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 Choices for Your 401(k) at a Former Employer Individuals have three basic choices with the 401(k) account they accrued at a previous employer. The Junk Drawer Approach to Investing It's easy to let investments accumulate like old receipts in a junk drawer. Retiring Wild: National Parks and You Get ready to enjoy America’s national park system with this helpful article.