Koinly

Koinly is crypto tax software that imports exchange and wallet transactions, tracks transfers and cost basis, and produces reports for tax filing. It connects to more than 800 exchanges and wallets, supports DeFi, staking and NFTs, and covers tax reporting for more than 20 countries.

Who is behind Koinly

Robin Singh is Koinly’s founder and CEO. He comments publicly on crypto tax, regulatory changes, global compliance, DeFi and NFTs. Koinly describes itself as self-funded, with no outside investors identified in its company materials. The company says more than 2 million users have used the platform and that its clients span more than 140 countries.

How it works

Account setup involves connecting exchange accounts through APIs or CSV files and adding blockchain wallets with public addresses. Koinly tracks transfers between connected wallets and keeps their original cost basis. Supported networks named by the company include Ethereum, Bitcoin, Tezos and Solana.

The platform calculates gains and losses, then previews tax results before a report is downloaded. It handles staking, lending, liquidity provision, DeFi activity and NFTs. Users can select FIFO, LIFO, ACB, Shared Pool or HIFO cost-basis methods. A portfolio dashboard tracks holdings and portfolio growth over time.

Fees and reports

The free plan includes transaction imports and tax-summary previews, but downloading a tax report requires payment. Paid plans start at $49 per tax year for 100 transactions. Koinly charges once per tax year rather than as a subscription. It supports Form 8949 and 1099-DA reports, plus exports for TurboTax and FreeTaxUSA, as well as accountants. A full refund is available within seven days if no tax report has been generated.

Availability and track record

Koinly provides dedicated country reports for the United States, United Kingdom, Australia, Canada and European jurisdictions. It accepts major debit and credit cards, as well as BTC, ETH, DAI and USDC for plan payments. The company says it is SOC 2 and ISO 27001 certified.

In December 2025, Koinly disclosed a Mixpanel security incident that may have exposed names, email addresses, location data and device details. Koinly said wallet and transaction data were not compromised and stopped using Mixpanel. The platform added Robinhood Chain in August 2026 and Bybit EU API support in August 2026.

Risks and limitations

Tax results depend on complete imports and correct transaction classification. Unsupported activity may require CSV uploads or manual review, while the free plan’s 10,000-transaction limit and paid-plan transaction tiers can increase costs for active traders. Connecting exchange APIs also creates data-access and privacy exposure, even though wallet connections use public addresses.