Each year, the U.S. Small Business Administration recognizes the contributions of small businesses to the success of the economy. This week, National Small Business Week is May 23-29.

Small business owners and individuals who are self-employed have lots of questions and concerns about taxes. The IRS Tax Calendar has a wealth of tax tips, contact information and handy schedules. The IRS Small Business and Self-Employed Tax Center has links for everything from publications and forms to helpful newsletters.