Open Source · Self-Hosted · IRS-Compliant
Open-source, auditable, self-hostable. The crypto tax engine built for DeFi users who don't trust black boxes.
Every tax calculation is transparent. Verify the logic yourself — no black-box algorithms, no hidden assumptions.
DEX swaps, LP positions, staking, bridges, wraps, NFTs — all handled with correct cost basis tracking.
Your financial data stays on your server. Docker deploy in minutes. No third-party data sharing.
| Feature | dTax | Koinly | CoinTracker |
|---|---|---|---|
| Open Source | |||
| Self-Hostable | |||
| NFT Tax Tracking | |||
| Auto DeFi Tx Classification | |||
| 1099-DA Reconciliation | |||
| Specific ID Lot Selection | |||
| Covered/Noncovered Classification | |||
| Regulatory Compliance Alerts | |||
| Regulatory Intelligence (MiCA, CRS 2.0, PARITY Act) | |||
| CARF 2027 Ready (67 Jurisdictions) | |||
| International Tax Methods (Germany, France, Japan, UK) | |||
| GENIUS Act stablecoin compliance | |||
| Historical Price Auto-Backfill (free) | Manual |
Full engine, 50 transactions/tax year
Unlimited transactions, full reports
Multi-client management for CPAs
15 countries supported: US, UK, Germany, France, Japan, Australia, Canada & more — 8 methods (FIFO, PMPA, Total Average, UK Share Pooling) + CARF 2027 Ready
The dTax tax engine is open source under AGPL-3.0. Deploy to your own server with Docker — full control over your data, forever free.
View on GitHub