How to Manage Microsoft 365 Admin Accounts, Licensing, and Billing
Question details
The user needs to understand how to handle an initial onmicrosoft.com admin account versus a business-domain user, and how license assignments impact billing.

- Product
- Microsoft 365
- Device & OS
- not provided
- Scenario
- Configuring admin and user accounts in Microsoft 365 and understanding the billing implications for different domain accounts.
- Observed behavior
- Unsure if admin accounts must be merged with business accounts and how to avoid paying for both if only one active software license is required.
Ensure you have Global Administrator privileges to access the Microsoft 365 admin center and make changes to user licenses and billing configurations.
Review and Reassign User Licenses
Manage your subscriptions efficiently by ensuring paid licenses are only assigned to active business-domain users.
In Microsoft 365, billing is typically based on the number of licenses purchased and assigned, not the number of user accounts. An admin account using the default onmicrosoft.com domain does not strictly need to be merged with a business-domain user. You can simply remove the paid license from the admin account if it does not require Office software, and assign that license to the actual business-domain user.
Go to the Microsoft 365 admin center and log in with your administrator credentials.
On the left-hand navigation menu, click on 'Users' and then select 'Active users'.
Select the original onmicrosoft.com admin account. In the flyout pane, click on the 'Licenses and apps' tab, uncheck the Microsoft 365 license to remove it, and save your changes.
Select the business-domain user account from the list. Under the 'Licenses and apps' tab, check the appropriate license to assign it to this user, then click 'Save changes'.

Contact Microsoft Support for Account Recovery or Billing
If you have complex domain merging requests, data-protection issues, or billing discrepancies, direct support is required.
Switch to WPS Office for Simplified Licensing and Billing
Tired of complex Microsoft 365 administration, domain configurations, and expensive per-user licensing? WPS Office provides a lightweight, highly compatible alternative with straightforward, cost-effective pricing and a robust free version.
- 1. Download the Installer: Visit the official WPS Office website and download the free installer for your operating system.
- 2. Install and Launch: Run the installer, follow the on-screen instructions, and open the application.
- 3. Open Your Files: Drag and drop your existing Microsoft Office documents into WPS Office to continue working without formatting loss.

Frequently Asked Questions
Do I need to pay for a Microsoft 365 admin account?
No, you do not need to pay for an admin account unless you assign a paid Microsoft 365 software license to it. Admin accounts can remain unlicensed if they are only used for administrative tasks.
Can I merge an onmicrosoft.com account with my business domain account?
Microsoft 365 accounts cannot be directly merged into one. However, you can add your custom business domain to the tenant, create a new user profile with that business domain, and manually transfer data or assign admin roles as needed.
How do I stop being billed for unused Microsoft 365 accounts?
To stop paying for unused licenses, you must first unassign the license from the user in the Active Users section of the admin center. Then, navigate to the Billing > Your products section to reduce your total license count so you are not billed for the unassigned license on your next invoice.




