Which box, in Turbotax Self-Employed, do I put the dollar amount from line 12 of my K-1? Section 179 Deduction from 2021 or Section 179 Deduction Carryover from 2020?

Can you clarify if your K-1 is from Form 1065 or Form 1120S?

My apologies. The K-1 is from 1065.

To enter a Form K-1 from Form 1065 in TurboTax Online:
 

1. Click on Federal on the left toolbar
2. Click on Wages and Income on the top 
3. Scroll down to S-corps, Partnerships, and Trusts and select Show More
4. Click on Start or Revisit for Schedule K-1
5. It will ask you to select if it came from a Form 1065, or another form.
6. When you proceed it will come to a screen and ask you to check which boxes on your Form K-1
7. Just be sure you click box 12 and it will give a dialog box for depreciation entries.