Did you have to pay back some of the PTC Premium Tax Credit when you filed your 2015 taxes? This was likely due to you earning more money in 2015 than you estimated when you filed for your health care coverage via the marketplace at healthcare.gov. You can use this calculator to see how income changes will affect your PTC Premium Tax Credit and use it to avoid paying a larger amount when you file 2016 taxes.
Sincerely,
