Free local-first Solana tax calculator and CSV exporter.
LanaTax lets you paste a Solana wallet address, fetch transaction history through Helius, review the activity in a browser UI, and export tax-ready CSV data for tools like Koinly and CoinLedger.
- Fetches Solana transaction history for a wallet
- Filters results by tax year
- Shows summary stats, transaction tabs, and progress while loading
- Exports CSV data for tax workflows
- Stores wallet, API key, tax year, and cached results in local browser storage
- Next.js 16
- React 19
- Solana wallet adapter +
@solana/web3.js - Helius API for transaction history
- Recharts for charts and reporting views
npm install
npm run devOpen http://localhost:3000.
Other useful commands:
npm run lint
npm run build- Wallet lookups happen against Helius when you request them
- Wallet address, API key, selected tax year, and cached transactions stay in local browser storage
- No account or sign-up flow is required
Production metadata points at tax.saneapps.com.