Hello WHBA,
Welcome to the QuickBooks community page. It's a great idea to work closely with your accountant and make sure everything is in order. That being said, inviting an accountant to your QuickBooks Self-Employed account is not an integrated feature of the system.
For your reference, you can contact the dedicated QuickBooks Self-Employed support team here if you have any other questions or require support with your account: https://help.quickbooks.intuit.com/en_CA/contact. If you don't see the QuickBooks Self- Employed tab, change the selection from the drop-down menu in the top right corner of the page.
Have a great day.