WalletLens exports your complete transaction history as a free CSV — every buy, sell, and transfer with date, asset, quantity and price. Use it to prepare your crypto tax return, import into a tax tool like Koinly or CoinTracker, or share with your accountant. No account, no subscription, no API key.
Open WalletLens and export your transaction history →
Crypto tax authorities (IRS, HMRC, ATO, and others) treat cryptocurrency as a taxable asset — every sale, trade, and in some cases transfer is a taxable event. To calculate your tax liability, you need a complete, accurate record of every transaction: what asset, how much, at what price, and on what date.
The challenge is that most people hold crypto across multiple exchanges and wallets. Manually assembling a complete transaction log is tedious, error-prone, and easy to defer until tax season — when reconstructing months of trades becomes genuinely painful.
WalletLens solves this by acting as the single place you log every trade as you make it, using whatever input method is fastest: voice, screenshot, or manual entry. At tax time, you export one clean CSV instead of logging into six exchanges and downloading six separate reports.
Export your transaction history now →
Each row in the transaction history export represents one transaction:
This format gives a tax professional or software tool everything needed to compute short-term and long-term capital gains under any accounting method (FIFO, LIFO, average cost).
After downloading the CSV, you have several options:
WalletLens tracks your average cost basis per asset automatically — updated with every new buy or sell you record. This is the weighted average price you paid across all your purchases, which is the most commonly used method for crypto tax in many jurisdictions. You can see your cost basis per holding directly in the dashboard at any time, without waiting for tax season.
WalletLens stores your transaction history in your browser's local storage only. No transaction data is transmitted to any server — not when you log a trade, not when you view your history, and not when you export. The CSV is generated locally and downloaded directly to your device.
WalletLens exports your complete transaction history as a free CSV — the foundation of any crypto tax calculation. The CSV is free with no account. For automatic gain/loss calculations, you can import the CSV into a dedicated tax tool like Koinly or CoinTracker.
Each row covers one transaction: date and time, asset name and ticker, quantity, price per unit at time of transaction, total value, and transaction type (buy, sell, or transfer). This gives a tax professional or tax tool everything needed to calculate short-term and long-term capital gains.
The CSV format is compatible with most major crypto tax platforms including Koinly, CoinTracker, CryptoTaxCalculator, TaxBit, and ZenLedger. You may need to map the column headers to the format each tool expects — this is a one-time step usually covered in their import documentation.
WalletLens shows your unrealised gain or loss per holding (the difference between your average cost basis and the current price). It does not calculate realised capital gains for tax purposes. For an official tax report with short/long-term gain split, import the transaction CSV into a dedicated tax tool.
Yes. Your transaction data is stored only in your browser's local storage. When you export, the CSV is generated in your browser and downloaded directly to your device. No transaction data is transmitted to WalletLens servers.
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