Purchase Price Changed Before Settlement? When NSW Stamp Duty Must Be Reassessed

In NSW, a genuine change to the purchase price after exchange but before the property transfers can require the transfer duty assessment to be updated under section 31 of the Duties Act 1997.

Duty is calculated on the higher of the varied consideration or market value, using the rate applicable when the contract was first executed. The correct reassessment path depends on whether duty has already been assessed or paid.

A price renegotiation between exchange and settlement can appear straightforward. The buyer and seller agree on a new figure, the settlement statement is amended and the balance payable changes.

In a NSW conveyancing file, however, the transaction cannot always be corrected by changing the amount shown in the electronic settlement workspace. The purchase price may already have been used to calculate transfer duty, assess a first-home buyer concession, determine surcharge purchaser duty and establish the buyer’s available funds.

Where the consideration under the agreement has genuinely changed before the property is transferred, the duty position must be reviewed as a separate compliance task. Revenue NSW: Variations of contracts for the sale of land confirms that an agreement may need to be assessed or reassessed in accordance with the changed consideration.

That distinction is particularly important in Sydney, where relatively modest variations can affect duty, finance approvals, concession thresholds and the funds available for immediate renovation or remedial works after settlement.

The Duty Question Begins With What Legally Changed NSW transfer duty, commonly called stamp duty, is not calculated solely by looking at the final amount transferred to the vendor on settlement day.

Under the NSW transfer duty calculation rules , the dutiable value is generally the higher of:

The consideration paid or agreed to be paid for the property. The property’s unencumbered market value. A genuine amendment to the purchase price can therefore alter the consideration used for duty. An accounting adjustment for rates, water usage, rent, land tax or strata levies may not have the same effect because it can represent an apportionment of ownership expenses rather than a change to the price paid for the land.

The contract, variation document and commercial substance must be examined together. Renaming a price reduction as an allowance does not necessarily determine its duty treatment, just as a lower settlement balance does not automatically establish that the dutiable value has fallen.

Common Changes and Their Likely Duty Consequences Purchase price is formally increased

Duty issue: Additional duty may become payable on the higher varied consideration, subject to the market value test.

Operational response: Document the variation, update the assessment and confirm that sufficient funds are available before settlement.

Purchase price is formally reduced after a building or pest issue

Duty issue: A reassessment may reduce duty, although duty cannot fall below the amount calculated on the applicable market value.

Operational response: Retain the variation, inspection evidence, negotiations and any valuation material supporting the reduced amount.

Rates, water, rent or strata levies are apportioned

Duty issue: These are ordinarily settlement adjustments rather than automatic changes to the purchase price.

Operational response: Keep the adjustment calculations separate from the contractual consideration unless the agreement expressly changes the price.

A car space, storage lot or other dutiable property is added

Duty issue: Both the property being transferred and the consideration may have changed.

Operational response: Check the title details, valuation requirements, contract variation and duties assessment before updating settlement.

Part of the property is removed from the sale

Duty issue: The reduced consideration and revised property package may require reassessment.

Operational response: Confirm exactly which lots, interests, fixtures and rights remain within the transaction.

Buyer receives a defect credit without a formal price variation

Duty issue: The treatment depends on whether the amount is compensation, an adjustment or a substantive reduction in consideration.

Operational response: Obtain transaction-specific advice before assuming that transfer duty will decrease.

Off-the-plan upgrades are added

Duty issue: Upgrades, additional areas, car spaces or storage can alter the consideration and possibly the dutiable property.

Operational response: Review the developer variation, final schedule, valuation position and duty assessment before completion.

Section 31 Treats the Variation as a New Duty Event Section 31 of the Duties Act 1997 (NSW) deals with an alteration in the purchase price after an agreement has been entered into but before the property is transferred.

Where the consideration increases, the liability for additional duty arises when the parties agree to the increase. It is not postponed merely because settlement is still several weeks away.

Revenue NSW also states that the varied transaction is calculated using the duty rate applicable when the original contract was first executed. This prevents the applicable rate year from shifting simply because the parties amend the price during a later financial year.

The reassessment still uses the new dutiable amount. It is the applicable rate schedule, rather than the original purchase price, that remains connected to the original contract date.

Operational point: A contract signed in one financial year and varied in the next may require the new consideration to be assessed using the duty rates linked to the original execution date. The settlement date alone does not determine the rate year.

The Correct Process Depends on the Existing Assessment Conveyancers cannot treat every variation in the same way. The required pathway changes depending on whether the original contract has been assessed and whether the assessed duty has already been paid.

Contract has not been assessed

Typical processing position: Assess the contract and transfer using the correctly varied dutiable amount. The variation document may also require fixed duty.

Settlement risk: Usually manageable if the variation is supplied before assessment begins.

Contract assessed, but duty not paid

Typical processing position: The original assessment may need to be cancelled and the transaction reprocessed using the correct consideration.

Settlement risk: Delays can occur if the old assessment remains connected to the electronic workspace.

Duty paid and purchase price increased

Typical processing position: The contract and variation may need to be lodged through eDuties for a section 31 reassessment and additional duty.

Settlement risk: Settlement funds may be insufficient unless the additional duty is calculated and funded early.

Duty paid and purchase price reduced

Typical processing position: Revenue NSW guidance provides for settlement on the reduced amount, followed by a reassessment application after settlement in the relevant circumstances.

Settlement risk: The buyer should not assume that a refund will be available immediately or that the entire price reduction will reduce duty.

A variation agreement entered into after exchange and before transfer may itself attract fixed duty of $100, plus $20 for each duplicate, under the Revenue NSW process. This fixed amount is separate from any additional ad valorem duty arising from the altered purchase price.

Where an urgent reassessment is required for an approaching settlement, Revenue NSW permits an urgency request to be made with the relevant eDuties lodgement. That does not remove the need for complete evidence or guarantee that a last-minute variation will be resolved without affecting settlement.

A Lower Contract Price Does Not Guarantee Lower Duty The market value test is the main reason a negotiated price reduction may not produce the duty saving expected by the buyer.

Consider a Sydney house originally contracted for $1.40 million. A serious drainage defect is identified, and the parties formally reduce the price to $1.36 million. Evidence available to Revenue NSW nevertheless supports a market value of $1.39 million in its existing condition.

In that situation, duty may be calculated on $1.39 million because it is higher than the varied consideration of $1.36 million. The buyer receives the commercial benefit of the negotiated reduction, but the transfer duty outcome is controlled by the dutiable value test.

Revenue NSW may require formal evidence of value where:

The parties are related or associated. The transaction is not conducted at arm’s length. There is non-monetary consideration. There is no selling agent. Fractional interests are involved. The consideration may not adequately reflect the property’s value. A valuation should address the property in its actual condition at the relevant date. A renovation quote or building report can explain why the parties renegotiated, but it may not substitute for market value evidence where Revenue NSW requires a qualified valuation.

Price Changes Can Move First-Home Buyers Across a Threshold The reassessment issue becomes more consequential when the buyer has claimed the First Home Buyers Assistance Scheme.

Under the current NSW First Home Buyers Assistance Scheme , eligible buyers of new or existing homes can receive:

A full transfer duty exemption where the value is $800,000 or less. A concessional rate where the value is above $800,000 and below $1 million. For eligible vacant land purchases, the full exemption threshold is $350,000, with a concession available above $350,000 and below $450,000.

A contract that increases from $795,000 to $815,000 may therefore move an eligible first-home buyer from a full exemption into the concessional range. An increase to $1 million or more may remove the property from the scheme’s price range altogether, even though the buyer’s citizenship, ownership history and occupancy intentions have not changed.

A reduction can have the opposite effect, but the market value floor remains relevant. Reducing the written consideration below $800,000 does not establish eligibility where the property’s dutiable value remains above that threshold.

Surcharge Purchaser Duty Must Also Be Rechecked Where a purchaser is a foreign person for NSW duty purposes, surcharge purchaser duty is calculated on the dutiable value in addition to ordinary transfer duty.

Revenue NSW states that the current surcharge purchaser duty rate is 9 per cent. A change in dutiable value can therefore have a larger cash impact for an affected buyer than the change in ordinary transfer duty alone.

Purchasers with overseas citizenship, trust structures, foreign beneficiaries or residency questions should not treat the purchase price variation as an isolated calculation. Elyment’s analysis of foreign buyer and overseas beneficiary checks in NSW property transactions explains why purchaser status should be resolved before the duty and settlement figures are finalised.

Not Every Defect Payment Is a Purchase Price Reduction Post-exchange building issues frequently create confusion because the parties may use several different mechanisms to reach a commercial outcome.

The vendor might:

Formally reduce the purchase price. Agree to complete specified repairs before settlement. Provide an adjustment or credit at settlement. Retain money pending completion of work. Pay compensation under a separate agreement. Remove an item or part of the property from the transaction. These arrangements are not interchangeable. They can create different contractual, valuation, lender and duty consequences.

For example, a $20,000 credit towards waterproofing work may reduce the cash required at settlement, but the duty outcome depends on whether the credit changes the consideration for the land. A formal reduction in the purchase price must be reflected consistently across the contract variation, transfer, assessment and settlement records.

The safest sequence is to decide the legal form of the resolution before the settlement figures are circulated. Drafting the paperwork after the financial adjustment has already been entered into the workspace increases the risk of inconsistent records.

The Settlement Workspace Is Not the Duty Assessment Electronic settlement has made the movement of money and registration of title more efficient, but it has not merged every legal and revenue process into a single record.

A conveyancer may need to coordinate several connected systems and stakeholders:

Obtain written confirmation of the negotiated variation. Prepare or review the deed or agreement recording the change. Confirm the revised consideration and property description. Identify whether the original duty assessment has been processed or paid. Cancel, reprocess or lodge a reassessment through the appropriate channel. Update the electronic settlement workspace. Provide revised figures to the buyer, seller and lender. Confirm that the buyer’s available funds cover the revised balance and duty. Retain the variation, valuation and supporting evidence with the matter file. Revenue NSW specifically warns that changing consideration details cannot always be handled as a simple rectification of an existing Electronic Duties Returns assessment.

Depending on the stage reached, the original assessment may have to be cancelled and processed again, or the transaction may need to be lodged for reassessment through eDuties.

The Lender Must See the Same Transaction as Revenue NSW A purchase price variation can affect more than the buyer’s duty liability. It may change the lender’s loan-to-value calculation, required contribution, mortgage documents, valuation instructions and authority to release funds.

A reduced purchase price does not always mean the buyer can simply contribute less. The lender may revise the loan amount, reconsider incentives or require evidence explaining the variation. An increased price may require the buyer to contribute additional funds if the approved loan does not increase with it.

Where the change is identified shortly before settlement, the conveyancer, broker, lender, selling agent and other side’s representative may all be working with different figures.

The transaction should not proceed until the contract, duty assessment, lender instructions and electronic workspace tell the same financial story.

Buyers facing a shortened timetable can review Elyment’s residential conveyancing and settlement coordination pathway before the variation reaches the final settlement stage.

Renovation Budgets Are Often the First Casualty In Sydney purchases, the buyer may already have allocated the remaining cash to flooring removal, painting, kitchen work, strata approvals or occupation costs.

An unexpected duty increase can reduce the amount available for immediate works. Conversely, an assumed duty refund may not arrive before renovation invoices become payable.

The property and renovation budgets should therefore remain separate until the revised transaction has been assessed. Buyers should avoid committing every apparent saving from a price reduction before confirming:

The final dutiable value. The amended transfer duty. Any surcharge purchaser duty. The lender’s revised contribution. The timing of any reassessment or refund. The actual cash remaining after settlement. This is particularly important where building defects caused the price reduction. The negotiated allowance may need to fund the defect itself, rather than representing surplus renovation capital.

Three Situations That Require Different Responses 1. Building Inspection Produces a Genuine Price Reduction A building report identifies structural movement. The vendor agrees to reduce the contract price and the parties execute a variation before settlement.

The reduced consideration should be reviewed for reassessment, but market value evidence may still determine the dutiable value. The lender should also receive the variation and any updated valuation material.

2. The Buyer Adds an Off-the-Plan Storage Lot The developer agrees to include an additional storage lot for an extra payment. This is not merely a change to a settlement adjustment. The property package and consideration have changed.

The contract variation, title references, duty assessment, lender security and settlement workspace should all be reviewed before completion.

3. The Parties Agree on Ordinary Rates Adjustments Council rates, water charges and strata levies are apportioned between the parties under the contract. The net balance payable changes, but the purchase price remains unchanged.

This will generally be treated as settlement accounting rather than an automatic section 31 price variation. The adjustment calculation should remain clearly distinguishable from the contractual consideration.

A Pre-Settlement Control List for NSW Buyers Before authorising settlement following a price change, the buyer’s representative should be able to answer each of the following:

Was the purchase price legally varied or was there only a settlement adjustment? On what date did the parties agree to the variation? Has the variation been signed by the required parties? Does the transfer show the correct varied consideration? Has the property or lot composition also changed? Has duty already been assessed? Has the assessed duty already been paid? Is an EDR cancellation, new assessment or eDuties reassessment required? Does the market value exceed the varied price? Is a qualified valuation required? Does the change affect a first-home buyer exemption or concession? Does surcharge purchaser duty need to be recalculated? Has the lender approved the revised transaction? Do the electronic workspace and settlement statement match the variation? Are additional duty and settlement funds cleared and available? Buyers should also understand the separate timing issue explained in Elyment’s guide to NSW transfer duty deadlines before settlement .

A longer settlement period does not necessarily postpone the original duty deadline, and a later variation can add another assessment step.

The Best Time to Control the Risk Is Before Exchange Not every post-exchange variation can be predicted, particularly where a later inspection uncovers a defect. The contract can still establish a clearer process for price adjustments, compensation, inclusions, access, repairs and evidence.

Auction buyers have less flexibility after the hammer falls, making pre-auction review particularly important. Elyment’s analysis of terms to negotiate before bidding at a NSW auction examines why financial and settlement conditions should be resolved before the buyer becomes unconditionally bound.

A clear variation process does not eliminate duty reassessment. It does make it easier to identify what changed, why it changed and which transaction records must be updated.

The Operational Conclusion A changed settlement balance is not automatically a changed purchase price, and a changed purchase price is not merely a new number for the settlement statement.

In NSW, a genuine alteration in consideration before transfer can activate section 31 of the Duties Act 1997. The transaction may need to be reassessed on the varied consideration or market value, while retaining the duty rate linked to the original contract date.

The practical outcome depends on timing. A variation discovered before duty is assessed can usually be incorporated into the original assessment. A variation after assessment or payment may require cancellation, reprocessing or a formal eDuties reassessment.

The most reliable approach is to align the variation document, market value evidence, transfer duty assessment, lender approval, settlement statement and electronic workspace before settlement authority is released.

Confirm the Reassessment Pathway Before the Revised Settlement Figures Are Released VARIATION • DUTY • FUNDS • SETTLEMENT

Review the contract variation, dutiable value, market evidence, first-home buyer position, surcharge exposure, lender instructions and settlement workflow before authorising completion.

Request a Property and Settlement Review

Frequently Asked Questions Does NSW Stamp Duty Automatically Update When the Purchase Price Changes? No. The appropriate assessment, cancellation or reassessment process depends on whether the original transaction has already been assessed or paid. Updating the settlement workspace alone may not update the Revenue NSW assessment.

When Does Additional Duty Become Payable After a Price Increase? Under Revenue NSW guidance, the liability for additional duty arises on the date the parties agree to increase the consideration, provided the change occurs before the property is transferred.

Will a Lower Purchase Price Always Reduce Transfer Duty? No. Transfer duty is calculated on the higher of the varied consideration or the property’s market value. A lower contract price may not reduce duty where market value remains higher.

Are Council Rates and Strata Adjustments Included in the Purchase Price? Ordinary settlement apportionments are generally treated separately from the purchase price. The contract and substance of the adjustment should still be reviewed before determining whether consideration has changed.

Can a Price Increase Affect a First-Home Buyer Concession? Yes. A higher dutiable value can move the property from a full exemption into the concessional range or above the maximum property value allowed under the scheme.

Can Settlement Proceed While a Reduction Is Being Reassessed? Revenue NSW provides a pathway in certain paid-duty reduction scenarios where settlement occurs on the reduced amount and the reassessment is lodged after settlement. The transaction-specific process should be confirmed before completion.

General Information Notice This article provides general NSW property transaction information and does not constitute legal, taxation, financial or valuation advice. Duty outcomes depend on the contract, variation, purchaser circumstances, property value and Revenue NSW assessment. Obtain advice for the specific transaction before settlement.

Sources and References Revenue NSW: Variations of Contracts for the Sale of Land Revenue NSW: Calculate Transfer Duty NSW Legislation: Duties Act 1997 NSW Government: First Home Buyers Assistance Scheme Elyment: Foreign Buyer and Overseas Beneficiary Checks in NSW Property Transactions Elyment: Residential Conveyancing and Settlement Coordination Elyment: NSW Transfer Duty Deadlines Before Settlement Elyment: Terms to Negotiate Before Bidding at a NSW Auction