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 Capital Gains Tax When Selling Your Home If your clients are buying or selling a home, use this to help them determine if they qualify for capital gains taxes. The Business Cycle Understanding the economy's cycles can help put current business conditions in better perspective. Inventorying Your Possessions Creating an inventory of your possessions can save you time, money and aggravation in the event you someday suffer losses.