Defitax
Defitax prepares cryptocurrency transaction data for tax reporting by calculating cost basis and gains or losses, then generating tax documents.
What Defitax is
Defitax prepares cryptocurrency transaction data for tax reporting by calculating cost basis and gains or losses, then generating tax documents. It is aimed at DeFi traders, including people using liquidity pools, bonding curves, prediction markets and perpetual futures. The web service lists Bitcoin, Solana, Ethereum, TRON, Base, BNB Chain, Polygon and Arbitrum, plus imports from major named exchanges and generic CSV. Its tracking covers activity such as perpetual positions, liquidity pool yields, bridges and NFTs. Cost basis options are FIFO, LIFO, HIFO and Specific ID, with universal or per-wallet tracking. Unlimited includes pre-filled forms for the United States, United Kingdom, Germany and Australia, plus CSV export for other jurisdictions and an AI Tax Agent. The Free plan allows up to 500 transactions and does not export reports. Unlimited costs $199 per year, paid once with USDC on Solana. Defitax warns that parsing, classification and price lookups can be inaccurate, and says users are responsible for reviewing reports and filings. It does not provide tax, legal, financial or accounting advice.
Good
- Supports eight listed blockchain networks.
- Offers four cost basis methods.
- Free plan allows up to 500 transactions.
- Unlimited includes pre-filled tax forms.
Watch out
- Free plan does not export reports.
- Unlimited costs $199 per year.
- Transaction parsing and price lookups may be inaccurate.
- Sales are final after premium access begins.
Who it suits
Defitax is intended for DeFi traders who need transaction data organized for tax reporting. It may also suit users whose activity spans supported chains, exchanges or tax jurisdictions.
Verdict
Defitax covers a wide range of DeFi activity and offers tax forms for four jurisdictions. Review its output carefully, since the service warns that transaction data may be inaccurate and filings remain the user’s responsibility.
Plans and prices
From Defitax's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Up to 500 transactions · PnL preview and dashboard · CEX CSV import · No report export · Always free |
| Unlimited | $199 a year | Unlimited sync · Report exports · Cost basis methods · Pre-filled tax forms · Multi-jurisdiction support · AI Tax Agent · Priority support · Paid once with USDC on Solana |
The facts
Each one read from Defitax's own pages, with the date it was checked.
What it does
- AI feature
- The AI Tax Agent can answer questions about transaction data, cost basis, PnL, and tax classifications, according to the homepage.checked 7 Oct 2026
- Authentication and privacy
- Defitax says users authenticate by connecting and signing with a Solana wallet and that it does not collect email, name, or phone number.checked 7 Oct 2026
- Data sharing
- The privacy policy says data is shared with blockchain and pricing APIs to operate the service and with Anthropic's Claude API when the AI Tax Agent is used.checked 7 Oct 2026
- DeFi and trading features
- The homepage describes automatic tracking for Hyperliquid perpetuals, prediction markets, launch platforms, liquidity pool yields, Jupiter DCA and perpetual positions, bridges, and NFTs.checked 7 Oct 2026
- Exchange imports
- The homepage lists Binance, Coinbase, Kraken, Bybit, OKX, Hyperliquid, MEXC, Orderly, CoinSpot, and generic CSV as exchange imports.checked 7 Oct 2026
- Intended users
- The maker says the product was built for DeFi traders, including people using liquidity pools, bonding curves, prediction markets, and perpetual futures.checked 7 Oct 2026
- Limits and accuracy
- The terms warn that transaction parsing, classification, and price lookups may be inaccurate, especially for obscure tokens, complex DeFi activity, or chains not fully supported.checked 7 Oct 2026
- Professional advice
- Defitax says it is not a tax, legal, financial, or accounting advisor and that users are responsible for reviewing their reports and filings.checked 7 Oct 2026
- Purpose
- Defitax describes itself as a cryptocurrency transaction data preparation and reporting tool that calculates cost basis and gains or losses and generates tax documents.checked 7 Oct 2026
- Refunds
- The terms state that sales are final and refunds are not available after immediate access to premium features is granted.checked 7 Oct 2026
- Support
- The Unlimited plan includes priority support.checked 7 Oct 2026
- Supported chains
- The homepage lists Bitcoin, Solana, Ethereum, TRON, Base, BNB Chain, Polygon, and Arbitrum as supported chains.checked 7 Oct 2026
- Tax forms
- The homepage lists pre-filled IRS Form 8949 and Schedule D, UK SA108, German Anlage SO, and Australian CGT forms, with CSV export for other jurisdictions.checked 7 Oct 2026
Money
- Cost basis
- The homepage says Defitax supports FIFO, LIFO, HIFO, and Specific ID methods, with universal or per-wallet tracking.checked 7 Oct 2026
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