The authority to confiscate tax refunds, to impose fines of over $2,200 per taxpayer, and to verify whether taxpayers' health insurance coverage is "acceptable." One measure of the scope of the IRS' new responsibilities under the healthcare overhaul: The agency might have to hire as many as 16,500 additional auditors, agents, and other employees in order to administer the program, according to Rep. Dave Camp, R-Mich., the ranking Republican on the Ways and Means Committee.