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 Question Thank you! Oops! Related Content The Average American Budget Learn about the average American budget in this fun and interactive piece. Helpful Retirement Strategies for Women Learn how to address the challenges that women face when planning for retirement. Emerging Market Opportunities What are your options for investing in emerging markets?