How the ATO Treats Cryptocurrency
The starting point trips up more crypto investors than any other rule: the Australian Taxation Office does not treat bitcoin, ether or any other digital token as money or foreign currency. Crypto is a CGT asset, in the same legal bucket as shares or an investment property. That single classification drives everything else. Because crypto is an asset, every time you dispose of it you crystallise a capital gain or loss that belongs in your tax return — whether or not a single Australian dollar ever touched your bank account.
"Disposal" is far broader than most people assume. Under ATO rules, a CGT event occurs when you:
- Sell crypto for Australian dollars or any other fiat currency
- Swap one cryptocurrency for another (BTC → ETH is a disposal of your BTC)
- Spend crypto on goods or services — buying a laptop with bitcoin is a sale of that bitcoin at its market value
- Gift crypto to another person (the market value at the date of the gift is your deemed proceeds)
- Convert crypto into a stablecoin — USDT and USDC are still crypto assets, so this is a taxable swap too
What does not trigger CGT: buying crypto with dollars and holding it, or transferring coins between wallets you own (though transfer fees paid in crypto can themselves be small disposals). Unrealised gains sitting on an exchange are not taxed — yet.
Calculating a Crypto Capital Gain
The formula is the same as for any CGT asset: capital proceeds minus cost base. Your cost base is the AUD value of what you paid at acquisition, plus incidental costs such as brokerage and exchange fees. Your proceeds are the AUD value of what you received on disposal. For a crypto-to-crypto swap, the proceeds are the AUD market value of the coins you received at the moment of the trade — which is why accurate timestamped pricing matters so much.
Worked Example: A BTC → ETH Swap
Say you bought 0.5 BTC in May 2024 for $32,000 including fees. In November 2025 — 18 months later — you swap the entire 0.5 BTC for 10 ETH at a time when 0.5 BTC is worth $61,000. You never cash out to dollars. Is there tax to pay? Yes:
| Step | Amount |
|---|---|
| Capital proceeds (AUD value of ETH received) | $61,000 |
| Cost base of the 0.5 BTC | $32,000 |
| Gross capital gain | $29,000 |
| 50% discount (held more than 12 months) | −$14,500 |
| Net capital gain added to taxable income | $14,500 |
That $14,500 is added to your other income for the year and taxed at your marginal rate — you can see the dollar impact with our Income Tax Calculator. The 10 ETH you received starts a fresh CGT life with a cost base of $61,000 and a new 12-month clock. Sell or swap it within a year and any further gain gets no discount.
The 50% CGT Discount
Individuals (and trusts) who hold a crypto asset for more than 12 months before disposal can halve the assessable gain. This is the single biggest tax lever available to long-term holders, and it applies to crypto exactly as it does to shares — our guide to CGT on shares in Australia covers the same mechanics in a share context. Companies do not get the discount, and remember that every swap restarts the clock for the newly acquired asset. If you are approaching the 12-month mark on a large position, the timing of a disposal can change your tax bill by thousands of dollars.
Staking Rewards, Airdrops and DeFi
Not everything in crypto is a capital gain. Staking rewards and most airdrops are ordinary income, taxed at their AUD market value on the day you receive them — the same way interest or a dividend is taxed. That receipt value then becomes the cost base of the new tokens. When you later sell them, you calculate a separate capital gain or loss against that cost base. So a staker is taxed twice, in a legitimate sense: once as income on receipt, once under CGT on eventual disposal of any growth since receipt.
DeFi is genuinely murkier, and it is worth being honest about that. The ATO's published view is that many DeFi interactions — wrapping tokens, providing liquidity in exchange for an LP token, some lending arrangements where beneficial ownership changes — can each be CGT events. That position surprises many users, and aspects of it remain contested and are still evolving. There is no clean legislative answer yet for every protocol design. If you are active in DeFi with meaningful sums, treat conservative reporting as the default and get advice from a registered tax agent who works with crypto clients rather than relying on forum consensus.
The Personal Use Asset Exemption Is Narrower Than You Think
Crypto can be exempt from CGT as a "personal use asset" if it cost less than $10,000 and was acquired and used mainly to buy things for personal consumption — for example, buying $200 of crypto specifically to purchase a gift card that afternoon. Both limbs matter. The longer crypto is held, and the more its price movement figures in your decisions, the more it looks like an investment. Coins bought and held for months in the hope of a gain are investments regardless of the amount involved, so the exemption almost never applies to ordinary investors.
Common Myths That Trigger ATO Letters
- "I haven't cashed out, so there's no tax." False. Swaps, spends and gifts are all disposals. You can owe real tax having never converted to dollars.
- "It's under $10k, so it's a personal use asset." False. The dollar threshold alone is not enough — the crypto must genuinely have been acquired for personal purchases, not held as an investment.
- "The ATO can't see my exchange account." False. Under its data-matching protocol, the ATO receives account and transaction data from Australian designated service providers (exchanges) going back years, and cross-references it against lodged returns. Hundreds of thousands of taxpayers receive crypto "nudge letters" reminding them to report.
- "Crypto losses reduce my salary tax." False. Capital losses only offset capital gains. They carry forward indefinitely, but they never come off your wages.
- "Moving coins to a hardware wallet is a taxable event." Also false — transfers between your own wallets are not disposals. Keep records proving both wallets are yours.
Losses: Use Them Properly
A capital loss arises when your proceeds are less than your cost base — including on swaps into coins that were themselves later worth less. Losses first offset capital gains in the same year (from crypto, shares or property), and any excess carries forward to future years with no time limit. You must actually dispose of the asset to claim the loss; a portfolio that is merely down is not deductible. Note that "wash sale" style disposals — selling purely to book a loss and immediately rebuying the same asset — can attract ATO attention under anti-avoidance rules.
Record Keeping: Non-Negotiable
For every single transaction you need the date and time, the AUD market value at that moment, what the transaction was (buy, sell, swap, spend, reward), the fees paid, and the wallet or exchange involved. An active trader can rack up thousands of CGT events in a year, and reconstructing AUD values years later is painful. Crypto tax software that syncs with exchanges via API and produces an ATO-ready CGT report is worth the modest annual cost for anyone beyond a handful of trades — several established tools serve the Australian market. Whichever tool you use, keep the underlying exchange CSV exports too; software output is only as good as the data fed into it, and records must be kept for at least five years after the relevant disposal.
Estimate Your Crypto CGT in Seconds
Enter your purchase price, sale value and holding period to see your estimated capital gains tax at your marginal rate.
Open the CGT Calculator →Frequently Asked Questions
Do I pay tax on cryptocurrency in Australia?
Yes. The ATO treats crypto as a CGT asset, not currency. Every disposal — sale, swap, spend or gift — is a CGT event, and staking or airdrop rewards are taxed as ordinary income when received. The 50% discount applies to assets held over 12 months.
Is crypto-to-crypto trading taxable in Australia?
Yes. Swapping one coin for another is a disposal of the first asset at its AUD market value at the time of the swap, even though no dollars change hands. The coin you receive starts with a cost base equal to that value.
How are staking rewards and airdrops taxed?
Generally as ordinary income at their AUD value on receipt. That value becomes the cost base of the tokens, and selling them later is a separate CGT event on any movement since receipt.
Can I use the personal use asset exemption?
Rarely. It requires the crypto to have cost under $10,000 and to have been acquired and used mainly for personal purchases within a short period. Crypto held as an investment does not qualify, whatever the amount.
What happens if I lose money on crypto?
Realised capital losses offset capital gains from any CGT asset in the same year, and unused losses carry forward indefinitely. They cannot be deducted against salary or other ordinary income.
Disclaimer: This guide is general information only and is not tax, legal or financial advice. Crypto tax outcomes depend on your individual circumstances, and ATO guidance — particularly on DeFi — continues to evolve. Consult a registered tax agent before acting.