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 Disability and Your Finances In the event of an unforeseen accident or illness, disability insurance may be a good way to protect your income and savings. What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability. Bull & Bear Markets: A Timeline This helpful infographic will define bull and bear markets, as well as give a historical overview.