Koinly

Koinly is a cryptocurrency tax reporting and portfolio tracking platform designed to automate the complex process of calculating capital gains, losses, and tax liabilities across multiple exchanges, wallets, and blockchain networks. It supports 800+ exchanges, 170+ wallets, and 100+ blockchains with localized tax compliance for 20+ countries. Koinly bridges the gap between active trading and regulatory compliance by automatically importing transactions, calculating tax-adjusted performance metrics, and generating country-specific tax reports ready for submission to tax authorities.

Koinly handles the end-to-end tax and portfolio management workflow for cryptocurrency traders:

Automatic Transaction Ingestion Connect to 800+ supported exchanges (Binance, Coinbase, Kraken, KuCoin, Bybit, Deribit, and others) via secure API integration or manual CSV/XLSX import. The platform automatically syncs all trade executions, deposits, withdrawals, and transfers in real time. Support for 170+ wallet types including MetaMask, Ledger, Trezor, and hardware wallets enables tracking of on-chain transactions and self-custody holdings.

Tax Calculation Engine Automatically calculates capital gains and losses using multiple cost-basis methods: FIFO (first-in-first-out), LIFO (last-in-first-out), HIFO (highest-in-first-out), and ACB (average cost basis). The system tracks all taxable events including spot trades, futures settlements, staking rewards, liquidity pool fees, airdrops, and NFT sales. Tax-loss harvesting analysis identifies opportunities to offset gains with losses.

Portfolio Tracking and Performance Metrics Real-time portfolio valuation across all connected accounts, with historical performance charts, cost basis tracking, and unrealized gains/losses. Generate custom reports to analyze trading performance independent of tax considerations, isolating trader performance from tax-adjusted returns.

Multi-Country Tax Compliance Localized tax rules for US (IRS Form 8949), UK (HMRC), Canada (CRA), Australia (ATO), Germany (BaFin), and 20+ additional jurisdictions. Generate tax reports in formats compatible with TurboTax, TaxAct, TaxJar, and other tax software platforms, or export data formatted for direct submission to tax authorities.

• Tax calculation: automatic capital gains/losses using FIFO, LIFO, HIFO, ACB methods
• Tax reports: generate reports for TurboTax, TaxAct, HMRC, ATO, CRA, and more
• Exchange import: API sync and CSV import from 800+ exchanges
• DeFi support: liquidity pools, staking rewards, airdrops, NFT sales
• Portfolio tracking: real-time portfolio value and performance
• Margin trading: support for futures and margin trades
• Multi-country: US, UK, Canada, Australia, Germany, and 20+ countries
• Cost-basis methods: FIFO, LIFO, HIFO, and average cost basis selection
• Wallet integration: 170+ wallets including MetaMask, Ledger, Trezor
• Blockchain support: 100+ blockchains (Ethereum, Solana, Polygon, Arbitrum, Optimism, and others)

Active Day Traders High-frequency traders executing 100+ trades monthly across multiple exchanges and contracts. Koinly automates transaction categorization and tax liability calculation, essential for traders managing complex margin and futures positions requiring precise tax reporting.

Swing Traders and Position Traders Medium-term traders holding positions across spot and derivatives markets. Koinly tracks entry/exit prices, realized gains, and tax-loss harvesting opportunities to optimize after-tax returns without manual spreadsheet management.

DeFi Participants Users engaged with liquidity pools, yield farming, staking protocols, and smart contract interactions. Koinly captures non-obvious taxable events like impermanent loss, protocol incentives, and governance token distributions that most traders overlook.

Quantitative Traders and Bot Operators Algorithmic traders running automated strategies across exchanges. Koinly integrates with API-based portfolio tracking and generates transaction reports directly from exchange data, eliminating manual trade logging for bot-executed strategies.

Cryptocurrency Fund Managers Professional traders managing portfolios for clients or funds. Koinly provides audit-ready documentation, performance reporting separated from tax calculations, and multi-account consolidation for compliance and client reporting.

Scenario 1: Optimizing Tax-Adjusted Returns A swing trader executes 200 trades annually across Binance and Coinbase, generating mixed profit and loss trades. Rather than calculating tax liability manually at year-end, Koinly tracks each trade in real time, identifies tax-loss harvesting opportunities (selling losers to offset winners), and calculates cumulative tax burden throughout the year. The trader can adjust strategy mid-year if tax liability exceeds capital gains targets.

Scenario 2: Multi-Exchange Margin Trading A day trader manages margin positions on Bybit futures, spot trades on Binance, and options on Deribit simultaneously. Each platform calculates positions differently. Koinly consolidates all three platforms into a single portfolio view, correctly categorizes margin interest as expense, and calculates tax on realized futures PnL separately from spot trades, ensuring accurate reporting to tax authorities.

Scenario 3: DeFi Yield Strategy Tracking A trader deploys capital in Uniswap v3 liquidity pools on Ethereum and Arbitrum, earning swap fees and governance tokens. The strategy generates dozens of small transactions—deposits, withdrawals, fee claims, and token airdrops. Manual tax tracking would be error-prone. Koinly automatically identifies all taxable events, assigns fair-market-value prices at transaction time, and calculates cost basis for each governance token received.

Scenario 4: Year-End Tax Planning A professional trader needs to file taxes in three jurisdictions by different deadlines. Koinly generates country-specific tax reports formatted for HMRC (UK), CRA (Canada), and IRS (US), each using the correct cost-basis method and tax classification for the jurisdiction. The trader submits these reports without manual recalculation or spreadsheet reconciliation.

Scenario 5: Strategy Performance vs. Tax Impact A trader backtested a strategy on StratBase.ai showing 25% annual returns. Koinly reveals the after-tax return is 18% due to short-term capital gains taxes (higher rate than long-term gains). The trader adjusts holding periods in future backtests to prioritize strategies with lower turnover and longer-term positions, directly informing strategy design.

Exchanges: Binance, Coinbase Pro, Kraken, Bitstamp, KuCoin, Bybit, Deribit, OKX, Gemini, Huobi, Upbit, Bithumb, FTX (historical data), and 790+ others via API or CSV import.

Wallets: MetaMask, Ledger, Trezor, Coinbase Wallet, Trust Wallet, Gnosis Safe, and 160+ additional wallet types through blockchain address tracking.

Blockchains: Ethereum, Solana, Bitcoin, Polygon, Arbitrum, Optimism, Avalanche, Fantom, Binance Smart Chain, and 90+ additional chains.

Tax Software Integration: TurboTax, TaxAct, TaxJar, AccountEdge, and direct export for HMRC, ATO, CRA tax forms.

• Free: portfolio tracking with up to 10,000 transaction records, no tax reports
• Newbie: $49/year — up to 100 transactions, basic tax reports
• Hodler: $99/year — up to 1,000 transactions, full tax reports
• Trader: $179/year — up to 10,000 transactions, advanced reporting
• Pro: $279/year — up to 50,000 transactions, priority support, team accounts

StratBase.ai backtesting simulates trading strategy performance under historical market conditions, revealing gross returns, drawdowns, and risk metrics. However, backtests typically ignore tax impact—a critical omission for real-world trading.

Koinly bridges this gap by:

Validating After-Tax Strategy Returns A strategy that appears profitable in StratBase.ai backtesting may underperform after taxes. By logging actual executions from a StratBase.ai-informed strategy into Koinly, traders see the true after-tax return and identify whether the strategy generates excessive short-term gains versus long-term positions.

Informing Backtesting Assumptions Traders can use Koinly's tax data from previous strategies to model tax drag into future StratBase.ai backtests. If a trader's average tax rate is 30% on short-term gains and 15% on long-term gains, they can adjust backtesting assumptions to include this drag, revealing whether a high-turnover strategy justifies its execution costs and tax impact.

Tracking Cost Basis for Entry/Exit Signals Koinly's cost-basis tracking clarifies which positions are long-term (eligible for lower tax rates) and which are short-term. A trader may notice that a StratBase.ai strategy generates many short-term winners; Koinly data suggests adjusting holding periods to capture long-term rates, a refinement that improves after-tax returns without changing the core signal.

Documenting Realized Performance for Strategy Refinement Export Koinly transaction data to compare actual trading results against StratBase.ai backtest predictions. Slippage, fees, and market impact reduce gross returns; comparing actual execution to backtested returns identifies whether model assumptions were realistic and where simulations diverged.

1. Sign up at koinly.io
2. Connect your exchanges and wallets via API key or CSV import
3. Review and reconcile imported transactions, categorizing any non-standard events
4. Select your cost-basis method (FIFO, LIFO, HIFO, or ACB) and country for tax rules
5. Generate tax reports formatted for your jurisdiction
6. Export transaction data or performance reports for strategy analysis and filing

• Koinly Website
• Supported Integrations
• Help Center
• Tax Rules by Country