If you are using online TT, and you use the same online account that has been used for any past tax returns---then yes, your BF will be able to see those. if he tries. If you are keeping your past a secret, you could start a new account with a new user ID.
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-start-another-return-in-turbotax-onli...
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
