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 Keep Your Umbrella Handy Umbrella liability can be a fairly inexpensive way to help shelter current assets and future income from the unexpected. Global and International Funds Investors seeking world investments can choose between global and international funds. What's the difference? Long-Term-Care Needs Determine your potential long-term care needs and how long your current assets might last.