If you are using TurboTax CD/Download and you purchased the upgrade, your product should display TurboTax Home & Business on the upper left corner of the screen when you open the program.
To start a new tax return, select File > New Tax Return in the upper left corner. To delete an existing .tax data file, please
review the following link(s) and the link(s) embedded on the webpage(s)
for more information:
