal assists buyers and sellers with residential conveyancing throughout Hornsby and the surrounding Upper North Shore, including Waitara, Asquith, Wahroonga, Normanhurst, Thornleigh, Pennant Hills, Berowra and Mount Colah. Whether you are exchanging contracts on a family home, a unit, or an off-the-plan purchase, our team can review your contract before exchange and, where needed, act quickly within the cooling-off period.
What Happens at Your First Consultation
At an initial consultation, we will review your draft or exchanged contract, explain your cooling-off rights (or confirm if none apply), identify anything that should be negotiated or amended, and outline the next steps and likely timeframe through to settlement. This gives you a clear, practical picture before you commit.
Speak with Caspian Legal Before You Exchange
A cooling-off period offers some protection, but it is not a substitute for having your contract reviewed before you sign. If you are buying or selling residential property in Hornsby or the Upper North Shore, contact Caspian Legal on 02 7264 3200 or visit caspianlegal.com.au to arrange a consultation. Early advice gives you the best chance of avoiding costly surprises.
This article is general information only and is not legal advice. It does not take into account your individual circumstances. You should obtain advice from a qualified solicitor or licensed conveyancer about your specific contract before exchanging or relying on any cooling-off right.
Sources
- Conveyancing Act 1919 (NSW) – Part 4, Division 8 (ss 66Q–66Y), via legislation.nsw.gov.au
- Conveyancing Act 1919 (NSW) s 66S – Cooling off period (AustLII)
- Conveyancing Act 1919 (NSW) s 66T – No cooling off period in certain cases (AustLII)
- Conveyancing Act 1919 (NSW) s 66Q – Meaning of ‘residential property’ (AustLII)
- Conveyancing Legislation Amendment Act 2018 (NSW), Schedule 1
- NSW Government – Contracts and deposits when buying property in NSW
- Conveyancing and Real Property Amendment Act 2025 (NSW) (Act No 50 of 2025), assented 15 August 2025
- NSW Registrar General, ‘Guidance for Practitioners – 2025 Changes to the Conveyancing Act and Real Property Act’ (secondary/official-guidance source, referenced for a plain-English summary of the 2025 amendments; primary source is the Act itself, listed above)
