How can i add someone to my acct to do there taxes it says you can add up to five

[SweetieJean]

That is only for TT Desktop (CD/download).

You are asking from TT Online (web), which is only good for one return per account.

[corenaann83]

can you send me in the wright spot to where i can do more ?

[VolvoGirl]

The Online version is only good for 1 return. But you can use the same email address for 5 accounts.  To do another return you have to set up a new account and new user name and pay any fees again. So if you have more than 1 return to do it might be better to buy the Desktop program.  And Desktop has more features.

How to start another return in the Online version

https://ttlc.intuit.com/replies/3288574 

Do you want to buy the Desktop program?  You can buy it here, (or check in the stores for sales or Amazon,etc.)
https://turbotax.intuit.com/personal-taxes/cd-download/