@dk82 If I could reach through the computer screen and kiss you, I would. This is exactly the workaround I needed. It works for me (using TT Online)!
The problem apparently is that pesky "I'm self-employed and bought a Marketplace plan" box. I unchecked that box, and it still generates a Form 8962, so all good there. Then I went to Wages & Income -> Self Employment -> Add Expenses -> Health Insurance Premiums and entered the total premiums paid, which generated a CORRECT (hallelujah!) Form 7206 and restored the deduction to Schedule 1, Line 17. And it did not double-deduct. (the Turbotax warning not enter Marketplace premiums in that spot assumes you checked the "I'm self-employed and bought a Marketplace plan" box on the 1095-A page .. so long as that box is unchecked, there is apparently nothing wrong with entering it via Wages & Income -> Self Employment -> Add Expenses -> Health Insurance Premiums.) I did a side-by-side, line-by-line comparison of my prior draft return and the new draft return, and everything is now correct!
This workaround also solved another problem I had. TT was rounding each monthly premium on my 1095-A, and then adding the total of the monthly rounded premiums, resulting in a lost $3 deduction on Schedule 1, Line 17 (the amount was $3 less than the actual total annual premiums). Now that the total on Schedule 1, Line 17 is correct (with that extra $3 deduction), my total tax liability decreased by $1. 🙂
Thank you for the workaround! I can finally file my taxes, just in time.
