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 A Bucket Plan to Go with Your Bucket List Longer, healthier living can put greater stress on retirement assets; the bucket approach may be one answer. How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits. What You Should Do About Insurance Following a Divorce In the face of divorce, making changes to insurance coverage may be overlooked.