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 Choosing a Business Structure Entrepreneurs all face the same question, “Which business structure should I adopt?” Changing Unhealthy Behaviors Five phases to changing unhealthy behaviors. 6 Money Conversations to Have in a Long-Term Relationship Establish a strong financial foundation for your future by discussing these important issues with your partner.