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 What You Need to Know about Tax-Loss Harvesting While tax-loss harvesting won't eliminate your taxes, it may offset what you owe on your taxable investment accounts. Disability and Your Finances In the event of an unforeseen accident or illness, disability insurance may be a good way to protect your income and savings. Paying Off a Credit Card Enter various payment options and determine how long it may take to pay off a credit card.