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 Net Unrealized Appreciation (NUA) Explained Have you considered the special tax treatment on company stock held in a 401(k) plan? A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss. Inflation & Your Money It's important to understand how inflation is reported and how it can affect investments.