Microsoft 365 Backup Billing
Understanding Microsoft 365 Backup Billing
Microsoft 365 Backup is billed monthly based on usage. There is no base fee — your invoice is calculated from two things:
Protected Users
Each Microsoft 365 user covered by your backup jobs — billed per user, per month
OneDrive overage
OneDrive storage used above the included 1 TiB (1,024 GiB) per user — billed per GiB, per month
Storage for everything else — Exchange mailboxes, Teams, SharePoint, Microsoft 365 Groups, Planner, and OneNote — is unlimited and included in the per-user price. You are never billed per GiB for these workloads.
What is a Protected User?
A Protected User is one Microsoft 365 person included in your backup. A user counts once per month, no matter how many workloads you back up for them. A user becomes protected when:
You select them directly in a backup job (mailbox, calendar, contacts, tasks, or OneDrive), or
They are a member of a Team or Microsoft 365 Group you've selected for backup.
Users are always deduplicated. If Alice is selected individually and belongs to two backed-up Teams, she is billed once. Guest users, shared mailboxes, and non-user accounts are never billed. Selecting only SharePoint sites does not add Protected Users.
OneDrive storage
Every user with OneDrive included in a backup job gets 1 TiB (1,024 GiB) of OneDrive storage included. Only usage above that allowance is billed, per GiB. Most users never exceed the allowance, so most accounts see no OneDrive charges at all.
Peak-of-period billing
Usage is measured once per day, and your invoice is based on the highest value recorded during the billing period — not the value on the last day.
Adding users mid-month can increase that month's invoice.
Removing users mid-month lowers your bill starting the next billing period.
Example: You protect 20 users for the first ten days, add a Team that raises the count to 35, then remove it before month-end. That period bills 35 Protected Users; the next period bills based on your new, lower count.
Monthly charge
Example: 10 protected users at $3.50/user, with one user storing 1.2 TiB in OneDrive (~205 GiB over the allowance at $0.01/GiB):
(10 × $3.50) + (205 × $0.01) = $37.05/month
Current rates are always displayed in your portal alongside your usage.
Where to view your billing
Per-job usage and billing: From the eazyBackup sidebar, go to e3 Cloud Backup → Users → select the user → Jobs, then click Usage & Billing on the job. This panel shows your current Protected User count, the peak for this billing period, a per-user OneDrive usage table, and your estimated period total.
Estimate before you commit: When creating or editing a backup job, the Billing Estimate panel at the bottom of Step 2 – Inventory updates live as you select users, Teams, and Groups — showing the Protected User count and estimated monthly cost for that job's selection before you save.
Note: The wizard estimate reflects only the job you're editing. The Usage & Billing panel reflects all active Microsoft 365 jobs for that backup user.
Quick answers
Do I pay storage fees for SharePoint or Teams data? No — storage for all Microsoft 365 workloads except OneDrive is unlimited and included.
A user is in three Teams I back up — am I billed three times? No. Every person counts once per month.
How do I lower next month's bill? Narrow your job selections (fewer users, Teams, or Groups). The change takes effect at the start of the next billing period.
The wizard says "Member counts incomplete" — why? Team/group membership hasn't fully loaded yet, so the count may be understated. Click Refresh inventory and reopen the panel.
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