Updated 25 October 2026
CM Law's Ultimate 50 List: Most Asked Sellers Questions about a Standard Contract for Sale in NSW #51: What is a ATO Clearance Certificates used for?
An ATO clearance certificate can make a substantial difference to the money available when a NSW property sale settles. It confirms the seller’s Australian tax residency for foreign resident capital gains withholding purposes, allowing the purchaser to proceed without that withholding for the covered seller. It belongs on the conveyancing checklist from the beginning of the sale.
For sellers, the immediate concern is cash flow: will the proceeds cover the mortgage discharge, selling expenses and any onward purchase? For purchasers, the concern is compliance: have the correct documents been supplied, or must part of the purchase price be paid to the Australian Taxation Office?
1. The current rules apply regardless of the property price
For contracts entered into on or after 1 January 2025, the ATO withholding rules impose a 15% rate and remove the former $750,000 property value threshold. The change matters to ordinary home sales, including lower priced properties. Earlier contracts require separate checking, even if settlement occurs later.
Australian tax resident sellers generally need to supply an ATO clearance certificate to prevent withholding on an ordinary property sale. A passport, Australian address or assurance that the property is the family home does not replace it. Tax residency differs from citizenship, and a potential main residence capital gains tax exemption does not remove this conveyancing requirement.
The amount is generally calculated on the gross purchase price, rather than the profit or the equity left after repaying a mortgage. Market value rules can apply to transactions that are not at arm’s length. Withholding is a collection mechanism credited against the seller’s tax position; it is not an automatic final tax of 15% on every sale.
2. Apply early and check the certificate dates
The ATO application is free. Apply when preparing to sell, allowing at least 28 days before settlement. Some applications require further information and can take longer. Waiting until the buyer is ready to settle creates avoidable pressure, particularly where identity details need correcting or a short settlement has been agreed.
The ATO’s clearance certificate guidance states that certificates generally last 12 months, provided residency does not change. Supply the certificate promptly and keep evidence of delivery. For a long contract, the purchaser may rely on a certificate supplied within its stated validity period where that period overlaps part of the transaction from contract to settlement. It need not always remain unexpired on settlement day.
An application receipt is not a clearance certificate. The conveyancing team should check the actual document and the transaction dates, particularly for off the plan contracts or delayed settlements. Any change in the seller’s tax residency also needs attention before relying on an existing certificate.
3. Match the certificate to the legal seller
Check the registered ownership before completing the application. Each Australian tax resident seller needs a separate certificate to obtain clearance; one spouse’s certificate does not cover both spouses. If a company owns the property, a director’s personal certificate is not the company’s clearance. For trust property, the application must correctly identify the legal owner, usually the trustee, with supporting information where required.
For example, on a $1 million sale with two equal owners, if only one supplies a valid certificate and no variation or exception applies to the other, withholding on the uncovered half is $75,000. It is not automatically $150,000 across both interests. Names, ownership shares and supporting identity documents therefore affect the settlement calculation.
Before exchange, identify who will apply, confirm the correct seller details and consider whether the proposed completion period allows enough time. Tell your solicitor about overseas residence, trusts, companies and any planned simultaneous purchase. These details should be checked while there is time to resolve them, rather than left until the final settlement statement.
Before settlement, the purchaser’s representative should confirm whether clearance, an approved variation or an applicable exception removes or changes withholding. Where payment is required, the ATO payment procedure includes a purchaser payment notification and payment reference number. The amount must be directed to the ATO at settlement and the seller should receive confirmation.
This payment comes from the purchase price; it is not an extra 15% added to the buyer’s agreed price. The seller cannot simply instruct the purchaser to disregard withholding. Purchasers who fail to meet their obligations can face penalties and interest. Both sides should reconcile the amount before approving the settlement funds.
Ask for a draft calculation showing the sale price, mortgage payout, withholding, adjustments and estimated net proceeds. If another purchase depends on that balance, tell both conveyancing teams about the connection. Confirm who is following up outstanding documents and when the funding position will be reviewed. A sale price alone does not show what will be available to spend.
5. A worked conveyancing example
The following example is hypothetical and does not describe a court decision or a CM Lawyers client. An Australian tax resident sole owner sells a unit for $700,000 under a contract made in 2026. The seller expects to repay a $620,000 mortgage and use the balance towards another purchase, but has not supplied a clearance certificate by settlement.
Assuming an ordinary market value transaction with no approved variation or applicable exception, withholding is $105,000. That leaves $595,000 before selling expenses and adjustments, which is $25,000 less than the mortgage payout. The issue is not whether the seller believes tax will ultimately be payable. The immediate problem is how settlement can be funded.
A missing certificate does not automatically invalidate the contract or prevent completion if withholding and funding can be properly arranged. However, the seller cannot assume the buyer must agree to an extension. Early checks allow the parties to assess the position before linked settlements, removal arrangements and finance commitments depend on the expected proceeds.
6. Foreign residents and variations need a different approach
A foreign tax resident cannot obtain an Australian resident clearance certificate. An ATO variation may instead reduce the amount withheld, potentially to nil, where supported by the circumstances. Examples include a loss on sale, an expected tax liability below the standard withholding, or certain situations involving secured debts and insufficient sale proceeds.
A variation requires assessment and approval; a seller’s estimate does not authorise a reduced payment. Apply early, allow processing time and give the approved notice to the purchaser before settlement. Particular transfers, including some deceased estate transmissions and relationship breakdown transfers, have separate rules. Those exceptions should not be assumed to cover an ordinary sale to a third party.
7. ATO clearance land tax and GST are separate checks
A Revenue NSW land tax clearance certificate addresses land tax charges affecting the property. The seller must provide a current certificate at least 14 days before settlement. The purchaser’s representative should check the property details and ensure any charge is cleared through the appropriate payment process. An ATO residency certificate does not satisfy that requirement.
GST withholding at settlement is another separate regime that can apply to sales of new residential premises and potential residential land. A valid ATO clearance certificate for foreign resident capital gains withholding does not remove GST withholding obligations. The contract, seller notices and settlement payments must address each applicable requirement separately.
8. Protect the settlement proceeds before committing them
If withholding occurs, the seller generally claims the credit through the tax return for the income year in which the sale contract was signed. Any refund depends on the assessed tax position and other tax debts. It should not be treated as money immediately available for the next purchase.
Keep the certificate or variation, evidence of delivery, contract and settlement payment records together. ATO clearance also does not resolve title defects, planning restrictions or other contract risks. For help coordinating these steps with mortgage discharge and settlement funding, contact the CM Lawyers conveyancing team. This article provides general information; advice should address your ownership structure, tax residency and transaction.
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