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 Dreaming Up an Active Retirement When you retire, how will you treat your next chapter? Coaches Coaches have helped you your whole life, in ways big and small. We'd like to be one of them. Saving Early & Letting Time Work For You The earlier you start pursuing financial goals, the better your outcome may be.