Tax Freedom Day Assess how many days you'll work to pay your federal tax liability. 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 The Lowdown on Those Free Credit Scores What’s the deal with your yearly free credit report? Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. Changing Unhealthy Behaviors Five phases to changing unhealthy behaviors.