Underneath, OneDrive and SharePoint are the same Microsoft storage technology — same sync client, same co-authoring, same versioning. Which is exactly why the difference between them is invisible until it bites. The difference is not technical. It is whose name is on the door.
The one-sentence answer
OneDrive is a person's drive. SharePoint is the company's. A OneDrive belongs to one account — one employee — and its contents follow that account's fate. A SharePoint site belongs to the organization: people are granted access and lose it, arrive and leave, and the files stay put. Every filing decision follows from that single fact.
What OneDrive is for
Personal working files. Drafts that are not ready for anyone else. Meeting notes. The spreadsheet you are experimenting with before it becomes real. OneDrive is the digital equivalent of someone's own desk drawer — useful, private, and the wrong place for anything a colleague would ever need to find.
The honest test: if you were away for a month, would someone need this file? If yes, it is not personal, and it does not belong there.
What SharePoint is for
Everything with more than one stakeholder: client folders, contracts, projects, templates, finance, HR, operations. SharePoint organizes files into sites with their own permissions — a Finance site the whole company cannot browse, a Projects site the whole company can — and access is granted to roles and groups rather than mailed around as attachments.
And one fact that surprises most small businesses: Microsoft Teams stores channel files in SharePoint. Every team you create in Teams has a SharePoint site behind it; the Files tab is a window onto it. If your company lives in Teams, you are already using SharePoint — the question is whether it is organized or an accident.
The ex-employee trap
Here is the version of this story we get called about. A company runs for years on habit: everyone saves to their own OneDrive and shares links when asked. It works — sharing is easy, sync is invisible, nobody thinks about it. Then the operations manager resigns, their account is closed in the usual offboarding, and three weeks later somebody needs the supplier contracts. Which lived in a folder called Stuff, in a OneDrive that no longer exists.
Microsoft 365 does give admins a retention window to rescue a departed user's OneDrive, so the story usually ends in recovery rather than loss — but recovery means an admin spelunking through a stranger's folder logic under deadline, for every single departure. The private-chat variant is the same trap: files shared in one-to-one Teams chats sit in the sender's OneDrive, and evaporate with them.
Getting from here to there
- Map what exists. Whose OneDrives hold company data, which Teams grew organically, what still sits on the old file server.
- Design the sites before moving anything. A handful of SharePoint sites matched to how the business actually works — not one giant dump, not forty micro-sites.
- Move in order of risk. The files trapped in personal accounts first; the tidy shared drive last.
- Write the one rule down. "Company files live in SharePoint or a Teams channel; OneDrive is personal." One sentence in onboarding beats any policy document.
This is a contained, fixed-fee project — typically part of Microsoft 365 administration or an IT consulting engagement, and it pairs naturally with a look at whether your M365 plan still fits. Take a brief.
Frequently asked questions
OneDrive is one person's drive, tied to their account and gone with their departure; SharePoint is the company's filing system, owned by the organization and independent of any individual. Same technology underneath, opposite ownership model.
Files shared in a Teams channel are stored in that team's SharePoint site — Teams is a front door, not a third storage place. Files shared in a private one-to-one chat go to the sender's OneDrive instead, which is exactly why deal documents shared in chat vanish when the sender leaves.
Anything more than one person needs — contracts, client folders, projects, templates, finance — belongs in SharePoint. OneDrive is for personal working files: drafts, notes, things not yet ready to share. The test is simple: if a colleague would ever ask for it, it is company data, and it belongs where the company owns it.
Their OneDrive is tied to their account, and when the account is deleted the files eventually go with it. Microsoft 365 gives admins a retention window to rescue contents after departure, but rescuing is a scramble through someone else's folder structure. The clean answer is making sure company files never lived there in the first place.
No — SharePoint and OneDrive are both included in the Microsoft 365 business plans most companies already have. If you pay for Microsoft 365, you almost certainly own the fix; what is missing is usually structure and migration, not licensing.