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Microsoft 365 E3 vs E5 — what's worth the upgrade

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Microsoft 365 E3 vs E5 — what's worth the upgrade

A practical comparison of Microsoft 365 E3 and E5 plans — what E5 adds, where the value sits, and step-up patterns.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-plan-comparison-e3-vs-e5

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01

What does Microsoft 365 E5 add over E3?

Four areas: security (Defender for Office 365 P2, Defender for Endpoint P2, Defender for Identity, Defender for Cloud Apps), compliance (Purview premium — Insider Risk, Premium eDiscovery, Records Management, one-year a…

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-plan-comparison-e3-vs-e5

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02

How much more expensive is E5 than E3?

Roughly 60–70% more per user at list price. Whether that gap is worth it depends on how many of E5's bundled workloads you would actually deploy — regulated and high-risk organisations usually justify it; lighter tenant…

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-plan-comparison-e3-vs-e5

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03

Do we have to choose one tier for the whole tenant?

No. Licences are per-user, and the most common enterprise pattern is mixed: E3 as the base, with E5 or step-up SKUs for the security team, executives, compliance officers, and other roles that genuinely use the extra ca…

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-plan-comparison-e3-vs-e5

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04

What are the E5 step-up SKUs?

E5 Security (the Defender stack on top of E3), E5 Compliance (the Purview premium stack), Entra ID P2 (PIM and Identity Protection), and Defender for Office 365 P2. Each costs less than the E3-to-E5 price difference, so…

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-plan-comparison-e3-vs-e5

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05

Executive, board member, general counsel

Suggested base: E3 · Add: E5 (full step-up) · Why: PIM, Identity Protection, Premium eDiscovery, Defender for Office P2 — the whole risk-management stack in one line.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-plan-comparison-e3-vs-e5

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06

Security engineer, SOC analyst

Suggested base: E3 · Add: E5 Security · Why: The Defender stack is the day job; Compliance and Power BI Pro are not.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-plan-comparison-e3-vs-e5

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07

Compliance officer, records manager

Suggested base: E3 · Add: E5 Compliance · Why: Insider Risk, Records Management, Premium eDiscovery are the primary tools.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-plan-comparison-e3-vs-e5

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