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 Yours, Mine, and Ours: Estate Strategies for Second Marriage Second marriages are a trigger event to revisit any existing estate strategies. Retirement Redefined Around the country, attitudes about retirement are shifting. It Was the Best of Times, It Was the Worst of Times All about how missing the best market days (or the worst!) might affect your portfolio.