I think I may have finally figured out how this works, at least for me in online Turbotax Premier. My situation is a single member LLC with S-corp election and health insurance being purchased through an exchange - paid personally by myself.
In order to get the self-employed health insurance deduction to come out properly on line 16 of Schedule 1 I did the following:
1) Go into the associated K-1 and get to the page and "Other Situation" page and check the box for "I personally paid health insurance and/or long-term care insurance premiums for myself and my family and this S corporation paid me wages."
2) By checking that box the "Self-Employment Health Insurance" page will come up next. There are two boxes here - one for "Medicare Wages" and another for "Health Insurance Premiums You Paid Personally". Only fill in the Medicare Wages box. This now allows the health insurance premiums from the 1095-A to flow through. If you fill in the "Health Insurance Premiums You Paid Personally" it will overstate the deduction. Hit continue and your refund will be recalculated using the deduction based on the 1095-A.
Just to be sure check line 16 of Schedule 1 - it should now be filled in properly. At this point it is interesting to note that if you go back to the associated K-1 and get to the page and "Other Situation" page and look at the check the box for "I personally paid health insurance and/or long-term care insurance premiums for myself and my family and this S corporation paid me wages." - it is NOT checked anymore. I am guessing it got unchecked when no value was put in the "Health Insurance Premiums You Paid Personally" box on the next page. But it seems like it needed to be checked initially in order to bring up the next page so the "Medicare Wages" could be filled in.
The design seems kind of confusing but I think I am good to go now. I wanted to pass this on in case it helps anyone. And of course, if anyone has any further insight, I am interested to hear back.
