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 Question Thank you! Oops! Related Content Your DNA Test Preparing for the unexpected can make all the difference if your family relies on your income. When Do You Need a Will? When do you need a will? The answer is easy: Right Now. Should I Accept a Free Credit Lock? Learn the ins and outs of credit locks, freezes, and more.