Comprehensive Guide
Learn more in our Investing Guide.
How it works
crypto tax-loss harvesting calculator — general takes your inputs and produces gains offset by losses, tax savings, excess losses (carry forward), wash sale rule status. Calculate tax savings from harvesting crypto losses — sell losing positions to offset gains before year-end. You provide 4 inputs: Crypto gains this year (currency, in dollars) (default: 15000 dollars); Unrealized crypto losses (currency, in dollars) (default: 10000 dollars); Capital gains tax rate (%) (percent, in percent) (default: 15 percent); Days before repurchase (number) (default: 31). The calculator returns 4 outputs: Gains offset by losses (the primary result); Tax savings (a secondary output); Excess losses (carry forward) (a secondary output); Wash sale rule status (a supplementary figure). Investment calculations rest on a few variables — principal, return rate, time, and compounding — but their interaction is non-linear enough that intuition alone gets the answer wrong more often than not. This tool runs the real formula with your inputs and shows the numbers that matter, not the rounded approximations from a textbook. The underlying formula: Tax savings = Losses used × Tax rate. Remaining losses carry forward to future years. With the default values, gains offset by losses is computed from the interaction of every input field — change any one of them and the result updates immediately, so you can stress-test different scenarios without re-entering the whole form. Adjust the inputs to match your real financial situation. The defaults are realistic starting points, but every person's circumstances differ — your actual income, expenses, rates, and timelines will produce a different answer. Use the tool iteratively: start with the defaults, then change one variable at a time to see which factor has the largest impact on your outcome.Formula
Tax savings = Losses used × Tax rate. Remaining losses carry forward to future years.
Tips
- Crypto has NO wash sale rule — sell and immediately repurchase the same coin.
- Harvest losses before December 31 to count for the current tax year.
- Unused losses carry forward indefinitely.
- Use crypto tax software to track cost basis across exchanges and wallets.