Microsoft 365 Licensing Guide

M365 Business, E3, E5, and F-series plans compared — what's included and when to upgrade

11 minUpdated August 2026DCS Global Engineering TeamCertified Data Center Infrastructure Experts

Executive summary

Microsoft 365 licensing spans Business (up to 300 users), Enterprise (E1, E3, E5), and Frontline Worker (F1, F3) plans. Selecting the right plan requires understanding which features your users actually need.

Key takeaways

This guide covers the essential concepts, best practices, and decision frameworks for Microsoft 365 Licensing Guide.
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Overview

M365 plans range from Business Basic ($6/user/month) to E5 ($57/user/month). Most common enterprise plans: E3 (Office apps, Teams, Exchange, SharePoint, basic security) and E5 (E3 + advanced security, compliance, analytics).

Key Concepts

E3 vs. E5: E5 adds Defender for Endpoint P2, Purview compliance, Power BI Pro, Phone System. The E5 premium (~$20/user/month) is only justified for users needing advanced security and compliance.

Best Practices

Assign plans based on user roles. Review license assignments quarterly. M365 Copilot ($30/user/month) requires E3 or E5 as prerequisite.

Key Considerations

Microsoft 365 Copilot requires M365 Apps for enterprise. Teams Phone requires Phone System add-on or E5. Audit actual feature usage before upgrading plans.

Next Steps

DCS Global provides expert guidance and implementation services for Microsoft 365 Licensing Guide. Our certified engineers have delivered solutions across national and international engagements and can help you navigate the complexity of enterprise infrastructure decisions. Contact our team to schedule a consultation or infrastructure assessment.

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Updated August 2026

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Microsoft 365 Licensing Guide | Microsoft Licensing | DCS Global

Microsoft 365 Licensing Guide — Microsoft Licensing | DCS Global