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 Dreaming Up an Active Retirement When you retire, how will you treat your next chapter? What to Do When You Lose Your Wallet Ever lost your wallet? Frustrating. Here’s what you can do to keep yourself safe. Pickleball in Retirement Learn about the latest sport to sweep the nation with this informative article.