Koinly Promo Code 2026: $20 Off via Referral

Koinly doesn't run a permanent public promo code for new sign-ups. Unlike what some coupon-aggregator sites claim, the only discount available to everyone is the official referral program: 1) Go to koinly.io through a referral link. 2) Create your free account and import your data (exchanges and wallets). 3) On your first paid plan purchase, $20 is credited automatically — no code to enter. 4) The person who referred you also gets $20 credit. Koinly is free to preview your tax summary — paid only to download the final reports. Choose your plan by transaction count: Newbie (100 transactions), Hodler (1,000), Trader (3,000), Oracle (unlimited).

Koinly is compatible with 700+ exchanges and wallets: all the major exchanges (Binance, Coinbase, Kraken, Crypto.com, Bybit), hardware wallets (Ledger, Trezor), software wallets (MetaMask, Trust Wallet), DeFi protocols (Uniswap, Aave, Compound), and the main blockchains (Bitcoin, Ethereum, BNB Chain, Solana, Polygon). Import is via API or CSV. Koinly automatically recognises transaction types (buy, sell, staking, airdrop, mining, DeFi) and categorises them correctly.

Crypto capital gains are taxable in most countries, with rules and cost-basis methods that vary by jurisdiction (FIFO, average cost, etc.). These calculations are extremely complex across multiple years and exchanges. Koinly automates the calculation and generates the relevant pre-filled tax forms for your country — for instance, France's form 2086, plus a foreign-accounts declaration (form 3916) for non-domestic exchanges. It adapts its outputs to each supported country's requirements.

Beyond simple trading, Koinly handles the complexity of advanced transactions: DeFi (swaps, liquidity pools, yield farming — each swap can be a taxable disposal), staking (rewards often taxed as income), NFTs (buys, sells, minting), mining, and airdrops (specific tax treatment). DeFi often generates hundreds of transactions per active user — impossible to handle manually. Koinly is one of the few tools that handles DeFi well across jurisdictions.

Koinly is free to preview your tax summary (without downloading reports). Paid plans (per year): Newbie (~$49/year for 100 transactions), Hodler (~$99/year for 1,000), Trader (~$179/year for 3,000), Oracle (~$279/year for unlimited). With the $20 referral credit, the Newbie plan costs ~$29 in year one — worthwhile if it avoids a tax penalty or a crypto accountant's fees. These prices are competitive against Waltio, which charges similar rates.

Both are crypto-tax references: Koinly — founded 2018, 20+ countries, 700+ integrations, technically mature, popular internationally. Waltio — French (founded in Paris in 2019), native French support, built specifically for French tax, fewer integrations but enough for most French users. Verdict: if you use non-standard exchanges or exotic DeFi, Koinly has more integrations. If you mostly use mainstream exchanges and want perfect French support, Waltio.

Koinly accesses your exchanges via read-only APIs (no trading or withdrawal permissions) — your funds can never be moved by Koinly. Data is encrypted and GDPR-compliant; you can also import via CSV with no API access for more privacy. Koinly keeps your data year over year — you only add new transactions each year. Both API (automatic) and CSV (manual) import are supported.

Our verdict: Koinly is essential for any serious crypto investor. Strengths: 700+ integrations, DeFi and staking, compliant tax forms by country, a free preview, $20 credit via the official referral program. Weaknesses: an English-first interface, pricing by transaction count (can get pricey for very active traders), no permanent double-digit promo code despite what some coupon sites claim. A mistake in your crypto filing can cost far more than a Koinly subscription — the investment pays off.