Can I let family members use my Turbotax premier, which I downloaded onto my desktop, on their computer? Do they use my account to download onto their computer?

[meskinaz]

In the past I would get a CD which I would simply hand over to family members who can then do their taxes. 

[DoninGA]

You can only install the TurboTax software that you purchased on computer that you own.  Releasing the software you purchased to someone else is a violation of the End User License Agreement for the desktop software.

Go to this TurboTax website for INTUIT SOFTWARE END USER LICENSE AGREEMENT TURBOTAX DESKTOP SOFTWARE—TAX YEAR 2017 - https://turbotax.intuit.com/corp/license/desktop.jsp

You can create, complete and file a tax return for anyone you wish using the TurboTax software installed on your personal computer.   However, the software is not licensed for someone charging a fee to prepare a tax return using the TurboTax personal desktop editions software.