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 Insuring Your Business With a Buy/Sell Agreement It may help your business be better prepared in the event of the death of a principal or key employee. Insurance Needs Assessment: When You're Young and Single Even if you’re young and single, you should still consider protecting yourself. Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax.