Microsoft 365 Backup vs third-party backup
The choice is not always one or the other. Microsoft 365 Backup and third-party products solve the same problem with different economics and different gaps. This page compares the two approaches on price, coverage, retention, restore speed and manageability.
At a glance
| Factor | Microsoft 365 Backup | Typical third-party |
|---|---|---|
| Pricing model | Per GB protected per month | Per user per month |
| Representative rate | $0.15 | $2.63 - $7.00 per user |
| Exchange, OneDrive, SharePoint | Yes | Yes |
| Teams chat | No | Often yes |
| Retention | Up to 1 year | Often multi-year |
| Export outside Microsoft cloud | No | Yes |
| Restore target | Same tenant | Same or different tenant |
| Management overhead | Low | Medium |
When native backup is the better fit
Microsoft 365 Backup is usually cheaper and simpler for tenants with small mailboxes, limited archive growth, and no need to recover outside Microsoft's cloud. Restores are fast because the data never moves, and there is no third-party agent to licence or maintain.
It also wins when the main use case is short-term recovery from accidental deletion or limited ransomware. If your retention requirement is one year or less and Teams chat is not in scope, the native product covers the risk with minimal overhead.
When a third-party product is the better fit
A third-party product makes sense when Teams chat must be recoverable, when you need multi-year retention, when data must be stored outside Microsoft's cloud, or when restores may need to go to a different tenant. These requirements are common in regulated industries and in MSP portfolios where clients expect a single backup service across all workloads.
A per-user price is also easier to budget and invoice, especially for customers who are used to seat-based licences. For data-heavy tenants, however, per-user pricing can exceed the native per-GB bill, so the choice should be verified against actual volumes.
The crossover point
The crossover depends on protected gigabytes per user. Divide the third-party per-user price by the native per-GB rate to find the break-even storage per user. A tenant above that number is usually cheaper on native backup; a tenant below it is usually cheaper on a per-user product. The cost calculator runs this for your own volumes.
Common hybrid approach
Some organisations use Microsoft 365 Backup for Exchange, OneDrive and SharePoint short-term recovery, and a third-party product for Teams chat and long-term archive. This keeps the fast restore path native while covering the workloads and retention periods native backup does not.
Frequently asked questions
Is Microsoft 365 Backup cheaper than third-party backup?
It depends on data volume. Per-GB native backup is cheap for small mailboxes and expensive for heavy archives. Third-party per-user pricing is predictable but can cost more per user for tenants with large mailboxes.
What does third-party backup cover that Microsoft 365 Backup does not?
Most third-party products cover Teams chat, offer multi-year retention, and allow data to be exported or stored outside Microsoft’s cloud. Native backup does none of those.
What does Microsoft 365 Backup do better than third-party backup?
Native backup restores fast because data never leaves Microsoft’s cloud, the per-GB rate is transparent, and there is no separate licence or agent to manage.
Can I use both Microsoft 365 Backup and a third-party product?
Yes. Some organisations use native backup for short-term, fast restores and a third-party product for long-term retention or Teams chat protection.
How do I compare costs accurately?
Measure the protected gigabytes across Exchange, OneDrive and SharePoint, then compare the native total at $0.15 per GB against the per-user quote for the same scope.
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