The default quota for most users is currently set to 100 GB. For a limited time (until 1st August 2026) you can use the Increase Storage Quota for OneDrive for Business service request available to ask for a higher quota on approval by your local IT support staff, which will be granted incrementally through the following quota tiers:
On 100GB > Move to 300GB
On 300GB > Move to 500GB
On 500GB > Move to 1TB
1TB increases will be applied from thereon up to a service limit of 5TB, but all requests will be assessed on current use. If you are using less than 80% of your storage or if you are already using 5TB, your request will be rejected and cancelled.
All requests will be assessed and considered by IT Services and final approval rests with the Service Sponsor.
Please read Using OneDrive for Business and OneDrive for business - housekeeping before completing the quota request form.