Welcome to the Community, omar9.

You got me here to help you with adding an accountant in QuickBooks Online. The process can be done in a few steps. Please note that only Master Admin can invite accountant users. Let me show you how:

1. Go to the Settings icon and select Manage Users.
2. Select Accounting firms.
3. Enter your Accountant's email address.
4. Click Invite.

Your accountant will then receive an email link with instructions to access your company files.

For more information, please check it here.

Using the instructions above, you're now able to add your accountant.

You can also read this article about managing accountant users in QuickBooks Online for our reference.

Please let me know if you have any other related concerns. I'll be happy to keep helping.