Koinly is a cryptocurrency tax software platform founded in 2017 and used by over 1.5 million investors worldwide. It automates the most tedious parts of crypto tax compliance — importing trades, normalising transaction data, tracking cost basis across transfers and chain hops, and producing ready-to-file capital-gains and income reports — so that filing takes "under 20 minutes" rather than the days many investors spend manually wrangling CSV files.
The platform connects to 800+ exchanges and wallets via API sync, CSV import, EVM auto-sync and xPub / yPub / zPub import, and supports 20,000+ cryptocurrencies with 8+ years of historical spot prices. Koinly handles the pain points every crypto investor hits — DeFi activity (staking, lending, liquidity pools), NFTs, margin trades, mining, airdrops, spam transactions and internal transfers between your own wallets — automatically classifying each event and preserving cost basis across chain hops.
The 2026 US tax year introduced the IRS's new Form 1099-DA, which centralized crypto exchanges are now required to file directly with the IRS. Koinly was one of the first crypto tax tools to ship full 1099-DA reconciliation — it ingests the broker-issued 1099-DA, reconciles it against your full on-chain transaction history, and outputs a corrected Form 8949 with accurate cost basis (which brokers frequently omit when crypto has been moved between platforms, leading investors to overpay).
Koinly's reporting covers the US (Form 8949, Schedule D, 1099-DA reconciliation), the UK (HMRC capital-gains summary), Germany (Anlage SO), Australia (ATO), Canada (ACB), Sweden, Norway, Denmark, and a generic "International" report that works for FIFO / LIFO / HIFO / Average-cost filers anywhere in the world. Reports export directly to TurboTax, TaxACT and TaxSlayer, or as a CPA-ready PDF + CSV bundle.
Koinly sits at the intersection of ease-of-use and depth-of-coverage: the free tier lets investors preview capital gains before paying (no commitment for tracking or portfolio management), while the Newbie, Hodler and Trader tiers ($49 / $99 / $199 per tax year) provide reporting capability scaled by transaction volume. Pricing is transparent and charged per tax year rather than as a recurring subscription, and the platform accepts both card and crypto (BTC, ETH, DAI, USDC) payment.
Across 2,000+ Trustpilot reviews, Koinly holds an "Excellent" rating, with users highlighting the seamless API sync, auto-classification of complex DeFi activity, and TurboTax integration. The product is a common alternative to CoinTracker for non-US filers and for US filers who want a slicker UI and broader international report coverage.
















