What Is Microsoft 365 E5? Security, Compliance, and What It Actually Costs
Microsoft 365 E5 is the license tier that security teams either fight to get approved or quietly resent paying for. At $60/user/month starting July 2026, it bundles Defender XDR, Entra ID P2, the full Purview compliance suite, and now Security Copilot compute units into a single SKU. Whether that price is justified depends entirely on what you are already buying separately.
This breakdown covers what E5 includes, what it does not, what changed with the July 2026 price increase, and when E3 or the new E7 Frontier Suite makes more sense.
What Microsoft 365 E5 Actually Is
E5 is Microsoft's premier security and compliance license tier within the Microsoft 365 enterprise lineup. It has been the top-tier offering since the original Office 365 E5 launched in 2016, and for a decade it represented the highest level of security, analytics, and compliance tooling Microsoft sold under a single SKU.
That changed in 2026. Microsoft introduced the E7 Frontier Suite at $99/user/month, which sits above E5 and bundles in M365 Copilot, Agent 365, and the Entra Suite. E5 is no longer the ceiling -- it is now the last tier before the AI-forward stack.
Positioning: Think of E5 as the security and compliance consolidation tier. If your organization is already spending on Defender, Entra ID P2, Purview, and Power BI as separate add-ons to E3, E5 bundles all of those at a discount. If you are not using those tools, you are paying for capabilities that sit idle.
What Is Included in E5
E5 includes everything in E3 plus a full security, compliance, and analytics stack. Here is the breakdown by category:
| Category | What You Get |
|---|---|
| Productivity | Word, Excel, PowerPoint, OneNote, Outlook -- desktop + web + mobile |
| Collaboration | Microsoft Teams, Exchange Online Plan 2, SharePoint Online Plan 2 |
| Storage | OneDrive for Business (1 TB base, expandable to 5 TB) |
| Security | Microsoft Defender XDR (endpoints, email, identity, cloud apps), Entra ID P2, Security Copilot (400 SCUs/1K users) |
| Compliance | Microsoft Purview: DLP, eDiscovery Premium, Insider Risk Management, Information Protection with sensitivity labels |
| Analytics | Power BI Pro |
| New (July 2026) | Intune Endpoint Privilege Management, Enterprise Application Management, Microsoft Cloud PKI |
What E5 does NOT include: Microsoft 365 Copilot (the AI assistant for Word, Excel, PowerPoint, Outlook, and Teams). That is a separate $30/user/month add-on. The Security Copilot compute units included in E5 are a different product -- they power security operations in Defender and Sentinel, not productivity AI in Office apps.
Security Capabilities
Security is the primary reason organizations move from E3 to E5. The gap between the two tiers is not incremental -- it is a full extended detection and response (XDR) stack, identity governance, and now AI-powered security operations.
Microsoft Defender XDR
E5 includes the complete Defender XDR suite, which correlates threat signals across endpoints, email, identity, and cloud apps into a unified incident view. This replaces the fragmented approach of running Defender for Endpoint, Defender for Office 365, Defender for Identity, and Defender for Cloud Apps as separate tools. In E3, you get Defender for Office 365 Plan 1 -- basic safe links and safe attachments. E5 gives you Plan 2 (automated investigation and response, threat explorer, attack simulation) plus the full cross-domain correlation engine.
Entra ID P2
E3 includes Entra ID P1 -- Conditional Access policies and self-service password reset. E5 adds Entra ID P2, which unlocks:
- Privileged Identity Management (PIM): Just-in-time admin role activation with approval workflows and time-bound access
- Risk-based Conditional Access: Policies that respond to sign-in risk signals (impossible travel, anonymous IP, malware-linked IP) in real time
- Identity Protection: Automated detection and remediation of compromised accounts based on machine learning risk scores
Security Copilot (New in 2026)
Starting with the April-June 2026 rollout, E5 tenants receive 400 Security Copilot Units (SCUs) per 1,000 licensed users per month, capped at 10,000 SCUs regardless of tenant size. SCUs are consumption tokens that power AI-assisted security operations in Defender, Sentinel, Intune, and Purview -- think incident summarization, KQL query generation, and threat intelligence synthesis.
SCU math: 400 SCUs per 1,000 users means a 5,000-user tenant gets 2,000 SCUs/month. Microsoft has not published how many SCUs a typical security operation consumes per hour, so forecasting whether this allocation is sufficient for an active SOC is difficult until consumption patterns emerge.
Intune Endpoint Privilege Management (New July 2026)
Previously a standalone add-on, Intune Endpoint Privilege Management moves into the E5 bundle on July 1, 2026. It enables just-in-time elevation for standard users -- employees can run specific applications with admin privileges on a per-task basis, without granting persistent local admin rights. This directly reduces the attack surface from overprivileged endpoints.
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E5 includes the full Microsoft Purview suite. For regulated industries -- healthcare, financial services, government -- this is frequently the deciding factor over E3.
Data Loss Prevention (DLP)
E5 DLP extends beyond Exchange and SharePoint to cover endpoints (Windows devices), Teams chat and channel messages, and third-party cloud apps via Defender for Cloud Apps integration. E3 DLP covers Exchange and SharePoint only. The endpoint DLP capability alone has been the trigger for many E3-to-E5 upgrades because it catches sensitive data leaving through USB drives, local file copies, and unsanctioned cloud uploads.
eDiscovery Premium
E3 includes eDiscovery Standard (search and export). E5 adds eDiscovery Premium: custodian management, legal hold notifications, review sets with near-duplicate detection and threading, predictive coding (machine learning-assisted document review), and conversation reconstruction for Teams chats. If your legal team is running litigation holds or regulatory investigations, this is the tier they need.
Insider Risk Management
Exclusive to E5. Correlates signals across email, file activity, HR events (like resignation notices via the HR connector), and endpoint behavior to surface potential data exfiltration, IP theft, or security policy violations. This is the tool that detects the departing employee who downloads 4,000 files from SharePoint three days before their last day.
Information Protection
E5 adds automatic sensitivity label application based on content inspection. E3 supports manual labeling and basic auto-labeling in Office apps. E5 extends auto-labeling to Exchange, SharePoint, and OneDrive at the service level -- labels get applied without relying on the user to classify the document correctly.
How Much Does Microsoft 365 E5 Cost?
E5 pricing increases 5.3% on July 1, 2026. Here is the full M365 enterprise tier table with July 2026 pricing:
| Plan | Price (July 2026) | Target | Key Differentiator |
|---|---|---|---|
| Microsoft 365 F1 | $3/user/mo | Frontline workers | Web/mobile apps only, no desktop Office |
| Microsoft 365 F3 | $10/user/mo | Frontline workers | Desktop apps, limited compliance |
| Microsoft 365 E3 | $39/user/mo | Enterprise | Core productivity + baseline security |
| Microsoft 365 E5 | $60/user/mo was $57 | Security-focused enterprise | Defender XDR + Purview + Entra P2 + Power BI Pro |
| Microsoft 365 E5 (no Teams) | $51.45/user/mo was $48.45 | EU / Teams-optional | Same as E5, minus Teams |
| Microsoft 365 E7 Frontier Suite | $99/user/mo | AI-forward enterprise | E5 + M365 Copilot + Agent 365 + Entra Suite |
E5 vs E3: The $21 Question
The gap between E3 ($39) and E5 ($60) is $21/user/month. That $21 buys the full Defender XDR suite, Entra ID P2, the Purview compliance stack, Power BI Pro, and now Security Copilot SCUs. If you are already purchasing Defender for Endpoint Plan 2 ($5.20/user), Entra ID P2 ($9/user), Purview DLP ($5/user), and Power BI Pro ($10/user) as standalone add-ons to E3, you are spending $29.20/user on top of E3's $39 -- totaling $68.20/user. E5 at $60 saves you $8.20/user/month and simplifies license management.
Break-even rule: If you need three or more of the security/compliance add-ons that E5 bundles, E5 is cheaper than E3 + add-ons. If you only need one, E3 + that single add-on is more cost-effective.
Who Should Use E5 (and Who Should Not)
When E5 Is NOT the Right Choice
- Small-to-mid orgs without a security team: If nobody is actively using Defender XDR or Purview, you are paying for tools that generate alerts nobody reads. E3 is sufficient.
- Organizations that only need one add-on: If you just need Entra ID P2 and nothing else, buy E3 + the P2 add-on ($48/user vs $60/user).
- AI-forward organizations: If your primary goal is M365 Copilot for productivity AI, E5 does not include it. You would need E5 + Copilot at $90/user/month. At that point, the E7 Frontier Suite at $99/user/month is only $9 more and includes Agent 365 and the Entra Suite on top.
What to Watch
Key Limitations
For a look at how Microsoft Copilot fits into the broader AI tool ecosystem, see the AI Tools Hub. For governance considerations around AI-powered security tools, see the AI Governance Hub.
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