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 Who Is Your Trusted Contact? This investment account question is vital and answered as early as possible. When Life Insurance Becomes Taxable Life insurance proceeds are generally tax-free. But not in all cases. Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns.