Investors & landlords

@TaxLu 

OK ... let's start with the sale.   In the year you sold this item did you report it on a form 6252 as an installment or did you report the sale in full on that tax return?     Are you reporting the sale over multiple tax years ?

Now since you are using a processing company you will enter the interest earned  in some way ... either in the 1099-INT section   OR  in the 6252 section of the program but not both.  READ the screen instructions ...