Only the Intuit Pro Series can provide e-filing of more than 5 federal tax returns.
See this TurboTax support FAQ for information on the Pro Series - https://ttlc.intuit.com/community/choosing-a-product/help/what-is-proseries-what-is-lacerte/01/25991
See this TurboTax support FAQ for e-filing using the TurboTax desktop CD/Download editions - https://ttlc.intuit.com/community/e-file/help/how-many-times-can-i-e-file-using-the-turbotax-cd-down...
