If your tax return is based primarily on the W2 form you get for wages, tips and salary from your employer, there's not much wiggle room. You can take the deductions you're entitled to, but chances for savings are slim. 

That's not the case for big corporations, though. Allan Sloan, senior editor-at-large for Fortune Magazine and frequent Marketplace contributer, talks to host David Brancaccio about how our strange U.S. tax code makes it possible for some companies to legally avoid paying hundreds of millions of dollars. 

Follow David Brancaccio at @DavidBrancaccio