Fee Transparency Report
Slack Fees Exposed — 2026
Complete breakdown of every fee Slack charges, including the hidden ones they don't advertise. Total estimated annual cost: $2,625+ (for 25 users on Pro). Switch to Microsoft Teams (included with Microsoft 365) and save $825+/year (25 users).
Potential Savings
$825+/year (25 users)
by switching from Slack ($2,625+ (for 25 users on Pro)/yr) to Microsoft Teams (included with Microsoft 365) ($6.00 per user/month/yr)
Advertised Fees
Pro Plan
per user/month
$8.75
Business+ Plan
per user/month
$12.50
Enterprise Grid Plan
per user/month
$custom
Slack Connect (External Channels)
per user/month
requires Business+
Hidden Fees
Fees not prominently disclosed at signup
Guest Access Overage
per guest/month
$8.75
Additional Storage Beyond Plan Limit
monthly
$0.25/GB
Data Export & Compliance (eDiscovery)
monthly
Enterprise only
SSO/SAML Requirement
monthly
requires Business+ ($12.50/user)
Slack vs Microsoft Teams (included with Microsoft 365) — Cost Comparison
Slack
$2,625+ (for 25 users on Pro)
per year
Microsoft Teams (included with Microsoft 365)
$6.00 per user/month
per year
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