For crypto holders: why a swap is still a CGT event, even without cash

A common misconception is worth setting straight. This piece is about crypto-to-crypto swaps — trades where one cryptocurrency is exchanged for another without any Australian dollars being received. This month's companion Accounting and Taxation article looks at another CGT mechanic that surprises investors: how depreciation claimed on a rental property reduces the cost base when the property is sold.

The misconception at the heart of this article runs like this: I bought Bitcoin for $30,000. I swapped it for Ethereum when Bitcoin was worth $50,000. I didn't take any Australian dollars off the exchange. There's no tax event until I actually cash out to AUD.

The conclusion feels intuitive. It is wrong. The swap itself is a Capital Gains Tax event, and the $20,000 gain is realised in the tax year of the swap — regardless of whether any AUD has ever moved.

The framework: crypto is a CGT asset

The Australian Taxation Office has been consistent on this since 2014, and its most recent guidance (updated 22 June 2026) reaffirms the position. Cryptocurrency is a Capital Gains Tax asset, not currency. This classification matters more than the terminology suggests, because it determines what happens when the asset changes hands.

When you hold a CGT asset, its cost base is established at acquisition. When you dispose of that asset — for any reason — a CGT event occurs. The gain or loss is the difference between the disposal proceeds (in AUD terms) and the cost base (also in AUD terms).

Nothing in this framework requires the disposal to be for cash. What matters is that you no longer own the asset.

What counts as a disposal

The ATO lists the following as disposals of a crypto asset, each of which triggers a CGT event:

• Selling a crypto asset for Australian or foreign currency

• Trading, exchanging, or swapping one crypto asset for another crypto asset

• Gifting a crypto asset — including to a family member

• Using a crypto asset to buy goods or services

• Converting a crypto asset to a stablecoin (yes, this counts) and back again (yes, this counts too)

Each of these is a disposal. Each triggers a CGT event on the asset given up. If a CGT event produces a gain, that gain is added to your assessable income for the year and taxed at your marginal rate — reduced by 50 per cent if you have held the asset for more than twelve months and are an Australian resident individual.

The specific misconception: crypto-to-crypto swaps

The swap is the disposal that catches the most holders. When you exchange Bitcoin for Ethereum on any exchange — centralised, decentralised, cross-chain, wrapped — you are simultaneously disposing of the Bitcoin and acquiring the Ethereum. The disposal of the Bitcoin is a CGT event.

The mechanics are straightforward once stated:

• The capital proceeds for the disposed Bitcoin equal the AUD market value of the Ethereum you receive at the time of the swap.

• The cost base of the disposed Bitcoin is what you paid for it in AUD terms (including transaction fees).

• The capital gain or loss is the difference.

The fact that no Australian dollar amount ever appeared in your bank account is irrelevant. The AUD figure is derived from the market value of the assets at the moment of the swap, using exchange rates from the platform on which the trade occurred.

A worked example

Consider an ATO-style example.

Katrina acquires 100 units of Coin A for $15,000 on 5 July 2025. Her cost base is therefore $150 per unit.

On 15 November 2025, Katrina swaps 20 of her Coin A for 100 units of Coin B on a digital asset exchange. At the moment of the swap, the exchange rate values the 100 Coin B at $6,000 in AUD terms.

Katrina has disposed of 20 Coin A. Her capital proceeds are $6,000 (the AUD value of what she received). Her cost base for the disposed 20 Coin A is $3,000 (20 × $150). Her capital gain is $3,000.

That $3,000 gain is reportable in Katrina's 2025–26 tax return. If Katrina had held the 20 Coin A for more than twelve months before the swap, she could apply the 50 per cent CGT discount and include $1,500 in her assessable income. Because she held it for less than twelve months — acquired in July, swapped in November — the full $3,000 is included.

No AUD has left Katrina's exchange account. No AUD has entered her bank. The tax event has occurred anyway.

Practical implications

Record-keeping is essential. Every crypto transaction — every swap, every purchase, every gift, every payment made in crypto — needs to be recorded at its AUD value at the time it occurred. Exchange records are the starting point but are rarely comprehensive across multiple platforms, wallets, and years. Crypto-specific tax software (Koinly, CoinTracker, CryptoTaxCalculator and similar) automates much of this by importing transaction histories across exchanges and wallets.

The ATO knows. Since 2019, the ATO has operated a crypto asset data-matching program that receives transaction and account information directly from designated Australian crypto service providers. The 2026–27 program has expanded to include more exchanges and DeFi platforms. Non-disclosure is not a viable strategy.

Losses can help. A crypto-to-crypto swap that produces a capital loss can be used to offset capital gains from other assets in the same tax year, or carried forward to future years. This is one reason why the record-keeping matters — a documented loss is a usable one.

The 2027 change. The federal government has proposed replacing the 50 per cent CGT discount with an inflation-indexed concession for crypto assets acquired on or after 1 July 2027. If the legislation passes as proposed, existing holdings would retain the current discount rules; new acquisitions would fall under the new regime. The proposal is not yet law.

The principle

Every disposal of a CGT asset is a CGT event. Cryptocurrency is a CGT asset. A swap is a disposal. From these three propositions, the tax treatment follows.

The disciplined approach is to understand the mechanics before the trade, not after. Cost and tax are the certainties of investment. The investor who assumes cash-out is the only trigger for tax often discovers, at lodgement time, that the year's swaps have created a taxable position they had not accounted for. The record-keeping is easier before the trades accumulate than after.

If you would like to review whether your crypto transactions have been reported correctly — or whether the CGT position on your current holdings needs attention before lodgement — we welcome the conversation.

Corinne Kirk
Partner, Accountant

1300 102 542 | 0405 106 401
corinne@egu.au

Sources

• Australian Taxation Office — Crypto asset transactions (updated 22 June 2026): https://www.ato.gov.au/individuals-and-families/investments-and-assets/crypto-asset-investments/transactions-acquiring-and-disposing-of-crypto-assets/crypto-asset-transactions

• Australian Taxation Office — Crypto to crypto exchange or swap: https://www.ato.gov.au/individuals-and-families/investments-and-assets/crypto-asset-investments/transactions-acquiring-and-disposing-of-crypto-assets/crypto-to-crypto-exchange-or-swap

• Australian Taxation Office — How to work out and report CGT on crypto: https://www.ato.gov.au/individuals-and-families/investments-and-assets/crypto-asset-investments/how-to-work-out-and-report-cgt-on-crypto

• Australian Taxation Office — Crypto asset data-matching program: https://www.ato.gov.au/about-ato/commitments-and-reporting/in-detail/privacy-and-information-gathering/how-we-use-data-matching/crypto-asset-data-matching-program

This is general advice. It does not take account of your objectives, financial situation, or needs, and is not a substitute for advice that does. Before acting on anything in it, consider whether it suits your circumstances, and consider the relevant Product Disclosure Statement.