Microsoft's 1 May 2026 launch of Microsoft 365 E7 (the Frontier Suite) at $99 per user per month, combined with the 1 Jul 2026 increases to the E3 base ($36 to $39) and E5 base ($57 to $60), restructures Microsoft 365 economics so that the enterprise AI-licensing decision becomes a platform-tier decision taken at renewal rather than a Copilot add-on bought separately, and customers who decline Copilot still face a higher base cost.

Anchored on Microsoft's 9 Mar 2026 official blog announcing E7 (GA 1 May 2026, $99/user/mo, bundling E5 + Microsoft 365 Copilot + Agent 365 + Entra Suite; Agent 365 standalone $15/user/mo; Judson Althoff a-la-carte quote) and Microsoft's 2026 M365 packaging and pricing update (E3 $36 to $39 +8%, E5 $57 to $60 +5%, effective 1 Jul 2026, current pricing held for customers renewing before the effective date). VERIFIED 2026-06-05 via blogs.microsoft.com (9 Mar 2026 Frontier Suite post) and microsoft.com/en-us/licensing/news/2026-m365-packaging-pricing-updates; Microsoft blog states $99 per user without an explicit per-month/annual qualifier, read here as per-user-per-month annual-commitment per uniform analyst interpretation. 45-day cadence because pricing ages fast and the base increase takes effect 1 Jul 2026. Triggers: (1) Microsoft reverses or defers the 1 Jul base increases; (2) Microsoft unbundles Copilot pricing below the E7 delta, re-opening the add-on path; (3) published adoption data shows E7 is the lower total bill for the median customer, not only the all-in buyer. Siblings: AM-201 (enterprise AI cost and ROI), the Agentforce-vs-Copilot pricing read.