there's no way to know. in some case one bank will buy mortgages from another bank in which case there is separate reporting by the two banks. at other times one bank will take over another. here either scenario is possible - one 1098 for both or separate. if you have monthly mortgage statements look at them to see if the interest reported seems reasonable for the whole year.
another possibility is to take your mortgage payments for the year suntract the amount that went to escrow if any and the subtract the difference between your mortgage balance at the start and end of the year........these would be principal payments so the remaininder would be interest
still another option is to use the IRS website to obatin an account transcript. if there are two 1098s both should be on file with the iRS.
