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 Managing the Risk of Outliving Your Money Steps to help you sustain and grow your retirement savings. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. Tuning Your Social Security Benefit When should you take your Social Security benefit?