The ATO Is Watching Crypto: Data Matching Explained
The ATO runs a crypto data-matching program covering millions of accounts. Here's what it collects and what to do.
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 data matching?
The ATO obtains transaction and account data directly from Australian crypto exchanges (designated service providers) under its data-matching program. It covers a large share of Australian crypto users and is used to pre-fill and cross-check tax returns.
What the ATO can see
- Your identity details linked to exchange accounts
- Buy and sell transactions
- Wallet addresses in some cases
If your return doesn't match their data, you may get a "please explain" letter or an amended assessment with interest and penalties.
How to stay safe
Report accurately every year. Use crypto tax software to reconcile every exchange and wallet so your figures line up with what the ATO already holds. If your situation is complex or you've fallen behind, get a crypto-specialist registered tax agent to review it before the ATO contacts you.
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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