The same e-mail address can be used for multiple DIFFERENT account ID's. If you need (or try) to prepare more than one return you MUST create a new user ID/account and pay for EACH return -if you want to use the on-line version. If you are using the On-Line version, one of the features is that the user ID/account can be used for ONE and only one tax return -e-filed or printed/mailed. You appear to be using TTax On-Line -NOT the downloaded desktop version that is installed on YOUR computer.