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 Personal Finance Tips for Military Families Military families face unique challenges, making personal finance even more critical. To Buy or Not to Buy The decision whether to buy or rent a home may have long-term implications. Understanding Extended Care Understanding the types of extended care services—and what those services could cost—may be critical.