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Koinly
Invoicing & Tax ToolsCalculate Your Crypto & DeFi Taxes ⚡ Supports 800+ exchanges ᐉ Coinbase ✓ Eth ✓ Solana.
Added June 13, 2026
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Koinly Crypto Tax Calculator: Simplify Your Cryptocurrency Tax Reporting
Why It Stands Out
Crypto tax reporting becomes difficult when transactions are spread across several exchanges, wallets, and blockchains. Transfers can be mistaken for taxable disposals, cost basis may be incomplete, and DeFi activity adds another layer of complexity. Koinly appears designed to bring these records into one place and turn them into tax calculations and reports.
The platform supports importing transaction data through exchange APIs, CSV files, and public blockchain wallet addresses. Its website highlights coverage for hundreds of exchanges and wallets, along with support for assets and networks such as Bitcoin, Ethereum, and Solana. The page also references DeFi activity including staking, lending, and liquidity provision.
How It Can Be Used
A typical workflow starts with connecting exchange accounts and wallets, then reviewing the imported transaction history. Koinly says it automatically tracks transfers between wallets and preserves their original cost basis, which can help reduce duplicate entries or misleading gains when assets are moved between accounts.
Before generating a report, users can preview profit and loss for a selected tax year. The site also describes portfolio tracking, return-on-investment views, and a tax-loss-harvesting feature for assessing the potential effect of selling assets at a loss. These tools may be useful for organizing records before filing, although the resulting calculations should still be checked against the user’s jurisdiction and circumstances.
Strengths
- Imports records through exchange APIs, CSV files, and public wallet addresses
- Covers exchange, wallet, blockchain, and selected DeFi transaction activity
- Provides tax-year previews, portfolio tracking, and tax-loss-harvesting views
- Mentions Form 8949, 1099-DA, and tax software report formats for U.S. users
Cons
- The page gives inconsistent figures for the number of supported exchanges and wallets
- Users still need to review imported data, missing cost basis, and complex transactions
- The supplied information does not clarify the cost of every report or export option
Important Details
For U.S. users, the website mentions Form 8949, 1099-DA reconciliation, and reports formatted for TurboTax and FreeTaxUSA. It also states that Koinly is available in more than 20 countries and can produce reports covering capital gains, income, and short- and long-term disposals. The page separately cites both 800+ and 900+ supported exchanges and wallets, so visitors should confirm current coverage for their specific platforms before importing data.
Koinly offers a free starting point for some portfolio and tax-year previews, according to the page, but the supplied information does not establish the cost of producing or exporting every report. Visitors should review the current pricing and supported tax formats before relying on it for filing.
Possible Fit and Evaluation Notes
This may suit investors, active traders, and DeFi users who want to consolidate scattered transaction records instead of managing spreadsheets manually. It could also be relevant to accountants who need structured crypto reports from clients. The main trade-off is that automated importing does not remove the need to review missing transactions, wallet transfers, cost-basis issues, or unusual DeFi events.
Koinly is worth investigating if your crypto activity spans multiple accounts and you need organized tax documentation. Treat it as a calculation and reporting aid rather than a substitute for independent tax advice, and verify its current integrations, jurisdiction support, and report requirements before filing.
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