I had health insurance through the healthcare dot gov and it is subsidized. So, you make a certain payment based on your annual income. Then, when you file your income taxes, the IRS says, oops, looks like we overcompensated on the subsidy and you get to pay it back.
In addition if you have medicaid, it doesn't help to deduct that but at the same time, you cannot take withholding out of SSA benefits and have it lower the Medicaid co-pay, which is net of SSA - Medicare B - $75
Government sucks.