Education

My son received a scholarship in January 2019 which also paid all his tuition ( and a bit more) for the spring 2019 semester. The 1098-T shows only the scholarship in box 5 and box 1 is empty. This was his final semester before graduating.  I have all the bills showing the scholarship and tuition were paid in January 2019. (Tuition was billed in 2018.) Can I use the bills as the basis for determining the taxable scholarship income?