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 Good Health is Good Business Good employee health can be great for the company’s bottom line. How to Appeal Your Property Taxes For homeowners who think their property taxes are too high, there are ways to appeal. Estate Management 101 A will may be only one of the documents you need—and one factor to consider—when it comes to managing your estate.