An ATO reassessment following a non-resident property sale is not a random event. It is almost always triggered by specific, identifiable signals: a mismatch between the residency status declared at settlement, the withholding amount remitted, and what appears in the tax return lodged. Non-residents selling Australian property face a fundamentally different CGT framework than Australian residents, one where the 50% CGT discount is no longer available and where Foreign Resident Capital Gains Withholding (FRCGW) applies from the first dollar of the sale price [5]. Understanding what prompts ATO scrutiny, and what a proper response looks like, is the difference between resolving the matter cleanly and facing compounding penalties.
TL;DR: Key Takeaways
- ATO reassessments after non-resident property sales are typically triggered by residency mismatches, withholding discrepancies, or incorrect CGT discount claims.
- Since 1 January 2025, the FRCGW rate increased to 15% with no threshold exemption, meaning all sales are now subject to withholding regardless of price [5].
- Non-residents are not entitled to the 50% CGT discount that Australian residents receive, a distinction many generalist accountants miss [6].
- The main residence exemption is now significantly restricted for foreign residents, with limited exceptions [1].
- An ATO review does not have to become a dispute; a structured, documented response prepared by a specialist tax agent can resolve most cases without penalty escalation.
What Makes Non-Resident CGT Different From Resident CGT?
Non-resident CGT is not simply resident CGT with a different rate applied. It is a structurally different regime with its own rules on discounts, withholding, and exemptions. For CGT purposes, selling property is classified as CGT event A1 under the ITAA 1997 [2]. The critical divergence from the resident framework is threefold:
- No 50% CGT discount: Australian residents who hold an asset for more than 12 months are entitled to a 50% discount on the capital gain. Non-residents are not entitled to this discount [6].
- Foreign Resident CGT Withholding (FRCGW): The purchaser is required to withhold 15% of the total sale price and remit it to the ATO. Since 1 January 2025, this applies regardless of the property’s sale price, the previous $750,000 threshold having been removed [5].
- Restricted main residence exemption: A property that was once a principal place of residence may now be fully subject to CGT if the seller is classified as a foreign resident at the time of sale [1].
These three differences compound one another. A seller who is a foreign resident at settlement, who once lived in the property, and whose accountant incorrectly applies the main residence exemption or the 50% discount, presents the ATO with multiple grounds for reassessment simultaneously.
What Specifically Triggers an ATO Review?
Building on the structural differences above, the harder question is what causes the ATO to act. Reassessments do not happen by accident. The ATO’s data-matching capability links property settlement data from state revenue offices, FRCGW remittances lodged by purchasers, and the income tax returns filed by sellers. Discrepancies between any two of these three data points are the most common trigger.
| Trigger | What the ATO Sees | Why It Flags |
|---|---|---|
| 50% CGT discount claimed as a non-resident | Reduced capital gain in the tax return against a non-resident TFN | Discount not available to foreign residents [6] |
| Main residence exemption applied incorrectly | Zero or reduced CGT declared; property identified as residential | Exemption is substantially restricted for foreign residents [1] |
| FRCGW withheld but CGT not lodged | 15% withholding remitted by purchaser; no matching return filed [5] | Withholding without a lodgment creates an automatic flag |
| Residency status misclassified at settlement | Clearance certificate obtained but seller was a foreign resident [3] | ATO can reassess residency status independently of the certificate |
| Cost base calculation errors | Understated cost base inflates the apparent gain | Common where renovation costs or borrowing costs are excluded [2] |
Does the Recent Overhaul of the Foreign Resident CGT Regime Change the Risk Profile?
Stepping back from transaction-level triggers, a broader legislative shift has materially changed what non-residents are exposed to. Australia’s foreign resident CGT regime has been subject to significant reform, with core changes proposed to apply to CGT events on or after 1 July 2025 [4]. The definition of “taxable Australian property” is being expanded, and the retrospective amendments to real property definitions mean that assets some sellers considered outside the regime may now fall within it [4].
Additionally, since the FRCGW rate increased to 15% with no lower threshold [5], the withholding amount is frequently larger than the actual CGT liability. This creates a refund entitlement, but only if a compliant return is lodged. Sellers who do not lodge forfeit that refund and remain exposed to interest and penalties on the underlying liability.
The reform trajectory is clear: the ATO is tightening, not loosening, its grip on non-resident property disposals. Sellers who transacted in the 2024-25 or 2025-26 financial years need to assess their position against the current rules, not the rules that applied two or three years ago.
How Should a Non-Resident Respond to an ATO CGT Review?
A related but distinct question from what triggers a review is how to respond effectively once one has been initiated. The worst outcome is responding without documentation or with a return that attempts to claim exemptions that are no longer available. The ATO’s review process has defined timeframes and formal response requirements. A structured response typically involves:
- Establishing the correct residency status at the date of the CGT event, using the ATO’s four-test framework (Resides Test, Domicile Test, 183-Day Test, Commonwealth Superannuation Test).
- Reconstructing the cost base accurately, including acquisition costs, stamp duty, agent fees, capital improvement costs, and borrowing costs attributable to the property [2].
- Applying the correct CGT discount, which for a foreign resident is nil, and ensuring no partial residence period discount has been incorrectly claimed [6].
- Reconciling the FRCGW amount remitted by the purchaser against the actual tax liability, and lodging an amended or original return to trigger any refund entitlement [5].
- Addressing any DTA (Double Tax Agreement) offset if tax has been paid in the country of residence on the same gain, which may reduce the net Australian liability.
ODIN Tax provides support for all five steps as part of its non-resident CGT compliance service. The team’s experience across 40+ countries means the DTA offset calculation is not a theoretical exercise but a regularly executed step for clients in Hong Kong, Singapore, the UAE, the UK, and elsewhere.
Frequently Asked Questions
Can a non-resident claim the main residence exemption on an Australian property sale?
The exemption is now severely restricted for foreign residents. Unless a limited life event exception applies (terminal illness, death, or divorce in specific circumstances), a foreign resident who sells a property that was once their home will generally be fully subject to CGT [1]. This is one of the most common errors in non-resident returns.
What is the current FRCGW rate and does a threshold apply?
Since 1 January 2025, the FRCGW rate is 15% of the total sale price. The previous threshold below which no withholding applied has been removed, meaning all sales are now subject to withholding if the seller is a foreign resident [5].
What happens if the FRCGW withheld is more than the actual CGT liability?
The excess is refundable, but only through lodging a compliant Australian tax return. Non-lodgment means forfeiting the refund and remaining exposed to penalties on any shortfall.
Is the 50% CGT discount available to non-residents?
No. The 50% CGT discount that applies to assets held for more than 12 months is not available to foreign residents. The full capital gain is assessable [6].
Can I get a clearance certificate even if I am a non-resident?
A clearance certificate is an ATO-issued document confirming the seller is not a foreign resident for FRCGW purposes. Obtaining one incorrectly when you are in fact a foreign resident does not protect you from reassessment; the ATO retains the ability to reassess residency status independently [3].
What if I have not lodged Australian tax returns for several years?
Overdue lodgments can typically be resolved through voluntary disclosure, which generally results in more favourable penalty treatment than waiting for the ATO to act. ODIN Tax regularly manages multi-year catch-up lodgments for non-residents, including years involving property disposals.
Does paying tax overseas on the same gain eliminate my Australian liability?
Not automatically. Where Australia has a Double Tax Agreement (DTA) with your country of residence, a Foreign Income Tax Offset (FITO) may reduce your net Australian liability. This requires a correctly prepared return and an understanding of how the specific DTA allocates taxing rights over real property gains.
About ODIN Tax
ODIN Tax is a Registered Australian Tax Agent and Australia’s specialist practice for Australian expats and non-residents, headquartered in Hong Kong and serving clients across 40+ countries. Led by Tax Director Pau Lam with over a decade of specialist expat tax experience, the team has prepared returns and resolved compliance issues for 10,000+ clients. For clients facing non-resident CGT reviews, ODIN Tax coordinates residency determination, cost base reconstruction, FRCGW reconciliation, and DTA offset calculations as part of a single, integrated compliance process. As part of the ODIN Group, ODIN Tax also works alongside the group’s mortgage broking arm, ensuring tax strategy and property financing are aligned from the outset rather than addressed in isolation.
Received an ATO Notice or Unsure About Your CGT Position?
If you have sold Australian property as a non-resident, or are planning to, and you are uncertain whether your CGT position has been calculated and lodged correctly, the ODIN Tax team can provide guidance on your position. Our team handles non-resident CGT compliance, ATO correspondence, and overdue lodgments for Australian expats across 40+ countries.
Get in touch with the team at www.odintax.com to book a consultation.
References
- Selling Property after becoming a Non-Resident (www.runwaywealth.com)
- Capital Gains Tax Considerations When Selling Your Residential Propert – TK Bookkeepers (tkbookkeepers.com)
- Updates to Australia’s non-resident capital gains tax regime – shifting… – Johnson Winter Slattery (jws.com.au)
- Australia’s proposed foreign-resident CGT reforms: What foreign energy investors need to know | Global law firm | Norton Rose Fulbright (www.nortonrosefulbright.com)
- Foreign Resident CGT Overhauled: Twenty Years in the … (www.henrywilliam.com.au)
- A Guide to Capital Gains Tax for Australian Expats (titanwealthinternational.com)
