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 Personal Finance Tips for Military Families Military families face unique challenges, making personal finance even more critical. Tax Rules When Selling Your Home The tax rules governing profits you realize from the sale of your home have changed in recent years. How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits.