OneDrive File Issues

Microsoft 365 OneDrive Storage: Is It Per Device or Per Account?

Algirdas Jasaitis Oct 9, 2026 868 views

Question details

The user wants to know if the 1 TB of OneDrive storage provided by a Microsoft 365 subscription is allocated to each individual device or linked to the Microsoft account itself.

Does Microsoft 365 OneDrive Allocate Storage Per Device or Per Account?

Product: Microsoft 365 / OneDrive
Device & OS: not provided
Scenario: Setting up cloud storage across multiple personal devices (such as a PC, tablet, and smartphone) and managing local disk space efficiently.
Observed behavior: Clarifying the cloud storage rules to understand that 1 TB is shared across all devices signed into the same Microsoft account, and finding ways to prevent this data from filling up smaller local hard drives.

Before you start

Verify which Microsoft account is associated with your active Microsoft 365 subscription, as this is the account you will need to sign into on all your devices.

Solution 1Recommended

Access the Shared 1TB Storage Across All Your Devices

Since Microsoft 365 allocates 1 TB of OneDrive storage per account (up to six accounts for the Family plan), you must use the same login credentials on every device to access this shared pool.

Microsoft does not partition your storage by device. Whether you upload a file from your iPad, Galaxy phone, or Windows PC, it consumes space from the same 1 TB quota linked to your specific Microsoft account.

Download the OneDrive App

Navigate to the App Store, Google Play Store, or Microsoft Store on your respective device and download the official Microsoft OneDrive application.

Sign In with Your Primary Account

Launch the application and log in using the exact Microsoft account email and password tied to your Microsoft 365 subscription.

Verify Cross-Device Syncing

Upload a test file from one device and open the OneDrive app on your secondary device to confirm the file appears, demonstrating that the devices are successfully sharing the same 1 TB storage pool.

Access the Shared 1TB Storage Across All Your Devices

Storage Allocation Tip: If you are on a Microsoft 365 Family plan, you can invite up to 5 family members. Each member will get their own independent Microsoft account and their own separate 1 TB of storage.

Solution 2

Enable OneDrive Files On-Demand to Save Local PC Storage

Because all devices share the 1 TB pool, syncing everything locally to a PC with a small hard drive will quickly consume all your disk space. Enabling Files On-Demand prevents this.

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Frequently Asked Questions

Can I allocate a specific amount of my 1TB OneDrive storage to a specific device?

No, Microsoft 365 OneDrive storage is pooled per account, not partitioned by device. The 1 TB limit applies to the total data stored on that specific Microsoft account, which is equally accessible across all devices you sign into.

How do I add another person to share the Microsoft 365 Family storage?

You can share your Microsoft 365 Family subscription with up to five other people. Log into your Microsoft account dashboard, go to the 'Services & subscriptions' tab, select 'Share' under your Family plan, and send an email invitation. Once they accept using their own Microsoft account, they will receive their own separate 1 TB of storage.

Will enabling OneDrive Files On-Demand delete my files permanently?

No. When you use Files On-Demand to 'Free up space', it only removes the local copy from your computer's physical hard drive. The original file remains safely stored in your online OneDrive cloud and will appear in your folders as a cloud-only icon. It will download temporarily the next time you double-click it.

Document & File Issues