How to Add More SharePoint Storage for an Organization in Microsoft 365
Question details
The organization needs to increase its available SharePoint storage capacity after reaching the default Microsoft 365 storage limits.
- Product
- Microsoft 365 / SharePoint
- Device & OS
- not provided
- Scenario
- The organization's SharePoint site collections have hit their storage capacity, and an administrator needs to buy additional space.
- Observed behavior
- The goal is to navigate the Microsoft 365 admin center to successfully purchase the 'Office 365 Extra File Storage' add-on.
Ensure that you are signed in with an account that has Global Administrator or Billing Administrator privileges in the Microsoft 365 admin center, as standard users cannot authorize storage purchases.
Purchase Extra File Storage via Microsoft 365 Admin Center
Use the billing section of your Microsoft 365 admin center to buy additional gigabytes of storage for your SharePoint environments.
If your base subscription is eligible, you can seamlessly expand your tenant's capacity by purchasing the Office 365 Extra File Storage add-on.
Log in to the Microsoft 365 admin center using your administrator credentials.
On the left navigation menu, select 'Billing' and then click on 'Purchase services'.
Use the search bar or browse the catalog to find the 'Office 365 Extra File Storage' add-on.
Select the required amount of additional storage in gigabytes, add it to your cart, and complete the checkout process to apply it to your tenant.
Looking for a cost-effective document collaboration alternative?
While SharePoint serves as enterprise-grade storage for large Microsoft 365 deployments, individuals and teams looking for a lightweight, free, and collaborative office suite can try WPS Office. It provides powerful document editing and built-in cloud storage without the heavy subscription fees.
- 1. Visit the WPS Office website: Go to the official WPS Office website on your computer or mobile device.
- 2. Download the installer: Click the 'Free Download' button to get the correct version for your operating system.
- 3. Install and collaborate: Follow the installation prompts, create a free account, and immediately start creating and sharing documents via WPS Cloud.

Frequently Asked Questions
Who has the permission to buy extra SharePoint storage?
Only users assigned the Global Administrator or Billing Administrator role within your Microsoft 365 tenant can purchase the Office 365 Extra File Storage add-on.
Why can't I find the Office 365 Extra File Storage option?
If you cannot see this add-on in the 'Purchase services' section, your current base Microsoft 365 subscription might not be eligible for extra storage purchases, or you may lack the required admin permissions.
How is the newly purchased SharePoint storage applied?
Once the checkout is complete, the extra storage is added to your tenant's total pool. You can then allocate this space by adjusting the maximum storage limits for individual site collections in the SharePoint admin center.




