Think about this for a moment

According to the print version of this Bloomberg article, every year $358 billion in taxes goes uncollected by the IRS, so "rotsa ruck" going after the so-called "deadbeats" who are to be "taxed" for not buying Obamacare insurance. And yes, do ignore the fact that many of them self-insure and are not getting health care "at the expense" of the rest of the population.
IRS is going to spend $881 million of your tax dollars over three years (who knows how much beyond that) to "enforce" compliance with this boondoggle. More IRS agents to be hired, more government proctologists poking around in your assets....

Can IRS police both taxes and health care law? - Businessweek