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 When Does Your Personal Car Become a Commercial Vehicle? At what point can you call a personal vehicle commercial? Should I Accept a Free Credit Lock? Learn the ins and outs of credit locks, freezes, and more. Life and Death of a Twenty Dollar Bill How long does a $20 bill last?