In Australia, Capital Gains Tax (CGT) applies whenever you sell, swap, or otherwise dispose of a crypto asset. This includes trading one coin for another, selling for fiat, or using crypto to buy goods or services.
EG: Bought one Bitcoin at $50K. Price rises to $90K per one Bitcoin. You sell your entire one Bitcoin, resulting in a $40k realised Capital Gain (Profit). That $40k is Taxable.
EG: Bought one Bitcoin at $100K. Price falls to $75K per one Bitcoin. You sell your entire one Bitcoin, resulting in a $25k realised Capital Loss (Net Loss). That $25k is a tax reducing event (Deferred tax benefits towards future CGT).
As at the time of writing this resource (October 2025), the Australian Tax Office (ATO) treats crypto as an asset, not a currency, meaning every transaction that disposes of crypto can create a taxable event.
Understanding when to realise a loss or a gain is critical. In a volatile market, you can use these movements to your advantage.
Let’s look at the example:
You buy 1 BTC at $100,000.
BTC falls to $50,000.
You sell 1 BTC for $50,000, creating a capital loss of $50,000.
You instantly buy back 1 BTC for $50,000.
Now your tax record shows:
This capital loss can be offset for a number of years, remaining a useful tax tool for future CGT minimisation.
If BTC later rises to $120,000 and you sell:
Effectively, you only pay CGT on the net $20,000 gain, not the full $70,000.
Compounding as a tax tool, CGT in Australia is also decided by the duration of which you hold your untouched assets. If you hold your purchased Bitcoin for less than a 12 month period, your entire profits are subject to CGT. However, if you purchased Bitcoin over 12 months ago, your profits would qualify for a 50% CGT discount, essentially halving the taxable profits.
Lets play out this scenario of a corporate employee who invests on the side:
The Bitcoin investment was held for 1.5 years (18 months).
As that is longer than 12 months, the investor qualifies for the 50% CGT discount (for individuals and trusts).
So, the taxable capital gain is now $25,000
The discounted gain ($25,000) is added to the investor’s taxable income for the year and taxed at their marginal income tax rate.
For 2025/26, the Australian individual tax brackets (excluding 2% Medicare levy) are as follows:
Taxable Income
Tax Rate
0 – $18,200
Nil
$18,201 – $45,000
16c for each $1 over $18,200
$45,001 – $135,000
$4,288 plus 30c for each $1 over $45,000
$135,001 – $190,000
$31,288 plus 37c for each $1 over $135,000
$190,001 and over
$51,638 plus 45c for each $1 over $190,000
Here’s how you can maximise tax benefits legally and effectively:
Offset current-year gains:
If you made gains earlier in the year (e.g., from selling ETH, stocks, or property), realise strategic losses before June 30 to offset them.
Carry forward losses:
If you have no gains this year, you can carry capital losses forward indefinitely to reduce future taxable gains.
Long-term holding discount:
If you hold crypto for 12 months or more before selling, individuals can get a 50% CGT discount on gains. This doesn’t apply to companies.
Keep clean records:
The ATO requires detailed records for every trade, including:
Use crypto tax software or spreadsheets to maintain accuracy.
(COMING SOON | Shepley Capital Investment Tax Calculator)
Here are a few bonus scenarios to help you understand the concept of CGT:
Scenario 1 – Tax-Loss Harvesting Mid-Year:
You bought 2 ETH at $5,000 each ($10,000 total).
ETH drops to $3,000 each ($6,000 total).
You sell both for $6,000 and immediately buy back 2 ETH.
Result: $4,000 realised capital loss.
You can use that to offset other capital gains that year.
Scenario 2 – Long-Term Investor:
You bought 1 BTC at $40,000 in 2021.
You sell at $80,000 in 2024 after 3 years.
Your gain is $40,000, but with the 50% CGT discount, you only pay tax on $20,000.
Scenario 3 – Portfolio Rebalancing:
You decide to exit a poorly performing altcoin and rebalance into BTC.
You sell the altcoin at a loss, realise a deductible capital loss, and reinvest in a more stable asset.