Tax Freedom Day Assess how many days you'll work to pay your federal tax liability. 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 Message Thank you! Oops! Related Content Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. 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. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.