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 Separating the Signal From the Noise A good professional provides important guidance and insight through the years. Getting a Head Start on College Savings A few strategies that may help you prepare for the cost of higher education. Systematic Withdrawals in Retirement Taking regular, periodic withdrawals during retirement can be quite problematic.