Crypto tax in Australia is genuinely complex. The ATO treats every disposal of a crypto asset as a CGT event, meaning every trade, swap, staking reward, and airdrop needs to be tracked and reported correctly. For many Australians, Koinly has become the default answer to that problem. It connects to exchanges, imports transaction history, and generates ATO-ready tax reports with a few clicks. But does it live up to the reputation? This review takes a close look at Koinly's features, pricing, accuracy, and where it falls short for Australian users in 2026.
What is Koinly and how does it work?
Koinly is a cloud-based crypto tax software platform founded in 2018. It works by connecting to your exchanges, wallets, and DeFi protocols via API or CSV import, then categorising every transaction and applying the correct tax treatment. For Australian users, Koinly applies ATO guidance: CGT rules for disposals, income treatment for staking and mining rewards, and the 50 per cent CGT discount for assets held longer than twelve months.
Once your data is imported, Koinly builds a full transaction ledger and lets you generate a range of reports. The most important for Australians is the ATO Tax Report, which maps directly onto the income tax return. You can also generate a Capital Gains Report, an Income Report, and an Expense Report. These are the documents your accountant or tax agent will use, or that you can upload directly if you are self-lodging.
Exchange and wallet integrations
Koinly supports over 700 exchanges and wallets globally. For Australian users, the key integrations are all covered: CoinSpot, Swyftx, BTC Markets, Independent Reserve, and Binance Australia. It also supports major international exchanges that Australians commonly use, including Binance, Kraken, and Coinbase.
API connections are generally smooth for the major platforms, pulling historical data automatically. CSV imports are available for exchanges where direct API access is not supported. The platform also supports wallet address tracking for Bitcoin, Ethereum, Solana, and most major chains, which matters for anyone who moves assets off exchange into self-custody.
DeFi integration is more variable. Koinly handles most Ethereum-based DeFi activity reasonably well, including Uniswap, Aave, and Compound interactions. However, more complex protocols, cross-chain bridges, and NFT activity can produce categorisation errors that require manual review. This is not unique to Koinly; it reflects the genuine complexity of DeFi tax treatment, which is still an evolving area under ATO and ASIC guidance on DeFi in Australia.
ATO compliance and accuracy
Koinly's ATO compliance is its strongest selling point for Australian users. The platform applies FIFO (first in, first out) cost-basis accounting by default, which aligns with the ATO's preferred methodology. It also supports HIFO (highest in, first out) and ACB (average cost basis), though Australian users should consult a tax professional before deviating from FIFO.
The 12-month CGT discount is applied automatically to eligible disposals, which is a meaningful feature for Australian long-term holders. Staking rewards, interest income from crypto lending, and airdrop income are all categorised as ordinary income by default, consistent with current ATO guidance.
Accuracy depends heavily on the quality of your data. If your exchange history imports cleanly with no gaps, Koinly's calculations are generally reliable. The problems arise when there are missing transactions, transfers between wallets that Koinly can't match automatically, or complex DeFi interactions. In those cases, Koinly flags unmatched transactions and asks you to review them. Getting those right takes time and, in some cases, specialist knowledge. Given that the ATO's data matching program is pulling transaction records directly from Australian exchanges, the stakes for getting this right are higher than ever.
Pricing: what does Koinly cost in AUD?
Koinly uses a transaction-based pricing model. You can sign up for free and import all your data at no cost, but generating tax reports requires a paid plan. Pricing is set in USD but charged in AUD at the prevailing rate.
As of 2026, Koinly's plans work roughly as follows. The Newbie plan covers up to 100 transactions and costs around AU$65 per tax year. The Hodler plan covers up to 1,000 transactions and sits around AU$130. The Trader plan (up to 3,000 transactions) runs to around AU$215, and the Oracle plan (up to 10,000 transactions) is around AU$375. There is also an unlimited plan for high-volume traders.
These prices are per financial year. If you are auditing multiple prior years, costs add up quickly. That said, Koinly does offer a discount if you purchase reports for multiple years at once, and accountant pricing is available for professionals managing client portfolios.
User experience and interface
Koinly's interface is clean and well-organised. The dashboard gives you a snapshot of your portfolio value, total gains, income, and fees. The transaction ledger is searchable and filterable, which helps when you need to hunt down a specific trade or resolve a categorisation issue.
The onboarding process is straightforward. Adding an exchange via API takes a few minutes, and Koinly walks you through the process for each supported platform with step-by-step guides. The free tier lets you see your entire transaction history and a summary of your tax position before you commit to paying for a report, which is a genuine advantage over some competitors that obscure your data behind a paywall.
Customer support is handled primarily through a help centre and email tickets. Response times can be slow during tax season (May to July in Australia), which is precisely when most users need help most. A live chat option exists on paid plans but is not always staffed promptly.
Where Koinly falls short
The biggest limitation is DeFi and NFT handling. If you are an active DeFi user across multiple chains, expect to spend meaningful time reviewing and correcting Koinly's automatic categorisations. Liquidity pool transactions, yield farming rewards, and wrapped token activity are areas where errors are most common.
Koinly also does not provide personal tax advice. The platform categorises transactions and generates reports, but it cannot tell you whether a particular strategy is tax-optimal or how the ATO would view a novel DeFi interaction. For complex situations, you still need a crypto-specialist accountant.
Finally, pricing can be a barrier for high-volume traders. If you are executing hundreds of trades per month across multiple platforms, you may be looking at the Oracle or unlimited plan, which represents a meaningful annual cost. It is worth comparing Koinly against alternatives before committing, particularly if your transaction volumes are high.
Who is Koinly best suited to?
Koinly is best suited to Australian retail investors and moderate traders who hold assets on a handful of exchanges and do not have large amounts of complex DeFi activity. If your crypto activity is primarily spot trading on Australian exchanges like CoinSpot, Swyftx, or Independent Reserve, with some holding in a hardware wallet, Koinly will handle your tax reporting accurately and with minimal friction.
It is also a solid choice for SMSF trustees who need clean, auditable records of their fund's crypto transactions. The ability to export detailed transaction history and capital gains reports is useful for fund audits.
For a broader view of how Koinly stacks up against other tools on the market, the best crypto tax software for Australians in 2026 gives a side-by-side comparison of the leading options, including Crypto Tax Calculator and CoinLedger.
Verdict
Koinly is a capable, well-designed crypto tax tool that handles the core use case well: importing Australian exchange data, calculating CGT correctly, and generating ATO-ready reports. The free tier is genuinely useful, the interface is intuitive, and the coverage of major Australian exchanges is comprehensive.
Its weaknesses are real but not disqualifying. DeFi handling requires more manual oversight than the marketing suggests, and pricing at higher transaction volumes is not cheap. For most Australian retail investors, though, Koinly is a reasonable choice and a significant improvement over spreadsheets. Just make sure your data is complete before generating your report, because the ATO's data matching will flag discrepancies regardless of which tool you use.
General information only. This article does not constitute financial or tax advice. Consult a qualified tax professional for advice specific to your circumstances.