There are potentially many reasons for this discrepancy. First, the amount in Box 1 only represents amounts paid for qualified tuition and related expenses (QTRE) and does not include payments made for room and board, insurance, health service fees, or parking which, though important, are not considered mandatory education expenses for tax purposes. Secondly, Form 1098-T reports amounts that the student paid in a certain year, and the pay date does not necessarily correspond to the dates that the classes were attended. For example, tuition for the Spring semester is typically billed in the prior year so a student may have paid tuition for the Spring semester in November even though classes don’t start until January. The best and most accurate source of information about the amounts that you paid for qualified tuition and related expenses will be your Fee Bills.