Microsoft 365 Subscription Comparisons
Only the differences that change your decision. Pick two plans and see what the more expensive one adds, what it costs per user and for your headcount, and what stays the same.
The comparisons we are asked about most
Business Premium vs E3
Under 300 people, Business Premium usually wins: it adds email threat protection that E3 lacks and costs less. E3 brings Windows Enterprise rights, larger mailboxes and no seat cap.
E3 vs E5
E5 is worth it when you need several of its extras at once: risk-based Conditional Access, full endpoint detection and response, automatic labeling, Teams Phone and Power BI Pro. For one or two, compare add-ons with the E5 vs E3 calculator.
Business Standard vs Premium
The apps are identical. Premium adds device management, Conditional Access, Defender for Business and email threat protection: the security baseline most small businesses need.
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