Deductions & credits

yes, I reviewed the thread. Still not clear.

I had balance due for 2019 taxes, and I included that into calculation.

TT was 40 more, but now that I'm redoing calculations, it's actually $4 less, so at least it's closer, but still not clear why it's different. 

 

But on the other hand, instead of subtracting points for paid off mortgage (which I couldn't deduct on federal), TT added it to column C of CA Adjustments for Residents as an addition and it actually works against me. I find it that every year I have to go manually through all the forms to make sure it's doing the right thing, and have found errors. Is that everyone's experience?