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 8 Financial Milestone Birthdays Get ready to celebrate your financial birthdays in this informative infographic. Building a Solid Financial Foundation Sustain financial well-being or create wealth through these actions. Questions to Ask About Medicare Take the guesswork out of your IEP or SEP with this helpful article.