The lack of information makes it impossible to determine whether the IRS will have adequate workers to enforce the health care law, the Treasury inspector general for tax administration said in a report three weeks ago. The report, however, concluded that "appropriate plans had been developed to implement tax-related provisions" of the law.
In 2010, House Ways and Means Committee Republicans issued a report saying the IRS may need as many as 16,500 additional auditors, agents and other employees "to investigate and collect billions in new taxes from Americans."
That assessment has been widely cited by opponents of the law. The IRS disputes the jobs number but hasn't offered another one.
"That is a made-up number with no basis in fact," IRS spokesman Dean Patterson said in an email. "The 2012 budget calls for about 1,200 employees for the IRS to implement the (Affordable Care Act), and the vast majority of those employees are needed to build technology infrastructure to support payments like the new tax credits for individuals and small businesses."