Can you have more than one access to 1 account, as I would like to add my business partner to my account

Glad to see you here in the Community, @lhconservices-gm.

I want to ensure you're able to add more users to your account.

Users can be added to QuickBooks Online to assist with bookkeeping. You can assign particular rights to each user for specific tasks. The number of users you can add is determined by your subscription level. This article will show you how to add or edit users in QuickBooks.

Here's how to invite a new user:

1. Go to Settings ⚙, then choose Manage users. If you can’t select this, you don’t have permission to manage other users. Contact an admin user for help.
2. Click on Add user.
3. Choose the user type you want to create. 
4. Fill in your new user’s name and email address, then hit Save.

There you go! 

Quickbooks-email@intuit.com will send an email to your new user right away. It features your company's name as well as a message that reads, "Ready to get started?" Let's go!"

Select the "Let's go!" link in the email to take your new user to a sign-in or account creation page. To create a new account, they must sign in or provide information.

For more information on how to handle users in QBO, see this: Add and manage users in QuickBooks Online.

Just comment back to this thread if you have other questions about this matter or with QuickBooks. The Community has your back always. Have a good one!