From the form's instructions:
Use Form 1098, Mortgage Interest Statement, to report mortgage interest (including points, defined later) of $600 or more received by you during the year in the course of your trade or business from an individual, including a sole proprietor.
A loan to a corporation? A loan to an LLC? Neither is subject to information reporting. It's the individual's SSN or its nothing.
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In this world you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant.