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 Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. Term vs. Permanent Life Insurance When considering life insurance, it's important to understand your options. When Life Insurance Becomes Taxable Life insurance proceeds are generally tax-free. But not in all cases.