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 Retirement Traps to Avoid Beware of these traps that could upend your retirement. Preparing for the Expected You can plan ahead to protect yourself and your family against the financial consequences of deteriorating health. Estimate Your RMD Help determine the required minimum distribution from an IRA or other qualified retirement plan.