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 The Cost of Procrastination Don't let procrastination keep you from pursuing your financial dreams and goals. Coaches Coaches have helped you your whole life, in ways big and small. We'd like to be one of them. Global and International Funds Investors seeking world investments can choose between global and international funds. What's the difference?