1040, 1040A, 1040EZ, Schedule C, Schedule B, 1099, W-2…doing taxes is like trying to speak a foreign language that you've never taken a course in. Given how complicated the tax code is, it's not surprising that people mess up when filing their returns—and those mistakes can cost people thousands. As a Certified Public Accountant with his own boutique firm, Gary Craig has seen it all. He shares some of the most common tax blunders that he witnesses to ensure that your own filing goes smoothly. More »