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 How to Read Your Credit Report Solve a mystery while learning how important your credit report is with this story-driven interactive. Budgeting After a Divorce Divorce is the second most stressful time in a person's life. Here's some tips to get through it. A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss.