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. Related Content Understanding Extended Care Understanding the types of extended care services—and what those services could cost—may be critical. Risk Perspective Is it possible to avoid loss? Not entirely, but you can attempt to manage risk. A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals.