365 License Lookup

A fast reference for Microsoft 365 and Office 365 licensing: which SKUs include a feature, what's inside a SKU, and what you'd gain or lose moving between two.

Based on data last updated by Microsoft on Aug 18, 2026 · See what's changed

Commercial GCC Education Nonprofit GCC High DoD

"Office 365" was Microsoft's original name for this cloud productivity suite — Word, Excel, Outlook, Teams, and the rest. "Microsoft 365" is that same productivity core plus Windows and device/security management, not just a rebrand. In 2020 most commercial Office 365 SKUs were renamed Microsoft 365, but Office 365 E1, E3, and E5 still exist as separate, purchasable SKUs alongside Microsoft 365 E3 and E5 — the Office 365 versions lack the Windows, Intune, Entra ID, and Defender pieces the Microsoft 365 versions add.

Business vs. Enterprise, roughly — a rough map, not an equivalence:

  • Business Standard ≈ Office 365 E3's productivity core (Exchange, SharePoint, Teams, desktop Office) without E3's own slice of the Defender/compliance stack (Defender for Office 365, information protection, and richer Exchange/SharePoint plan tiers).
  • Business Premium ≈ Business Standard plus a real slice of the Microsoft 365 E5 security stack — Intune, Entra ID P1, Defender for Business — but not E5's full Purview compliance suite (eDiscovery, records management, insider risk, advanced auditing), analytics, or audio conferencing/Teams Phone.
  • Enterprise (E-series) SKUs: no per-SKU seat cap, the fullest compliance/security stack, and required once an organization needs more than 300 licensed seats.

Business Basic, Standard, Premium, and Apps for business are each capped at 300 seats — per SKU, not per organization, so a company can mix a capped Business SKU for most staff with an uncapped Enterprise SKU for the rest.

GCC High and DoD licensing aren't covered by this tool — consult a Microsoft licensing specialist for those environments.

Microsoft 365 Business Basic SMB_BUSINESS_ESSENTIALS
Microsoft 365 Business Basic O365_BUSINESS_ESSENTIALS
Microsoft 365 Business Standard
EEA (no Teams) Office_365_w/o_Teams_Bundle_Business_Standard
EEA (no Teams) Microsoft_365_Business_Standard_EEA_(no_Teams)
Microsoft 365 Business Premium

Microsoft 365
Microsoft 365 E3
Microsoft 365 E7
Office 365
Office 365 E1
Office 365 E2 retired
Office 365 E3
Office 365 E4 retired
Office 365 E5

Microsoft 365
Microsoft 365 F1 M365_F1_COMM
Microsoft 365 F1 M365_F1
Microsoft 365 F3
Office 365
Office 365 F3

Defender for Endpoint
Microsoft Defender for Endpoint P1
Defender for Office 365
Microsoft Defender for Office 365 (Plan 1)
Microsoft Defender for Office 365 (Plan 2)
Microsoft Defender for Business

Microsoft Entra ID P1
Microsoft Entra ID P2

Intune

Privacy Management - subject rights request
1 PRIVACY_MANAGEMENT_SUB_RIGHTS_REQ_1_V2
1 PRIVACY_MANAGEMENT_SUB_RIGHTS_REQ_1_EDU_V2
1 PRIVACY_MANAGEMENT_SUB_RIGHTS_REQ_1_V2_GCC
10 PRIVACY_MANAGEMENT_SUB_RIGHTS_REQ_10_V2
10 PRIVACY_MANAGEMENT_SUB_RIGHTS_REQ_10_EDU_V2
10 PRIVACY_MANAGEMENT_SUB_RIGHTS_REQ_10_V2_GCC
50 PRIVACY_MANAGEMENT_SUB_RIGHTS_REQ_50_V2
50 PRIVACY_MANAGEMENT_SUB_RIGHTS_REQ_50_EDU_V2
100 PRIVACY_MANAGEMENT_SUB_RIGHTS_REQ_100_V2
100 PRIVACY_MANAGEMENT_SUB_RIGHTS_REQ_100_EDU_V2
100 PRIVACY_MANAGEMENT_SUB_RIGHTS_REQ_100_V2_GCC