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 Investments You’ve made investments your whole life. Work with us to help make the most of them. Roadmap to Retirement: Tax & Investment Strategies The journey into retirement requires a strategy. Check out these tax and investment strategies to help you grow your wealth. What Is a Roth 401(k)? Roth 401(k) plans combine features of traditional 401(k) plans with those of a Roth IRA.