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What to Do When You've Reached the Limit of Microsoft 365 Business Premium

Scaling Beyond Microsoft 365 Business Premium: Enterprise Transition Guide

Section titled “Scaling Beyond Microsoft 365 Business Premium: Enterprise Transition Guide”

When your organization reaches the 300-user limit of Microsoft 365 Business Premium, it’s time to transition to enterprise-level plans. This guide outlines two strategic options to maintain the same security, productivity, and device management capabilities while scaling your organization.


OptionBase LicenseRequired Add-onsTotal Cost/UserComplexityKey Advantage
Option 1Office 365 E3Defender P2, Defender O365 P1, EMS E3$41.20HigherLower per-user cost
Option 2Microsoft 365 E3Defender P2, Defender O365 P1$43.20LowerSimplified management

Ideal for: Organizations prioritizing cost optimization with flexible license management

ComponentCost/UserCapabilityBusiness Value
Office 365 E3$23.00Core Office apps, cloud servicesProductivity foundation
Defender for Endpoint P2$5.20Advanced EDR, automated investigationEndpoint security
Defender for Office 365 P1$2.00Email threat protectionCommunication security
EMS E3$11.00Azure AD P1, Intune, AIP P1Identity & device management

Total Cost: $41.20 per user/month

Business Premium FeatureOffice 365 E3 + Add-ons Equivalent
Office Applications✓ Office 365 E3
Email & Collaboration✓ Office 365 E3
Advanced Security✓ Defender P2 + Defender O365 P1
Device Management✓ EMS E3 (Intune)
Identity Management✓ EMS E3 (Azure AD P1)
Information Protection✓ EMS E3 (AIP P1)

Ideal for: Organizations seeking simplified license management with comprehensive bundled features

ComponentCost/UserCapabilityBusiness Value
Microsoft 365 E3$36.00Office 365 E3 + EMS E3 + Windows EnterpriseUnified platform
Defender for Endpoint P2$5.20Advanced EDR, automated investigationEndpoint security
Defender for Office 365 P1$2.00Email threat protectionCommunication security

Total Cost: $43.20 per user/month

Business Premium FeatureMicrosoft 365 E3 + Add-ons Equivalent
Office Applications✓ Microsoft 365 E3
Email & Collaboration✓ Microsoft 365 E3
Advanced Security✓ Defender P2 + Defender O365 P1
Device Management✓ Microsoft 365 E3 (Intune)
Identity Management✓ Microsoft 365 E3 (Azure AD P1)
Information Protection✓ Microsoft 365 E3 (AIP P1)
Windows Enterprise✓ Bonus feature

Terminal Services (Remote Desktop Services)

Section titled “Terminal Services (Remote Desktop Services)”
ScenarioBusiness PremiumOffice 365 E3 + EMS E3Microsoft 365 E3
Terminal Services Support✓ (with SCA)✓ (with EMS E3)✓ (built-in)
License AssignmentPer userPer userPer user
Management ComplexityLowHighLow

Recommendation: If all users require Terminal Services access, Microsoft 365 E3 provides the most streamlined solution.

FeatureBusiness PremiumMicrosoft 365 E3Business Impact
Windows Enterprise License✗✓Advanced security features
Credential Guard✗✓Enhanced credential protection
Application Guard✗✓Browser isolation security
Windows Defender Advanced✗✓Enterprise-grade protection

Important Note: Microsoft 365 E3 requires existing OEM Windows license (Pro or Home) for Enterprise upgrade.


Scenario 1: Mixed Environment (300 Business Premium + 300 Office 365 E3)

Section titled “Scenario 1: Mixed Environment (300 Business Premium + 300 Office 365 E3)”
User GroupLicense TypeCost/UserMonthly Cost
Group 1Business Premium$22.00$6,600
Group 2Office 365 E3 + Add-ons$41.20$12,360
TotalMixed$31.60 average$18,960

Scenario 2: Mixed Environment (300 Business Premium + 300 Microsoft 365 E3)

Section titled “Scenario 2: Mixed Environment (300 Business Premium + 300 Microsoft 365 E3)”
User GroupLicense TypeCost/UserMonthly Cost
Group 1Business Premium$22.00$6,600
Group 2Microsoft 365 E3 + Add-ons$43.20$12,960
TotalMixed$32.60 average$19,560
MetricOption 1 (O365 E3)Option 2 (M365 E3)Difference
Average Cost/User$31.60$32.60+$1.00
Total Monthly Cost$18,960$19,560+$600
Management ComplexityHigherLowerSignificant
Windows EnterpriseNot includedIncludedMajor value

  • Budget Priority: Cost optimization is critical
  • License Management: Complex license administration is acceptable
  • Windows Enterprise: Not required for your environment
  • Terminal Services: Limited user requirements
  • Simplicity Priority: Streamlined license management preferred
  • Terminal Services: Organization-wide implementation needed
  • Windows Enterprise: Advanced security features required
  • Future Growth: Anticipated need for additional enterprise features

PhaseActivitiesTimeline
AssessmentLicense inventory, user analysis, technical requirements2-4 weeks
PlanningLicense procurement, migration timeline, user communication4-6 weeks
ExecutionLicense assignment, feature configuration, user training6-8 weeks
OptimizationLicense consolidation, cost review, performance monitoringOngoing
  1. User Experience: Ensure seamless transition with minimal disruption
  2. Feature Parity: Verify all Business Premium features are replicated
  3. Security Continuity: Maintain protection levels during transition
  4. Cost Management: Monitor license utilization and optimize spend

Key Takeaway: While Office 365 E3 with add-ons offers a slight cost advantage ($1.00 per user), Microsoft 365 E3 provides superior value through simplified management, built-in Windows Enterprise licenses, and comprehensive feature bundling.

Microsoft 365 E3 + Add-ons is the preferred choice for most organizations because:

  • Simplified Administration: Single platform reduces complexity
  • Windows Enterprise: Significant added value at minimal cost difference
  • Terminal Services: Built-in support without additional components
  • Future Scalability: Better foundation for enterprise growth

Office 365 E3 + Add-ons may be suitable for organizations with:

  • Strict budget constraints
  • Existing Windows Enterprise licenses
  • Limited Terminal Services requirements
  • Sophisticated license management capabilities

The $600 monthly difference represents a small investment for significantly simplified operations and enhanced enterprise capabilities.