Crypto Tax Calculator Australia 2026

The Australian Taxation Office (ATO) treats cryptocurrency as property, not as currency. This means every time you dispose of a crypto asset — whether by selling, trading for another crypto, gifting, or using it to buy goods or services — you trigger a Capital Gains Tax (CGT) event. You must calculate the capital gain or loss for each disposal and report it in your tax return.

Your capital gain is calculated as the difference between what you received (the sale price) and your cost base (the purchase price plus any associated costs like exchange fees). If you held the asset for more than 12 months before disposing of it, you may be eligible for the 50% CGT discount, which halves your taxable gain on that asset.

The ATO method for calculating net capital gains follows a specific order: first, total all your capital gains for the financial year; second, subtract any capital losses (current year or carried forward); third, apply the 50% discount to any remaining net gains from assets held longer than 12 months. The resulting taxable capital gain is then added to your other taxable income and taxed at your marginal rate.

It is essential to keep detailed records of every crypto transaction. The ATO has data-matching programs with Australian cryptocurrency exchanges and can identify taxpayers who have bought or sold crypto. Penalties for not reporting crypto gains can be significant. All calculations in this tool run entirely in your browser — no data is sent to any server.