Microsoft is cutting the combined OneDrive storage included with Microsoft 365 Family and Premium subscriptions, replacing the existing 1TB allowance per person with a shared 2TB pool for up to six people.
Until now, a fully shared subscription could provide as much as 6TB across six separate accounts. The new arrangement reduces that maximum combined allowance by around 67%. New subscriptions have already begun moving to the shared model, while existing customers face the change at a future renewal.
It is a substantial difference for households backing up several phones and computers, especially those storing years of photos, video and documents in OneDrive. Families using relatively little space may find the shared pool easier to manage, but heavier users should check how much storage everyone is consuming before their plan changes.
What is changing with Microsoft 365 Family and Premium?
Under the previous system, the subscription holder and up to five additional people could each use a separate 1TB OneDrive allowance. One person filling their allocation could not simply use another family member’s unused terabyte.
The new Microsoft storage arrangement combines that capacity into one 2TB allowance. All six people draw from the same pool. Someone who needs more than 1TB may now be able to use it, provided enough space remains for everyone else.
That flexibility comes at the expense of total storage. A family with six active users previously had access to 6TB in aggregate; it will now have 2TB before any eligible bonus or purchased extra storage is counted. The reduction is not necessarily 67% for every household: that figure compares the maximum combined entitlement, not each customer’s actual usage.
When do the new OneDrive storage limits take effect in the UK?
Microsoft’s dedicated storage-change guidance says new and upgraded subscriptions move to pooled storage from 8 October 2026. It also warns that upgrading an existing Family plan to Premium can bring the change forward.
For existing customers, however, Microsoft has published conflicting 2027 dates. Its UK storage quotas page says renewals from 1 April 2027 will use the shared allowance. The more detailed storage-changes page says renewal on or after 2 May 2027.
As of 12 October 2026, Microsoft’s official support pages still give conflicting renewal dates. Existing subscribers should not assume either date applies to their particular account without checking the renewal information and any notification from Microsoft. The company says affected customers will receive details before the change is applied.
Will other family members be able to see your files?
No. Combining storage does not combine people’s files, folders or mailboxes. Microsoft says each person’s content remains private unless that individual chooses to share it. A shared allowance determines how much space the household can use, not who gets access to the contents.
What happens if the household already uses more than 2TB?
This is the most important question for families that make extensive use of OneDrive. Microsoft says some existing Family and Premium subscribers in eligible markets may receive additional transitional storage at renewal, without an extra charge. The precise allowance and eligibility should not be assumed until the account holder receives confirmation.
Where an account exceeds its applicable storage entitlement, Microsoft warns that new OneDrive uploads, edits and synchronisation can stop. Existing files remain available to view or download but become read-only while the account is over quota. Outlook.com may also be unable to send or receive emails if the relevant cloud-storage quota is exceeded. These restrictions apply when storage use exceeds the actual allowance, rather than simply because the subscription model has changed; files are not automatically deleted at the moment of transition.
Customers needing more capacity can purchase extra storage, which Microsoft says is added to the shared pool. Its support pages describe options to extend Microsoft 365 storage up to 10TB, although households should check the current UK pricing and eligibility within their account rather than assume a particular upgrade cost.
Microsoft also warns that accounts remaining over their OneDrive storage allowance may be frozen after three months, with files potentially deleted after six months. These consequences are not immediate effects of the subscription change, but they make it important to resolve any storage shortfall.
How to check your OneDrive storage and renewal date
- Sign in through the official Microsoft OneDrive sign-in page with your personal Microsoft account and open Manage storage to review your current usage.
- Ask the other people sharing your Microsoft 365 plan to check their own storage usage too, so you can understand the household total.
- Open Microsoft Services & subscriptions to find your plan and its next renewal or billing date.
- If usage is high, review large files, backed-up video and photos, and items in the OneDrive Recycle Bin before deciding whether more storage is needed.
- Watch for Microsoft’s account-specific email or renewal notice explaining when pooled storage will apply and whether bonus capacity is available.
The changes affect Microsoft 365 Family and Premium. Microsoft 365 Personal continues to have its own 1TB allowance, while Microsoft 365 Pro is moving to a separate 5TB shared-storage model with a different transition schedule.
Tech Torque Verdict
A pooled allowance solves one frustration with the old plan: unused space is no longer trapped in a family member’s individual 1TB allocation. But cutting the maximum combined entitlement from 6TB to 2TB is a considerable trade-off, particularly for families using OneDrive as their main photo and PC backup service.
Microsoft needs to make the transition date unambiguous and tell subscribers clearly what happens if their household exceeds the new limit. For now, UK customers should check their combined storage usage and renewal details rather than wait until synchronisation becomes a problem.
