A Section 66W certificate is a legal document used when a buyer wants to buy a property without a cooling-off period. It is most common when buying at auction or when a seller wants a fast and certain sale. Once a Section 66W certificate is used, you are usually committed to the purchase as soon as contracts are exchanged.
If you are not sure what that means or why it matters, you are not alone. Many buyers hear the words “66W certificate” from an agent and feel pressured to move quickly. A Section 66W certificate removes your cooling-off rights, so it is important to understand how it works and what the risks are before you agree.
What is a Section 66W certificate in NSW?

A Section 66W certificate is a legal document used in NSW property transactions to waive the buyer’s cooling-off period rights. Once it is used, the buyer cannot rely on the usual cooling-off protections after exchange.
In simple terms, it confirms:
- The buyer understands they are giving up the cooling-off period.
- The buyer has received advice from their solicitor or conveyancer.
- The buyer wants to exchange contracts without any cooling-off rights.
What is the cooling-off period in NSW?
In NSW, many residential property purchases include a cooling-off period, which is a short period after exchange where the buyer can change their mind even if they have already signed the contract and the standard cooling-off period is usually 5 business days.
The cooling-off period exists so buyers can finalise important steps, such as:
- Confirming their finance.
- Reviewing the contract carefully.
- Booking inspections.
- Making sure they fully understand what they are buying.
How a Section 66W certificate works in NSW
This is one of the most important parts to understand. Many buyers agree to a 66W certificate without really understanding how the process works.
Step 1: The seller’s agent asks if you are exchanging with a cooling-off period
This is common in competitive property markets, especially when the seller wants more certainty and a faster exchange.
Step 2: Your conveyancer reviews the contract before exchange
Your conveyancer should review the Contract for Sale and check key items like:
- Title documents.
- Special conditions.
- Inclusions and exclusions.
- Deposit amount.
- Settlement period.
- Any unusual clauses that could create risk.
This step is essential because once you exchange for a 66W certificate, you may not have an easy way out.
Step 3: Your conveyancer gives advice and prepares the Section 66W certificate
A Section 66W certificate must be completed correctly. It confirms you have been advised about the legal effect of waiving the cooling-off period.
Your conveyancer will explain what you are giving up and what it means if you cannot proceed.
Step 4: You sign the contract and the Section 66W certificate
This is the point where you should ask questions if anything is unclear. It is completely normal to ask what a clause means, what happens if the bank delays your loan, what happens if you discover a serious issue with the property later, or what your options are if the settlement date needs to be changed. A good conveyancer will take the time to explain everything before you commit.
Step 5: Exchange of contracts occurs
Exchange happens when:
- Both buyer and seller have signed the contract.
- The buyer pays the deposit.
- The contract is dated and swapped.
The sale then becomes legally binding.
If a Section 66W certificate is provided, the cooling-off period does not apply.
Step 6: You pay the deposit
In NSW, a deposit is usually paid at exchange. Often, it is 10 percent of the purchase price, but it can sometimes be negotiated.
The deposit is usually held in the real estate agent’s trust account until settlement.
Step 7: The matter proceeds to settlement
After exchange, your conveyancer will help manage the steps leading to settlement, including:
- Coordinating with the seller’s conveyancer.
- Working with your lender.
- Preparing settlement figures.
- Booking settlement through the online platform if required.
- Finalising adjustments and paperwork.
When is a Section 66W certificate used?
A Section 66W certificate is used when the buyer wants an unconditional exchange.
This happens most often in these situations.
Buying at auction
In NSW, auction sales generally do not include a cooling-off period. That means:
- If you win the auction, you are committed immediately.
- You usually have to sign straight away.
- You pay the deposit right away.
This is why buyers should complete all of their due diligence, including obtaining legal advice, before auction day.
Private treaty sale where the buyer wants to exchange quickly
Sometimes buyers want to secure a property fast because they do not want to lose it to another buyer. In those cases, the buyer might agree to waive the cooling-off period to strengthen their offer.
The seller requests it to feel confident
Some sellers will only accept an offer if:
- There is no cooling off.
- The buyer is ready to proceed.
- The contract can be exchanged quickly.
This gives the seller peace of mind that the buyer cannot easily change their mind.
Section 66W vs Standard Cooling off in NSW
Here is the simple difference. Under standard rules in NSW, after you exchange contracts, you usually have a 5-business-day cooling-off period. During this time, you can cancel the contract, but you will be liable to forfeit the 0.25% deposit, along with any other money you have paid for due diligence. The cooling-off period gives buyers, especially first-home buyers, some breathing room to complete their due diligence.
If you exchange with a Section 66W certificate, there is no cooling-off period. The contract becomes unconditional straight away, meaning you are fully locked in and cannot cancel without serious consequences. This is why a Section 66W certificate should only be used when you feel confident and ready to proceed.
Section 66W vs Shortened Cooling-off Period
Some buyers think their only options are a full cooling-off period or no cooling off at all. But there is often a middle option, depending on what the seller agrees to. In some cases, a buyer may be able to negotiate a shorter cooling-off period, such as one or two business days. This can be a good compromise because it gives the seller more certainty while still giving the buyer a small window to confirm key details before the sale becomes fully unconditional.
When a Section 66W Certificate May Suit Your Situation
A 66W certificate is not always a bad idea. It can be reasonable when the buyer is prepared and confident.
You might consider it if:
- Your conveyancer has reviewed the contract.
- Your finance is well progressed.
- You have completed inspections or reports.
- You understand the risks and still want to proceed.
However, it can be risky if:
- Your loan approval is uncertain.
- You have not done inspections or a strata report.
- There are renovations, and you are unsure about approvals.
- You feel rushed or pressured to exchange.
What You Should Check Before Signing a Section 66W Certificate
This checklist is one of the safest ways to decide if you are ready to waive the cooling-off period.
- Has your conveyancer reviewed the contract fully?
Before signing anything, your conveyancer should check and explain:
- The title documents.
- The inclusions and exclusions.
- The settlement date.
- The deposit amount and timing.
- Special conditions.
- Anything unusual or risky.
- Are you comfortable with the deposit and the risk of losing it?
In NSW, your deposit is a serious commitment. If the purchase does not go ahead, the seller may have rights under the contract and you may lose money.
- Is your financial position strong enough?
Ideally, you want clarity on your borrowing capacity, the risk of a low bank valuation, how long loan approval may take and any conditions your lender may impose, because if your finance is uncertain, signing a Section 66W certificate increases your risk of potentially losing your deposit.
- Have you done the right inspections and reports?
Depending on the property type, this may include a building inspection, a pest inspection, or a strata report and it can help you avoid unwanted surprises after exchange.
- Do you understand the property’s title, access, and restrictions?
Your conveyancer can help explain easements, restrictions on use, access rights and shared driveway or common property arrangements, as these details can affect what you can do with the property after settlement.
Conclusion and next steps
A Section 66W certificate in NSW can be helpful when you are ready to proceed. This is especially common when buying at auction or when a seller wants a fast and certain exchange. However, it is important to remember that a Section 66W certificate removes your cooling-off protection. It also makes the contract unconditional straight away. This means you could risk losing your deposit or face serious consequences if you cannot settle. Before you agree to sign one, make sure the contract has been reviewed. You should also feel confident that your financial position is strong. It is also important to complete any inspections or reports you need. Most importantly, you should feel sure you understand what you are committing to.
A Section 66W certificate can be a helpful tool, but it can also carry serious risk if you are not fully prepared. If you are buying property in NSW and need your contract reviewed before exchange, contact Strictly Conveyancing. We will explain everything clearly and help you understand your options before you commit.