Now I have three person have the access to my quickbook online account if I plan to add one more person do I have to pay extra?

Hello embeducationcorp,

Welcome to Community!  I can understand your concern with QuickBooks Online subscription fees, when additional users are needed.  I would be happy to provide some insight here!

With QuickBooks Online Easy start, you're able to have one user and two accountant users.  However, QuickBooks Online essentials enables you to add up to three users on your account.  If you're currently subscribed to QuickBooks Online Plus, you can have up to five users, along with two accountant users.  To review and manage your subscription click here.

If you have any other questions, feel free to reach out again.  We would be glad to help!