Overview
Koinly is the strongest crypto tax software we’ve tested for international users. Founded in 2018 by Robin Singh, headquartered in Cyprus, and now used by over a million customers across 100+ countries. What makes Koinly stand out isn’t any single feature — it’s the specific care taken to handle tax rules that differ meaningfully between jurisdictions. If you live in Australia and Koinly generates an ATO-compatible report, it’s a genuinely correct report for the ATO’s actual rules, not a US-shaped report with a country dropdown.
The free tier is unusually useful: unlimited transaction import and display, with the only paywall being downloading the finished tax report. This means you can connect all your exchanges, wallets, and DeFi positions, see exactly what Koinly calculates your tax liability to be, and only pay when you’re ready to file. This “diagnose before you pay” flow is honest and it’s how tax software should work.
Coverage and integrations
Koinly supports 800+ exchanges via direct API, CSV import, or read-only key. All the major ones — Binance, Coinbase, Kraken, KuCoin, Bybit, Bitstamp, Gate.io — sync automatically. Wallet integrations cover 170+ chains including Bitcoin, Ethereum, Solana, all major L2s, and DeFi-relevant chains like Arbitrum and Optimism. NFTs are handled (including OpenSea, Blur, Magic Eden). DeFi transactions across Uniswap, Aave, Curve, and similar protocols categorise correctly in most cases — though anything genuinely exotic (yield farming with rebasing tokens, LP positions with impermanent loss) will need manual review, as it would in any tax software.
Data quality is where Koinly meaningfully leads competitors. The categorisation engine correctly identifies most transactions as trades, transfers, income, gifts, or lost/stolen — the categories that matter for tax purposes — with less manual intervention required than in CoinLedger or CoinTracker in our tests.
Country-specific handling
Koinly’s genuine differentiator. It handles tax rules for 100+ countries with actual local logic, not templates. Examples of what this means practically:
- UK users get proper Section 104 pooling, same-day rules, and 30-day (bed-and-breakfast) rules applied correctly
- Australian users get personal use asset exemptions applied where eligible
- Canadian users get correct treatment of the 50% inclusion rate on capital gains
- German users get the one-year holding-period exemption applied automatically
- Nordic countries get their specific inventory methods
Compare this to US-first tax tools that give you “cost basis method: FIFO or specific ID” and expect the user to know the rest. Koinly does the specific-country work for you.
For US users, Koinly handles US rules competently — it’s not weaker at US than the US-focused competitors — but the local coverage strength is why non-US users choose it.
Pricing
Four tiers, all annual:
- Newbie — $49/year, 100 transactions
- Hodler — $99/year, 1,000 transactions
- Trader — $179/year, 3,000 transactions
- Pro — $279/year, 10,000+ transactions
Pricing is straightforward. Sync limit is per tax year, so if you’re filing across multiple years, you may need to upgrade or purchase per-year. There’s no monthly plan — this is annual tax software, priced accordingly.
Where Koinly wins
For expats, dual-country residents, and anyone outside the US, Koinly is the clear pick. The free-tier diagnostic flow is genuinely useful. The integration breadth means most users can get their entire history imported automatically. Support is responsive and specialists actually understand crypto tax nuances.
Where Koinly loses
If you’re US-only with a simple portfolio and want TurboTax integration to be the smoothest possible, CoinLedger may edge ahead — its TurboTax export is more polished. If you’re a Coinbase user specifically, CoinTracker’s official Coinbase partnership means better one-click sync and Coinbase-provided support integration.
For very high-transaction-count users (10,000+ trades per year — active bot users, high-frequency traders), Koinly performance can slow. Not unusable, but noticeably slower than a smaller portfolio.
The verdict
Koinly scores 4.5/5. The highest score in our tax software category. For 90% of readers — anyone not exclusively US-based with a Coinbase-only portfolio — Koinly is the right choice. The free-tier diagnostic model is the honest way to price tax software. The country-specific logic is genuinely better than the competition.
Do the free import first. If Koinly shows you a tax liability that matches your rough expectations, buy the report tier that fits your transaction count. If it doesn’t, that’s a bug to raise with support before you file anywhere.