The pop up box for "What if I don't have a 1098 says "That’s OK. You can get your mortgage info by going to your lender’s website. Other documents, like your monthly mortgage bills and your Closing Disclosure (or HUD-1), will also have some of this info.
Your lender should send you a 1098 by January 31, so if you haven’t received one by then, contact them."
It is instructing you to enter the information that you have into the form.
