SharePoint Storage – Limits, Pricings, and Tips


Have you ever wondered why your SharePoint Storage doesn’t lower after deleting some files? Or why your SharePoint Storage is already full even though the site metrics tell something else? SharePoint online is great, but it can be a bit confusing sometimes how the SharePoint storage limits work.

One thing you really should keep in mind is that your SharePoint sites will go into a read-only mode when your SharePoint storage is full. So extending the storage in time is really important.

In this article, I will explain how the SharePoint storage quota works and what counts towards the quota. But also how you can free up storage space immediately and what extra storage will cost (and how to apply it, because that isn’t straightforward either.. )

SharePoint Storage Limits

So, let’s first start with the SharePoint storage limits. How much storage do you actually get with Microsoft 365? The answer is pretty simple: per tenant (organization), you will get 1TB of storage plus 10GB per license.

1TB + (10GB x Number of Licenses) = Total SharePoint Online Storage

For example, if you have 50 users with each an Office 365 Enterprise E3 license, plus 5 Exchange Online Plan 2 licenses for a couple of mailboxes, then you will get a total of 1,55TB of storage.

You can increase this storage to 25TB per site. To be clear, you will have to buy additional storage space and the 25TB limit is per SharePoint site, so the tenant self isn’t limited.

Besides the available storage space, there are other limits as well.

  • 2 million sites per tenant
  • 250 GB Maximum File Size
  • 30 million files and folders per library
  • 50,000 major versions and 511 minor versions of a file

OneDrive storage

Important to know is that the OneDrive storage of your users isn’t included in this storage limit. Each user gets 1TB of storage by default, and that can be increased to 5TB if you have more than 5 users (licenses).

If one of your users reaches the 5TB limit, then Microsoft will increase the storage to 25TB1 after you open a support case.

How is the used SharePoint Storage calculated?

This is the part that is unclear to most people: what counts towards the storage limit of SharePoint? Not only are the files counted towards the storage limits, but also the files in the first and second-stage recycle bins, the different versions of the files, and even the files that are kept based on a retention policy.

SharePoint will keep all the different versions of a file, which is great for your users, but it can hurt your storage, especially with non-office files, like Cad files.

Sharepoint Running out of Space

So, if you get a warning that your SharePoint storage is almost full, then you have two options. Buy additional storage space, which will cost $0.20 per GB per month, or clean up your SharePoint sites.

Buying additional storage space might be the easiest option, but I recommend you first check your storage usage report (admin center > Reports > Usage) to make sure this isn’t a temporary spike. This happened with one of my tenants due to an Autodesk file that grew exponentially when opened.

Before we can clean up used storage space, we will make sure that there are no retention policies applied to the SharePoint Sites. Keep in mind that the retained files also count towards the storage limit.

  • Open the SharePoint Admin Center
  • Click on Sites Active sites
  • Sort the sites on Storage Used
  • Select one of the top sites and check if a retention policy is applied:

Sharepoint Storage Metrics

I have noticed that there is a difference in the used storage between the listed storage in the SharePoint Admin Center and the actual SharePoint Storage Metrics of the site itself. As you can see in the example below, there can be a huge difference between the two.

So, to find the amount of storage a site is using, we can first look in the SharePoint Admin Center.

  1. Open the SharePoint Admin Center
  2. Select Sites Active Sites
  3. Sort the sites on the Storage used (GB) column

Adding Microsoft 365 Extra File Storage

The other option is to buy additional storage space. This is the easiest option to go for, but it can get expensive at $0.20 per GB per month.

  1. Open the Admin Center
  2. Select Billing > Purchase services
  3. At the bottom of the page, select Add-ons.
  4. Select Office 365 Extra File Storage.
  5. Choose the amount of storage and check out.

Now comes the part most people forget: you have bought the storage, but you will have to manually assign it.


The amount of SharePoint storage depends on how many licenses you have. For most organizations, 1TB should be enough. And you can always extend the storage for a fair price.

Keep in mind that your SharePoint sites will go into a read-only mode when your storage is full. So, regularly check the storage/usage reports in the admin center.

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