Microsoft 365 E3 vs E5: Complete Comparison Guide for 2026
Choosing between Microsoft 365 E3 and E5 licenses? This detailed comparison will help you make the right decision for your organization based on features, security, and cost.
Microsoft 365 E3 vs E5: Quick Overview
| Feature | M365 E3 | M365 E5 |
|---|---|---|
| Price (per user/month) | ~$36 USD | ~$57 USD |
| Office Apps | ✅ | ✅ |
| Exchange Online | ✅ | ✅ |
| SharePoint & OneDrive | ✅ (1TB) | ✅ (Unlimited) |
| Microsoft Teams | ✅ | ✅ + Phone System |
| Advanced Threat Protection | ❌ | ✅ Defender for O365 |
| Advanced Compliance | Basic | ✅ Full Suite |
| Power BI Pro | ❌ | ✅ |
| Audio Conferencing | ❌ | ✅ |
When to Choose Microsoft 365 E3
E3 is ideal for organizations that:
- Need core productivity tools (Word, Excel, PowerPoint, Outlook)
- Want basic security and compliance features
- Have fewer than 300 employees
- Dont require advanced threat protection
- Are budget-conscious but need enterprise features
Key E3 Features
- Microsoft 365 Apps: Desktop and mobile Office apps
- Exchange Online Plan 2: 100GB mailbox, archive
- SharePoint Online Plan 2: Team sites, document management
- Microsoft Teams: Chat, meetings, calling
- Azure AD Premium P1: Conditional access, MFA
- Intune: Mobile device management
- Information Protection: Basic DLP policies
When to Choose Microsoft 365 E5
E5 is essential for organizations that:
- Handle sensitive data (healthcare, finance, government)
- Need advanced threat protection against sophisticated attacks
- Require full compliance suite (eDiscovery, audit, retention)
- Want to replace their phone system with Teams
- Need Power BI for business intelligence
Exclusive E5 Features
- Microsoft Defender for Office 365 Plan 2: Advanced threat protection, safe attachments, safe links
- Microsoft Defender for Endpoint: Endpoint detection and response
- Azure AD Premium P2: Identity protection, PIM
- Microsoft 365 Defender: Unified security portal
- Advanced Compliance: Advanced eDiscovery, insider risk management
- Power BI Pro: Business analytics included
- Phone System: Cloud PBX capabilities
- Audio Conferencing: Dial-in for meetings
Security Comparison: E3 vs E5
The biggest difference between E3 and E5 is security. Heres a detailed breakdown:
| Security Feature | E3 | E5 |
|---|---|---|
| Multi-Factor Authentication | ✅ | ✅ |
| Conditional Access | ✅ | ✅ |
| Safe Attachments | ❌ | ✅ |
| Safe Links | ❌ | ✅ |
| Anti-Phishing Policies | Basic | Advanced AI |
| Threat Investigation | ❌ | ✅ |
| Automated Response | ❌ | ✅ |
| Identity Protection | ❌ | ✅ |
| Cloud App Security | ❌ | ✅ |
Cost Analysis: Is E5 Worth the Extra Investment?
E5 costs approximately $21 more per user per month. For a 100-user organization, thats $2,100/month or $25,200/year extra. But consider:
- Defender for Office 365 P2 standalone: ~$5/user/month
- Power BI Pro standalone: ~$10/user/month
- Phone System standalone: ~$8/user/month
- Audio Conferencing standalone: ~$4/user/month
If you need 3+ of these features, E5 provides better value than buying E3 + add-ons.
Our Recommendation
Based on our experience deploying Microsoft 365 for 100+ organizations:
- Small businesses (under 50 users): Start with E3, add security as needed
- Mid-size companies (50-500 users): Consider E5 for security features
- Enterprises & regulated industries: E5 is essential for compliance
- Hybrid approach: E5 for executives/IT, E3 for general staff
Need Help Choosing?
Virtual Petals offers free Microsoft 365 licensing consultations. We analyze your needs and recommend the most cost-effective licensing strategy.
