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 What To Do When Your Income Reaches 7 Figures Preserve your high net worth with these foundational tips. The Great Debate Continues: Active vs. Passive In investments, one great debate asks the question, “Active or Passive Investing: Which Is Better?” Countdown to College Preparing for college means setting goals, staying focused, and tackling a few key milestones along the way.