TT Deluxe. I show "single" in both interview and forms views. But TT is generating/including "empty" spouse versions of forms, such as 8889. Why is TT generating them?

[vial_tom]

Marital status and filing status are, and always have been, single.  Prior years TT never generated spouse forms.

[BMcCalpin]

TurboTax generates the 8889-S as a worksheet, in case it is needed.

If, at the end of the tax return processing, there are no numbers on the 8889-S, then TurboTax won't send the 8889-S to the IRS anyway.