Free Crypto Capital Gains Calculator
Paste your buys and sells. Get your short-term vs long-term capital gains, an estimated federal tax owed by filing status, and a ready-to-export Form 8949 summary. FIFO lot matching, US 2025/2026 brackets. No signup.
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.
Want this for your full wallet, not just pasted trades?
Crypto Clarity AI ($19 lifetime, no subscription) connects your wallets, runs the same FIFO logic across every chain you've used, and gives you a year-end Form 8949 export plus concentration-risk and scam-exposure analysis.
Get the $19 audit →How crypto capital gains tax works in the US
The IRS treats crypto as property. Every sell, swap, or use of crypto to pay for something is a taxable event. You owe tax on the gain — the difference between what you sold for and what you originally paid (your cost basis).
- Short-term gain — held for one year or less. Taxed at your ordinary income rate (10%–37%).
- Long-term gain — held for more than one year. Taxed at 0%, 15%, or 20% depending on your taxable income and filing status.
- Realized losses offset gains, then up to $3,000 of ordinary income per year. Unused losses carry forward indefinitely.
FIFO vs Specific ID
This calculator uses FIFO (first-in, first-out) — the default if you haven't specified another method in your records. FIFO matches each sell against your earliest remaining buy lot. If you used Specific Identification at the time of the trade and have records to prove it, your numbers may differ; talk to a CPA.