Estimate federal tax on the profit from selling stocks, crypto, real estate, or other assets.
Enter sale, basis, income, and holding period information to estimate capital gains tax.
Estimate only. Not tax, legal, accounting, investment, or financial advice.
Capital Gains Tax Guide
This calculator estimates the federal tax that may apply when you sell an asset for more than your adjusted basis. It can be used for planning around stocks, crypto, real estate, business property, or other assets, but it does not replace official tax software or a tax professional.
Cost basis generally starts with what you paid for the asset. This calculator also lets you add selling costs and capital improvements to estimate adjusted basis.
Short-term gains are generally gains on assets held for one year or less and are estimated using ordinary federal income tax brackets.
Long-term gains are generally gains on assets held for more than one year and may qualify for lower federal capital gains tax rates.
Capital gains tax is tax on profit from selling an asset for more than its adjusted basis. The tax treatment can depend on the asset type, holding period, filing status, income, and losses.
Short-term gains generally apply to assets held for one year or less. Long-term gains generally apply to assets held for more than one year and may qualify for lower federal tax rates.
No. This calculator focuses on federal estimates. Some states tax capital gains as ordinary income, while others may have different rules or no state income tax.
Net Investment Income Tax is an additional federal tax that may apply to certain investment income when income is above specific thresholds. This calculator includes a simplified NIIT estimate.
No. This calculator is for educational planning only. For filing, use official tax forms, tax software, or a qualified tax professional.
Last updated: April 2026