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 How Financial Decision-Making is Like Camping It takes a plan to be successful when you head into the wilderness. Your finances are no different. Your DNA Test Preparing for the unexpected can make all the difference if your family relies on your income. 401(k) Plans Are Not Just for Big Businesses Many small businesses are one person businesses.