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. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Your Changing Definition of Risk in Retirement A change in your mindset during retirement may drive changes to your portfolio. What's So Great About a Rollover? Making a career move requires tough decisions, not the least of which is what to do with the funds in your retirement plan. Thanks Mom It turns out Mom really did know best when she laid down essential truths to live by.