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 Do Our Biases Affect Our Financial Choices? Even the most seasoned investors have biases affecting their financial choices. Why Medicare Should Be Part of Your Retirement Strategy How Medicare can address health care needs in your retirement strategy. Succeeding at Business Succession There are a number of reasons for business owners to consider a business succession plan sooner rather than later.