Financial Calculators

Free Capital Gains Tax Calculator

Estimate federal capital gains tax on stocks, real estate, and other investments. Covers short-term (ordinary rates) and long-term (0% / 15% / 20%) rates for 2026.

The Sale
Your Tax Situation

Your taxable income before this capital gain. Used to stack the gain into the correct bracket.

Frequently Asked Questions

Important Notice — Not Tax Advice

This capital gains tax estimation tool is provided for informational and educational purposes only and does not constitute legal, tax, financial, or professional advice. Results are estimates based on the inputs you provide and current published rates, which may change without notice.

Tax laws vary by federal, state, and local jurisdiction and may not reflect your individual situation. Eonebill makes no warranty as to the accuracy, completeness, or applicability of any output and is not responsible for any decisions made based on this tool.

Before filing any tax form, claiming a deduction, or making a financial decision, consult a qualified tax professional, CPA, or licensed attorney. For official guidance, visit IRS.gov or your state's department of revenue.