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 Building a Solid Financial Foundation Sustain financial well-being or create wealth through these actions. Should You Tap Retirement Savings to Fund College? There are three things to consider before dipping into retirement savings to pay for college. What Is a 1035 Exchange? 1035 exchanges provide a way to trade-in an annuity contract or life insurance policy without triggering a tax liability.