@DoDesign wrote:
Why is this the case? Am I doing something wrong?
No, you're not doing anything wrong.
The figure in Box 1 of your K-1 represents your share of the ordinary income from the business activities of your corporation and is taxed as such. You should see the same figure on Line 5 of your Schedule 1 (1040), which will wind up on Line 8 of your 1040.
Note that although the amount is taxed as ordinary income, it is not subject to self-employment tax (FICA) as is the salary/wages on your W-2.