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 Raising Healthy Children Healthy habits are one of the greatest gifts to give your child. A Taxing Story: Capital Gains and Losses Understanding how capital gains are taxed may help you refine your investment strategies. Should You Tap Retirement Savings to Fund College? There are three things to consider before dipping into retirement savings to pay for college.