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 Disability Income This calculator estimates your chances of becoming disabled and your potential need for disability insurance. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. Historical Inflation This calculator shows how inflation over the years has impacted purchasing power.