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 You May Need to Make Estimated Tax Payments If… Have income that isn’t subject to tax withholding? Or insufficient withholdings? You may have to pay estimated taxes. Your Changing Definition of Risk in Retirement A change in your mindset during retirement may drive changes to your portfolio. Healthcare Costs in Retirement Without a solid approach, healthcare expenses may add up quickly and potentially alter your spending.