Capital Gains Tax Calculator

Estimate US federal capital gains tax on real estate or investment sales.

Quick answer: Free Capital Gains Tax Calculator online. Safely estimate US federal capital gains taxes on real estate and investment sales directly in your browser.

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mo
$/yr
Estimated capital gains tax$19,500
Capital gain$130,000
TypeLong-term (15% federal rate)
Net proceeds after tax$380,500
NoteFederal estimate only. Add state tax and consult a tax advisor for accuracy.

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Estimate the US federal capital gains tax on a property or investment sale — accounting for your holding period (short vs long term), adjusted cost basis including improvements, and your income bracket.

How it works

  1. Enter the original purchase price (cost basis) of the asset.
  2. Enter the final sale price and the value of any capital improvements.
  3. Input your holding period and annual income to determine the correct tax bracket and gain.

Frequently asked questions

What is the primary residence exclusion?

If you lived in the home as your primary residence for 2 of the last 5 years, you may exclude up to $250,000 ($500,000 married filing jointly) of gain from federal tax.

What improvements count?

Permanent improvements that add value (new roof, addition, kitchen remodel) increase your basis and reduce taxable gain. Repairs and maintenance do not count.

Does my state tax capital gains?

Most US states tax capital gains as ordinary income. This calculator covers federal tax only — add your state rate on top.

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