Form K-1 Box 5 interest income - where does it show up on 1040?

it should show up on schedule B but if the total interest income is below the threshold you'll only see a total of interest income on 1040 line 2b

I'm not sure which K-1 you're looking at, but this is how each of them is posted.

If you have a K-1 for a Form 1065 Partnership, 

• Bos 5 is labeled interest, and 
• it does get posted to box 2b Taxable Interest on your 1040.

If you have a K-1 for a for an S-Corp, Form 1120-S

• Boxes 5 a&b are dividends, and
• are posted to lines 3 a&b on your 1040.

If you have a K-1 for a Trust or Estate Form 1041

• Box 5 is Other portfolio and Non-Business income.
• It is posted to Schedule 1 line 5, and
• Line 8 Other income on the 1040

If this does not completely answer your question, please contact us again and provide some additional details.

Thanks for asking this question. I was tearing my hair trying to figure it out. It wasn't showing up and then it did as I kept looking.