Microsoft Teams vs Slack: pricing, plans, and positioning compared

Verified pricing and side-by-side plan structures. Updated daily.

Side-by-side comparison

	Microsoft Teams Communication	Slack Communication
Entry price	$6/mo	$8.75/mo
Annual discount	−17%	−17%
Free plan	Yes	Yes
Number of tiers	—	4
Positioning	Business communication and meetings, bundled with Microsoft 365 (Business Basic $6/user includes it). Positioned as the enterprise alternative to Slack + Zoom + Google Meet for organizations already on Microsoft. Distinctive for being effectively free for existing M365 customers — which drove Teams to overtake Slack in enterprise seat count by 2023. Standalone plan ($4/user/mo) rarely used; most Teams growth is Microsoft 365 bundle-driven. AI features (Copilot for Teams) charged separately at $30/user/mo.	Business messaging built around channels and workflows, acquired by Salesforce for $27.7B in 2021. Positioned as the alternative to email threads for team communication. Distinctive for its integrations depth (2,500+ apps) and the way it exposed how much internal knowledge lives in messages. Priced per ACTIVE user (not per seat) — inactive users don't bill, but active-member spikes surprise finance teams. Salesforce raised Business+ tier from $12.50 to $15/user in 2026 to fund AI features.
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