The Internal Revenue Service is having just as much trouble deciphering the Affordable Care Act as the general public. The legislation levies a 2.3% tax on medical device companies, but the IRS reports that it believes it is only collecting 76% of tax owed because of the difficulty of identifying which medical device manufacturers registered through the FDA are actually subject to the tax. The struggle is only compounded by the audit discrepancies the in device companies' filings that added up to a whopping total of $117.8 million. Story