Tax loss harvesting calculator

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Estimate how harvested short- and long-term losses offset gains this year and how much loss carries forward.

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Estimated Current-Year Tax Savings

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Enter current gains, harvested losses, and tax rates to estimate how much tax-loss harvesting helps this year.

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Example calculations

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Balanced gain offset

Offset both short- and long-term gains

A common portfolio cleanup case where harvested losses hit multiple buckets before any carryforward remains.

Result: The harvested losses clear part of the short-term gain bucket, wipe out the long-term bucket, and can still create a carryforward if more loss remains.

Carryforward-heavy year

Losses are larger than current gains

Useful when you want to see how much loss remains available after the current year’s gains and the ordinary-income offset are used up.

Result: Once the current gains are absorbed, only the annual ordinary-income limit is used immediately and the remaining loss carries forward.

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