Why cant I override Schedule 1, line 29 to add my 2% health deduction

[DoninGA]

Why override?  Just go through the self-employment expense section to enter the premiums paid for the health insurance.  The program will enter the amount paid on Schedule 1 Line 29

[CJan]

That might work if I had that Self employed TT version

im not self employed but closely related to the owner and not enough EE to have group insurance- I need to override the line 16 on schedule 1–insurance  it worked in prior years

[Irene2805]

As you've discovered, TurboTax no longer allows overrides on line 16 of Schedule 1.

Did you get a K-1 from the S-Corp?  Even if you didn't, you could enter the insurance premiums on a "dummy" K-1 so that the premiums flow to Schedule 1. 

As you go through the interview to enter the K-1:

1.  On the Other Situations screen, mark the box that you paid health insurance.

2.  On the next screen, Self-Employed Health Insurance, enter the amount of premiums paid.

The premiums should then flow to Schedule 1.