Thanks for taking the time to reach out to the QuickBooks Community. Let me help share some details about the location feature in QuickBooks Online (QBO).
The location tracking feature in QBO is used only to categorize data from different locations, offices, regions, outlets, or departments of the same company. When importing payroll file, only the employee's information will be imported into QBO. You can set up multiple work locations and assign them to your employees.
Here's how you can set up multiple locations for your employees:
Select the Gear icon on the Toolbar.
Then Payroll Settings.
Choose Add Locations.
Type in the Location name, Address and Phone number.
After you've set up new work locations you can assign employees to them:
From the left menu, select Employees.
Add a new employee or edit an existing employee from the list.
Select the Employment tab.
From the Location drop-down (in the Job info section), select the employee's work location.
Also, there isn't an option to assign a location to an account number to set up multiple accounts as of the moment. For additional reference, you can check these articles to learn more about the location tracking feature: