Bitcoin tax in Australia: the part most BTC holders underestimate
BTC investors often assume tax is only a cash-out problem. In practice, the hard part is usually working out which BTC parcel was disposed of, whether the 12-month discount applies, and what AUD value should anchor the event.
The plain-English answer
In this estimator, Bitcoin follows the same disposal logic as other crypto assets. Selling BTC for AUD can create a capital gain or loss. Swapping BTC into another asset can also create a disposal event.
For an individual investor, the 12-month CGT discount may apply only to disposals before 1 July 2027. From 1 July 2027, the discount is replaced by cost-base indexation, and the real gain is subject to a 30% minimum tax rate.
Why BTC investors get tripped up
Because BTC is often accumulated across multiple dates, the result depends heavily on parcel matching. This estimator uses FIFO, so the oldest remaining BTC parcels are matched first when you sell or swap.
Worked example
If you bought BTC in 2024, added more in 2025, then sold part of the position in early 2026, the oldest parcel is matched first in this version. That can change both the gain amount and discount eligibility.
Where this breaks down
If your BTC activity includes bridges, wrapped BTC, complex DeFi, or missing AUD records, this guide is no longer enough. Use the coverage page before leaning on the estimate.
Related crypto guides
Crypto Calculator
Estimate your crypto tax with FIFO parcel matching.
Crypto CGT Guide
How capital gains tax applies to crypto disposals.
Crypto Swap Guide
Why swapping BTC for another coin is still a taxable event.
Dogecoin Tax Guide
DOGE follows standard CGT rules; volatility makes the AUD value at the trade date critical.
Tax Accuracy & Sources
Reviewed: March 2026 · Tax year: 2026-27
General information about crypto tax in Australia for individual investors. Not tax advice.