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 Coaches Coaches have helped you your whole life, in ways big and small. We’d like to be one of them. Financial Fixes: How to Survive Job Loss In the first few years after college, graduates tend to expect job turbulence. 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.