Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content What's My 2023 Tax Bracket? Check out this handy reference of updated ranges from the IRS in case your designated bracket has changed. What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability. The Five Basics of Financial Literacy How literate are you when it comes to your finances? Brush up with these five basics.