Crypto Tax Loss Harvesting in Australia (ATO Rules)
Offset crypto gains by realising capital losses before 30 June. Here's how loss harvesting works under ATO rules.
By Crypto Tax AU Editorial
Contents

Koinly
Koinly
Australian-founded crypto tax calculator with ATO-ready reports, 800+ exchange & wallet integrations, and strong DeFi and NFT support. Free to track your portfolio; pay only when you download a tax report.
Last verified Jul 17, 2026
What is tax loss harvesting?
Tax loss harvesting means selling assets that have dropped below your cost base to realise a capital loss, which you can use to offset capital gains from other crypto or investments. In Australia, you do this within the same financial year (1 July – 30 June).
How it works for crypto
Every crypto-to-crypto or crypto-to-AUD sale is a CGT event. If you sell a token for less than you paid, the difference is a capital loss. Losses first offset capital gains in the same year; any excess can be carried forward to future years.
Watch the wash-sale trap
The ATO can disallow a loss if you sell and rebuy the same asset quickly with the sole purpose of creating a tax loss. Wait a meaningful period, or use the proceeds differently, and document your intent. If in doubt, speak to a registered tax agent.
Don't harvest just for the tax saving
Only sell if it fits your portfolio strategy. A tax benefit is not a good reason to realise a loss if you still believe in the asset long term.
Software makes it easy
Crypto tax software such as Koinly and Syla tracks unrealised gains/losses and helps you see which parcels are underwater before 30 June.
General information only, current as a guide to ATO rules — not personal tax advice. Crypto tax depends on your circumstances. Verify with the ATO or a registered tax agent before you lodge.
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