How Obamacare could make filing taxes a nightmare

“This tax season will be a messy one for most of Obamacare’s 8 million enrollees.
Individuals and families who bought subsidized coverage have been receiving tax credits based on whatever amount they thought they would earn this year. Upon filing taxes, the IRS will reconcile the amount of subsidy received, based on expected income, with the person’s actual income.
That’s where things can get ugly.
If the person underestimated their income for the year — and got a higher subsidy than they actually deserved — they’ll owe the government the difference. But if they overestimated their income, and received too small a subsidy, they’ll see a bigger tax return.”