By Caitlin Owens
March 29, 2015 Taxes are unpopular. Obamacare is contentious. And the two in tandem promise to make for a political maelstrom, especially come April—when taxes are due and last-minute filers start to see their results.

This year’s deadline, however, is likely to be especially contentious. Last year, 2014—whose tax bills are now coming due—saw the implementation of the individual mandate, the part of the Affordable Care Act that (generally) requires people to have health insurance or pay a penalty.

With added unfamiliarity to an already complex process, filers whose returns are affected by Obamacare may be in for unexpected results, whether a surprise bill or a surprise refund.

As with any event associated with the health care law, rival spin machines will go into full effect, with Republicans highlighting horror stories while Democrats spotlight the law’s biggest beneficiaries. But the real-life impacts of the law are far more nuanced. Indeed, despite all talk of how much Obamacare would cost taxpayers, the reality is that a large percentage of the uninsured are exempt from penalties.