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. Personal Finance Tips for Military Families Military families face unique challenges, making personal finance even more critical. How to Appeal Your Property Taxes For homeowners who think their property taxes are too high, there are ways to appeal.