The owner is the S-corp that files the 1120-S.
My main confusion is exactly how to report the LLC's income/expenses on the 1120-S.
I've seen people say income from the LLC gets reported on the "Other income" line of the 1120-S, which sounds to me that then the LLC expenses would be reported on the "Other expenses" line of the 1120-S.
I've also seen an example where someone put the LLC's net profit in the "Other income" line of the 1120-S.
I'm also seeing people say to add income/expenses as if they were income/expenses of the S-corp, which I would take to mean the LLC's income and the S-corp's income are added together and the combined amount gets reported on "Gross receipts" line of the 1120-S. And the equivalent with expenses, e.g. combine advertising from the 2 companies and put it on the "Advertising" line, combine wages for the 2 companies and put it on the "Salaries & wages" line.
Which is it?
