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 What Is My Current Net Worth? Use this calculator to estimate your net worth by adding up your assets and subtracting your liabilities. Medicare Advantage 101 Overview of Medicare Advantage, what’s in them, special rules, and more. Catch-Up Contributions Workers 50+ may make contributions to their qualified retirement plans above the limits imposed on younger workers.