What to check before choosing
Start with your actual exchanges, wallets and blockchains. Check API and CSV imports, duplicate detection and transfer matching. DeFi, staking and NFTs need closer attention; support for a blockchain does not establish that every transaction type is understood.
Your tax residence matters more than the interface language. Check the calculation method and report format for your situation. A capital-gains summary may still leave information to complete in your local return.
Start with our Koinly review
Koinly lets you import records and preview results before paying for a tax report. That is a useful way to see what the software can recover from your own history. Our review covers imports, pricing by tax year and the checks worth making before export.
Include earlier purchases that explain assets sold during the year. Compare a few known transactions with the original records and resolve missing-data warnings before relying on the figures.
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