CAN TWO PEOPLE FILE SEPERATE RETURNS ON THE SAME CELL PHONE?

Yes you can use the same mobile device.   You each need your own account and user ID.

 

When you use Online TurboTax, you get one return per fee.  Each return needs its own account and user ID.   If you use the same account and user ID for a second return, you overwrite the first one and lose it forever.

 

 

 

https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-start-another-return-in-turbotax-online/00/25596