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Tax-Loss Harvesting Strategy Calculator

Easily calculate tax savings from harvesting investment losses. Optimize your portfolio and improve your tax strategy with our free tool.

Business & Tax · Reviewed by FreeCalculators Editorial · Updated 2026-09-01

How it works

The Tax-Loss Harvesting Strategy Calculator is designed to help investors understand how they can save on taxes by offsetting capital gains with investment losses. This strategy involves selling investments that have decreased in value to realize a loss, which can then be used to reduce taxable income. For instance, if you have incurred $15,000 in losses from your investments and realized $5,000 in gains, the calculator allows you to see the tax implications of these figures. By applying the losses against the gains, your net taxable income would effectively decrease by $10,000. To illustrate further, let's say you have a tax rate of 24%. By applying the $15,000 loss to the $5,000 gain, you can calculate your potential tax savings. In this scenario, your tax savings would amount to $2,400, calculated as 24% of the net loss of $10,000. This demonstrates how tax-loss harvesting can lead to significant savings, especially in years with substantial capital gains. It’s essential to interpret the primary output of the calculator correctly. The result shows the tax savings you can expect based on your inputs, which can help you make informed decisions about your investment strategy. If your losses exceed your gains, you can carry forward the remaining losses to offset future gains, allowing for continued tax benefits. One common mistake to avoid is overlooking the wash sale rule, which can disallow your loss deduction if you buy back the same security within 30 days. This rule can complicate tax-loss harvesting strategies, so it is crucial to be mindful of your transactions around the time you realize losses.

Tips

  • Regularly review your investment portfolio to identify underperforming assets that may be candidates for tax-loss harvesting.
  • Consider the timing of your sales; harvesting losses before the end of the tax year can maximize your tax benefits for that year.
  • Be aware of the wash sale rule, which disallows a tax deduction if you repurchase the same or substantially identical security within 30 days.
  • Consult with a tax professional to ensure that your tax-loss harvesting strategy aligns with your overall financial goals and tax situation.

Frequently asked questions

What is tax-loss harvesting?
Tax-loss harvesting is a strategy used to offset capital gains by selling investments that have lost value, thus reducing taxable income.
How much can I save with tax-loss harvesting?
Your savings depend on your tax rate and the amount of losses. For example, with a $15,000 loss and a 24% tax rate, you could save $2,400.
Can I carry forward losses to future years?
Yes, if your losses exceed your gains, you can carry forward the remaining losses to offset future gains, up to $3,000 per year against ordinary income.
What are the risks of tax-loss harvesting?
The primary risk is the wash sale rule, which can disallow your loss deduction if you buy back the same security within 30 days. Additionally, selling at a loss may affect your long-term investment strategy.