You can not have 2 different versions of personal turbo tax loaded on the same computer. However, with the download software, you can complete as many tax returns as needed for you and your family members. You do not need to purchase 2 copies of the software. For each return, just go to the file tab and select new. Per IRS regulations you can only EFile 5 separate federal returns, but if you have more, you can just mail those. See screen shot for creating the new return
