I used a CPA to do my taxes in 2016 and 2017. I sold an apartment building in 2016 and another one in 2017. They both were installment sales. I would like to enter both of them in my 2018 Turbotax program for 2018 installment income. I select "Sale of Business Property" and on the next page I check both "Sales of business or rental property ..." and "Sales of real estate, cars, ...). On the next page when I enter the date in 2016 that it was sold in the "Date sold" entry, I get the message "Date sold should be a current year for property A". If I ignore the message, continue, and finish, I get many error messages.
