Tax Loss Harvesting Calculator
How much do your investment losses save in taxes?
Calculator
Calculate Tax Savings from Harvested Losses
Enter your realized gains and losses to see how tax loss harvesting reduces your tax bill.
Frequently Asked Questions
How does tax loss harvesting work?
You sell investments at a loss to offset capital gains. Short-term losses first offset short-term gains (taxed at ordinary rates), then long-term gains. Any remaining net loss offsets up to $3,000 of ordinary income. Excess carries forward to future years.
What is the wash sale rule?
You cannot claim a loss if you buy a "substantially identical" security within 30 days before or after the sale. To harvest the loss, wait 31 days or buy a similar (but not identical) investment. For example, sell one S&P 500 fund and buy a different one.
Can I carry forward unused losses?
Yes. If your net losses exceed your gains plus the $3,000 ordinary income offset, the excess carries forward indefinitely. You can use it in future years against future gains or $3,000 of income per year.
Tax Loss Harvesting Calculator
See exactly how much tax loss harvesting saves you. Enter your gains and losses to see the netting process, the $3,000 ordinary income offset, and any carryforward to future years.