SharePoint vs OneDrive in 2026: me, team or conversation?

OneDrive is personal storage for one person's work files; SharePoint is shared storage and sites for teams and the whole organisation; Teams is where conversations happen, and its files live in SharePoint and OneDrive. The rule that saves most headaches: store anything a team needs after someone leaves in SharePoint.

All three products come with most Microsoft 365 business plans, and they share the same storage technology underneath, which is why the line between them gets blurry. Most comparisons stop at "OneDrive is personal, SharePoint is shared". That is right, but it skips the rules that cause real problems in 2026: Microsoft's own limit on what OneDrive is for, the storage pools, where Teams quietly puts files, and what happens to a leaver's OneDrive once their licence is removed. Every limit below comes from Microsoft Learn or Microsoft Support and was checked on 23 October 2026.

How do SharePoint and OneDrive compare at a glance?

Sources: OneDrive service description, SharePoint limits, File storage in Teams and Unlicensed OneDrive accounts, read 23 Oct 2026.

Is OneDrive part of SharePoint?

Technically, yes. Each OneDrive is a personal site running on the same SharePoint platform. That is why the two share features such as version history, sharing links and sync. But they are licensed, governed and owned differently, and Microsoft draws a firm line on what OneDrive should hold. The OneDrive service description says that using OneDrive for storing "departmental and organizational level data, is not supported". In other words: OneDrive is not a shared drive, however convenient it feels.

What are the SharePoint and OneDrive storage limits in 2026?

The two products draw on separate storage allowances.

Two practical points follow from this:

• SharePoint storage is pooled. Every site draws from the same tenant allowance. A few large project archives or video libraries can use up the pool for everyone, so set site storage limits and review the largest sites.
• When storage runs out, sites go read-only. People can still open files, but they can't save new ones until space is freed or more storage is bought. Watch usage in the SharePoint admin centre before you reach the limit.

Storage is not a reason to put team files in OneDrive. It may look as though each person's 1 TB is "free" space compared with the shared pool, but the governance cost comes later, when someone leaves.

Where do Teams files go?

This is the part most people get wrong. Teams does not have its own file store. According to Microsoft Support:

• Chats: "Files you send in chat are stored in your OneDrive for Business." The file sits in the sender's OneDrive, shared with the people in the chat.
• Standard channels: "Files you upload to a channel are stored in your team's SharePoint folder."
• Private and shared channels: Microsoft Learn's Teams-connected sites page says "Each private channel has its own SharePoint site", and shared channels work the same way, so their files live outside the main team site.

The same page notes that "A Teams-connected site is created automatically whenever you create a team." So every new team creates a new SharePoint site, which is one reason SharePoint estates sprawl quickly.

The practical consequence: if a project's key files are shared mostly through chat, they live in individual people's OneDrives. When one of those people leaves, the files follow the leaver rules below. Share important files in a channel, not a chat.

What happens to OneDrive when someone leaves?

When a user's licence is removed, their OneDrive becomes an "unlicensed account". Microsoft's unlicensed OneDrive accounts policy (ms.date 26 August 2026) sets the timeline:

The page describes the accounts as going into "read-only mode after 60 unlicensed days and archived after 93". The USD figures are Microsoft's list rates as shown on that page; check them in your own currency and agreement before you budget.

What to do about it:

1. Move team files out before the licence goes. Make "move shared files to SharePoint" a step in your leaver checklist, owned by the line manager.
2. Use OneDrive access delegation. Give the manager access to the leaver's OneDrive so they can move what matters.
3. Set retention policies deliberately. If you must keep content for legal reasons, use retention policies rather than leaving accounts unlicensed indefinitely.
4. Audit unlicensed accounts monthly in the admin centre, so nothing slides into archive billing by accident.

Most of these problems disappear if team content lives in SharePoint from the start.

SharePoint vs Teams: which should hold your documents?

Asking "SharePoint or Teams?" is a slightly misleading question, because Teams channel files already live in SharePoint. The real question is where people should work with them.

A common pattern is to give each team a Teams workspace for daily collaboration, and to publish finished, organisation-wide content to a SharePoint communication site or intranet. Pin the relevant SharePoint pages and libraries as tabs in Teams, so people don't have to switch apps.

SharePoint also does much more than store files. It runs intranets, lists, document management and business workflows, which is why the 2026 retirements matter. Microsoft Support says SharePoint 2013 workflows were "fully retired as of April 2, 2026". If an old approval process stopped working this year, that is the likely reason; most organisations rebuild those processes in Power Automate.

Which should you use when?

If you only remember one line: OneDrive for me, SharePoint for us, Teams for talking about it.

How do sharing and permissions differ?

The products feel similar when you share a single file, but they behave differently once a team grows.

• OneDrive sharing is personal. The owner decides who sees each file or folder, usually with a sharing link. That is fine for a draft sent to two colleagues. It becomes a problem when dozens of team files are shared one by one from one person's OneDrive: nobody else can see the full picture, and access depends on that person's account.
• SharePoint sharing is structural. Access is normally granted at site or library level through Microsoft 365 groups, so joining or leaving the team changes access in one place. You can still break inheritance for a sensitive folder, but it should be the exception.
• Teams follows membership. Adding someone to a team gives them the channel files in its SharePoint site. Private and shared channels have their own sites, and therefore their own membership.
• External sharing is set per site. Admins can allow guests on a client-facing site while blocking them on HR or finance sites. Decide those rules before you migrate, not after.

The governance rule is simple: if you find yourself managing access to a folder person by person, the content probably belongs in a SharePoint site with group-based permissions.

How do you move files from a file server or another cloud?

Many organisations reach this question while leaving a file server, or Google Drive, Box or Dropbox. Microsoft's Migration Manager (ms.date 29 April 2026) migrates from file shares and from other clouds, including Google Workspace, Box and Dropbox, into Microsoft 365.

The tool moves files. It does not decide where they should go. Before a migration:

1. Inventory the source. List shares, owners, sizes and the age of the content. Archive or delete what nobody has opened in years.
2. Design the target. Decide which content becomes SharePoint sites, which becomes Teams, and which goes to personal OneDrives. Use the decision table above.
3. Map permissions. File-server permissions are often a tangle of individual grants. Rebuild them around groups and sites rather than copying them as they are.
4. Watch the limits. Check large files against the 250 GB upload limit and large libraries against your tenant pool.
5. Run a pilot. Migrate one department first, collect feedback, then schedule the rest in waves.
6. Train people on the new rule. The migration fails if people keep saving team files to OneDrive afterwards.

How can Elgrith help?

Elgrith has delivered 1,000+ projects for 250+ clients since 2015, from our New Delhi headquarters and client centers in New York, London and Shanghai. Our SharePoint consulting team designs information architecture, builds intranets and runs migrations from file servers and other clouds. When retired SharePoint 2013 workflows or InfoPath forms need replacing, our Power Apps development team rebuilds them on Power Apps and Power Automate. For day-to-day Microsoft 365 administration, see our IT services, and for wider moves to the cloud, cloud migration. You get a fixed written quote after a free call. Book a call or start a project.