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 Behavioral Finance An amusing and whimsical look at behavioral finance best practices for investors. Saving Early & Letting Time Work For You The earlier you start pursuing financial goals, the better your outcome may be. A House Divided By understanding a few key concepts during a divorce, you may be able to avoid common pitfalls.