Free US Crypto Tax Calculator

Paste your buys and sells from any exchange. Get short-term vs long-term gains, estimated federal tax, tax-loss harvesting flags, and a Form 8949 summary. FIFO matching. No signup, no email, no wallet connect.

Capital GainsShort vs Long-TermLoss HarvestingForm 8949BitcoinEthereumWash-Sale Rule
Not tax advice. Estimates only, US federal brackets (2025/2026), no state tax. Confirm every number with a licensed CPA before filing.
CSV format: date, type, asset, qty, price_usd. Type is buy or sell. Date is YYYY-MM-DD. Price is total per-unit USD price (not total cost).

Form 8949 summary

Per-lot detail, FIFO matched. Copy into your tax software or download as CSV.

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