I don't work for TT. Who told you that Premier would prepare a k-1? To be able to prepare a k-1 you need TT Business Edition. TT Premier will help you report a K-1 on your personal return during the k-1 income interview which you can find by going to the search box and typing k-1 and selecting appropriate box and jumping to that area of the interview.
The Business Edition can only be installed on a Windows based personal computer, not on a Mac or online. The Business Edition cannot complete a personal tax return. The Business Edition can be found here https://turbotax.intuit.com/small-business-taxes/
**I don't work for TT. Just trying to help. All the best.
***Say "Thanks" by marking as BEST ANSWER and clicking the thumb icon in a post and that I solved your question
**Mark the post that answers your question by clicking on "Mark as Best Answer" I am NOT an expert and you should confirm with a tax expert.