In Australia, crypto isn't treated as money — it's treated as property. That single fact drives almost everything about how it's taxed. Most people assume tax only applies when they cash out to Australian dollars. It doesn't. This guide explains why nearly every move you make with a crypto asset is a capital gains tax event, how the gain is worked out, the discounts that can reduce it, and the records the ATO now expects you to keep.
Crypto is a CGT asset, not currency
The Australian Taxation Office does not regard Bitcoin, Ethereum or other crypto assets as foreign currency. It treats them as property, and specifically as capital gains tax (CGT) assets. When you dispose of one, you make a capital gain or a capital loss, and any net gain is added to your taxable income for the year.
That's the same framework that applies to shares or an investment property — and it's why a one-off crypto trade can quietly create a tax bill even when no Australian dollars ever hit your bank account.
Every disposal is a CGT event — including crypto-to-crypto
This is the part that catches people out. A CGT event happens whenever you dispose of a crypto asset, and "dispose" is far broader than selling. According to the ATO, a disposal happens when you do any of the following:
- Sell a crypto asset for Australian dollars.
- Trade, exchange or swap one crypto asset for another — yes, swapping Bitcoin for Ethereum is a taxable event, even though you never touched cash.
- Convert a crypto asset to Australian or foreign (fiat) currency.
- Buy goods or services with a crypto asset.
- Gift a crypto asset to someone else.
The trap is the second one. Active traders can run hundreds of crypto-to-crypto swaps in a year thinking nothing is taxable until they cash out — when in fact each swap was a separate CGT event that needed to be valued and reported.
Working out the gain in Australian dollars
Because crypto is property, every gain has to be expressed in Australian dollars — even on a crypto-to-crypto trade where no dollars changed hands. The capital gain is, broadly, the AUD value of what you received on disposal, minus the cost base (what you paid to acquire the asset, plus certain costs like brokerage and transaction fees).
To convert values, the ATO uses Reserve Bank of Australia exchange rates, or any reasonable externally sourced rate where the RBA doesn't list a currency. You need the AUD value at the time of each transaction — both when you acquired the asset and when you disposed of it.
A quick worked example
Say you bought 1 unit of a crypto asset for $4,000 (including fees), held it, then later swapped the whole lot for a different token when your original holding was worth $10,000:
That $6,000 gain is taxable even though you didn't cash out to dollars — and the new token simply starts a fresh holding with a $10,000 cost base. If you'd held the original asset for more than 12 months, the 50% discount below could halve the taxable gain.
The 50% CGT discount — and the 2027 change
If you're an individual and you hold a crypto asset for more than 12 months before disposing of it, only half the capital gain is taxed — the 50% CGT discount. Hold for 12 months or less and the whole gain is taxable. That single threshold can make a large difference, so the holding period of each parcel matters.
Looking ahead, the 2026 federal budget announced that from 1 July 2027 the 50% discount is to be replaced by inflation-based cost-base indexation plus a minimum 30% tax on gains. For assets you already hold on that date, the gain is split: the part that built up before 1 July 2027 keeps the current discount, and only the part after is taxed under the new rules. It is an announced measure, not yet law, so the detail may change — our 50% CGT discount guide covers it in full.
Capital losses and the personal-use exception
Not every disposal is a gain. If you dispose of crypto for less than its cost base, you make a capital loss. You can't deduct a capital loss against your salary, but you can use it to offset capital gains in the same year — or carry it forward to offset gains in future years. For people who traded heavily in a falling market, capturing those losses correctly can be valuable.
There's also a narrow personal use asset exception. A capital gain on crypto can be disregarded if the asset was kept or used mainly to buy items for personal use, was held only briefly, and cost less than $10,000 to acquire. In practice this rarely applies — buying and holding crypto as an investment, or converting it to dollars before spending, takes it outside the exception. And capital losses on personal use assets are ignored entirely.
The ATO is watching: data-matching and records
Crypto is not anonymous to the ATO. Its crypto asset data-matching program collects transaction and account data directly from Australian exchanges (designated service providers) and matches it against what people report. The current program requested data covering up to 1.2 million accounts for the period 1 July 2023 to 30 June 2026 — so undeclared disposals are increasingly easy to spot.
That makes recordkeeping essential. You must keep records of each crypto transaction for at least five years from the later of when you prepared them or completed the transaction. Useful records include the date of each transaction, the AUD value at the time, what the transaction was for, who the other party was (even just their wallet address), and receipts for fees. The ATO's free CGT record-keeping tool can help you store and total these.
The bottom line
For Australian investors, the core rule is simple to state and easy to forget: crypto is property, and almost every disposal — including swapping one token for another or spending it — is a capital gains tax event valued in Australian dollars. Hold for more than 12 months and the 50% discount can halve an individual's gain; trade rapidly and each move counts. Keep clean records for five years, claim your losses, and let the capital gains tax calculator handle the maths on each disposal.