Sync Your Portfolio
Connect from 800+ exchanges, wallets, and blockchains. API, CSV, or direct sync done in seconds.
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Rated 4.5/5
Your crypto taxes, done in minutes
Built for Spanish crypto investors. Modelo 100 and Modelo 721 reports, ready to file.
Trusted By Leading Platforms
Built For Scale, Made For You
Handling millions of transactions with accuracy you can trust
1.5M+
Users Worldwide
$10B+
Crypto Tracked
25k+
Crypto Assets Supported
700M+
Transactions Processed
Rated 4.5/5 by over 10.5k users
Listen to what users saying?
As easy as 1-2-3
KoinX’s extensive integration with 800+ crypto exchanges makes calculating crypto taxes incredibly easy.
We Do The Math
KoinX auto-classifies every trade. Buy, sell, swap, staking, airdrops, DeFi, internal transfers and calculates gains automatically.
Download AEAT-Ready Reports
Get your Declaración de la Renta report instantly. Pay only when you're ready to download. No surprises.
Calculate My Taxes
It takes under 10 minutes
Handles every corner of Spain's crypto tax rules
From FIFO cost basis to the Modelo 721 threshold. KoinX handles it all, so your reports are always accurate.
Internal Transfers, Handled Correctly
Automatically detect transfers between your wallets and exchanges, eliminate duplicates, and maintain accurate cost basis across all your accounts.
Tax calculated correctly
Trades, swaps, staking rewards, airdrops and mining every transaction is tracked using FIFO and classified correctly between savings income and general income. No missed gains, no wrong classifications.
Unify Your Entire Crypto Portfolio
Monitor holdings across chains, exchanges, and wallets with real-time analytics, performance insights, and complete asset visibility.
Take Full Control Of Your Crypto Taxes
From tracking transactions to your Modelo 100 and 721 reports, KoinX handles your crypto taxes end to end.
