Double check all of the asset entry worksheets and the 6252 worksheet. I have prepared many of these in the past and have never had a problem. Although I cannot recall a balloon payment, I do not think that should be an issue. Off the top of my head: Did you allocate the sales price to each asset sold? Did you fill out the asset entry worksheets correctly? Did you link to the form 6252, all the assets sold have to be linked. On the 6252 worksheet did you enter the principal payments received in 2022 and the interest payments received in 2022?