Thanks for the extra information. I can't tell exactly from your answer, but it sounds like you were covered year round. If that's your situation, indicate that you had covered for the year on the first page of the Health Insurance section. Say "yes" on the next screen, indicate that you got an Obamacare plan, and then enter the 1095-A information for May. TurboTax will reconcile the tax credit based on what you earned. For some they get a credit, for others they pay some of the credit back. It's how the credit works. Shouldn't be too high one way or the other for you as you only had it for one month. Hope this helps!