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 Question Thank you! Oops! Related Content Charitable Giving: Smart from the Heart Do you have causes that you want to support with donations? Tax Rules When Selling Your Home The tax rules governing profits you realize from the sale of your home have changed in recent years. What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability.