Losing crypto to a scam is a distinct scenario from simply losing money on a bad trade, and the tax treatment reflects that difference. Where a genuine scam, rather than an ordinary market loss, has resulted in crypto being taken or rendered worthless, Australian tax law can, in the right circumstances, treat that as a CGT event allowing a capital loss to be claimed. Getting this right depends heavily on evidence, and on understanding exactly what kind of scam occurred, since the details shape both whether a claim is available and how strong it is.
As of 1 July 2027, CGT rules in Australia are set to change. Please visit this page for the revised tax rules.
The starting point is understanding how a capital loss is treated in Australia generally, since a scam-related loss is assessed within that same broader CGT framework rather than as some entirely separate category. What distinguishes a genuine, claimable scam loss is evidence that crypto was taken through deception or fraud, rather than simply lost through a legitimate investment that performed poorly. A fake investment platform that disappeared with deposited funds, a fraudulent presale that never delivered a token, and a fake support agent who convinced someone to send funds directly are all examples of scams that can potentially support a capital loss claim, distinct from legitimate presales or projects that genuinely just failed commercially.
Understanding the common patterns behind fake influencer scams, honeypot scams and broader Ponzi or pyramid structures is useful both to recognise a scam before it happens and, if one already has, to correctly categorise exactly what occurred when building a loss claim afterwards.
Because a scam-related claim depends on establishing genuine deception rather than an ordinary market outcome, documentation is essential. Filing a report through the process covered in how to report a crypto scam creates an official, timestamped record independent of whether any funds are ever recovered, and it is one of the strongest pieces of supporting evidence available. Screenshots of the platform or communication involved, transaction records showing funds leaving your control, and a clear personal account of the timeline all strengthen the position.
Where any recovery is realistically possible, pursuing it through the guidance in recovering from a crypto scam matters not only for the obvious reason of potentially getting funds back, but because a recovered amount changes the actual loss figure that can legitimately be claimed. Understanding how to avoid crypto scams more broadly is worthwhile background too, both as prevention and as a reference point for identifying exactly which red flags were present in a specific case.
The loss is generally calculated using the same underlying logic as any other disposal under capital gains tax rules: the original cost base of the crypto, using a consistent cost base method, against what, if anything, was recovered. If the scam resulted in transaction records being difficult to reconstruct, particularly for a scam that spanned an extended period or multiple deposits, the broader guidance on dealing with lost transaction history is directly relevant alongside this specific scam scenario.
The resulting loss is reported through the same process covered in how to report crypto losses on an Australian tax return and how to declare cryptocurrency generally, and can be used to offset capital gains elsewhere or carried forward, consistent with standard tax loss harvesting principles. Given how seriously scam-related losses can be scrutinised, treating the claim with the same rigour as any other significant, evidence-dependent tax position, similar to a stolen crypto claim, is the right approach rather than treating it as an informal footnote.
Crypto lost to a genuine scam can potentially be claimed as a capital loss, distinct from an ordinary loss on a legitimate but poorly performing investment. What matters is evidence of deception, not simply a disappointing outcome. Filing an official scam report and documenting the timeline strengthens the eventual claim considerably. Any recovered funds reduce the actual loss that can be claimed, so pursuing realistic recovery options matters before finalising a position.
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Losing crypto to a scam is a distinct scenario from simply losing money on a bad trade, and the tax treatment reflects that difference. Where a genuine scam, rather than an ordinary market loss, has resulted in crypto being taken or rendered worthless, Australian tax law can, in the right circumstances, treat that as a CGT event allowing a capital loss to be claimed. Getting this right depends heavily on evidence, and on understanding exactly what kind of scam occurred, since the details shape both whether a claim is available and how strong it is.
The starting point is understanding how a capital loss is treated in Australia generally, since a scam-related loss is assessed within that same broader CGT framework rather than as some entirely separate category. What distinguishes a genuine, claimable scam loss is evidence that crypto was taken through deception or fraud, rather than simply lost through a legitimate investment that performed poorly. A fake investment platform that disappeared with deposited funds, a fraudulent presale that never delivered a token, and a fake support agent who convinced someone to send funds directly are all examples of scams that can potentially support a capital loss claim, distinct from legitimate presales or projects that genuinely just failed commercially.
Because a scam-related claim depends on establishing genuine deception rather than an ordinary market outcome, documentation is essential. Filing a report through the process covered in how to report a crypto scam creates an official, timestamped record independent of whether any funds are ever recovered, and it is one of the strongest pieces of supporting evidence available. Screenshots of the platform or communication involved, transaction records showing funds leaving your control, and a clear personal account of the timeline all strengthen the position.
The loss is generally calculated using the same underlying logic as any other disposal under capital gains tax rules: the original cost base of the crypto, using a consistent cost base method, against what, if anything, was recovered. If the scam resulted in transaction records being difficult to reconstruct, particularly for a scam that spanned an extended period or multiple deposits, the broader guidance on dealing with lost transaction history is directly relevant alongside this specific scam scenario.
Crypto lost to a genuine scam can potentially be claimed as a capital loss, distinct from an ordinary loss on a legitimate but poorly performing investment. What matters is evidence of deception, not simply a disappointing outcome. Filing an official scam report and documenting the timeline strengthens the eventual claim considerably.
Crypto lost to a genuine scam can potentially support a capital loss claim, calculated on the original cost base of the crypto lost and reported through the capital gains section for the year the loss occurred. The claim depends on establishing genuine deception rather than an ordinary poor investment outcome, so supporting evidence matters: a police or ReportCyber reference, the transaction records, and correspondence with the scammer or platform.
The distinction Australian investors most often miss is between a scam and a bad investment. A token that simply fell in value is not a scam loss, and a legitimate but failed project is a different claim again. The loss also offsets capital gains only, not salary income, and carries forward until a gain arises. Recovering the funds themselves is rarely possible, so the tax treatment is usually the only remedy available.
The ATO requires you to keep detailed records for all crypto transactions, including dates, amounts in AUD, wallet addresses, and the purpose of each transaction. Good records are essential for accurately calculating your tax obligations.
WRITTEN & REVIEWED BY Chris Shepley
UPDATED: SEPTEMBER 2026