Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. 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 Is a Variable Annuity Right for Me? Pundits go on and on about how “terrible” or “wonderful” annuities are, but they never talk about whether annuities are right. Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. A Look at Whole Life Insurance Whole life insurance remains in force as long as you remain current with premiums. Here's how it works.