Slack Pro Plan: $8.75/User/Month - What You Get and What's Missing
Pro is Slack's entry-level paid plan. It removes the most frustrating free plan limitations but leaves out SSO, compliance, and SLA features that many growing companies need.
Pricing Breakdown
| Team size | Monthly billing | Annual billing | Annual savings |
|---|---|---|---|
| 10 users | $87.5/mo | $72.5/mo | $180/yr |
| 25 users | $218.75/mo | $181.25/mo | $450/yr |
| 50 users | $437.5/mo | $362.5/mo | $900/yr |
| 100 users | $875/mo | $725/mo | $1,800/yr |
| 200 users | $1,750/mo | $1,450/mo | $3,600/yr |
What Pro Includes
What Pro Does Not Include
SAML SSO
$3.75/user/mo extraRequires Business+ ($12.50/user/mo). Most companies with 50+ employees need SSO for security compliance. This is Slack's most controversial pricing gate.
SCIM provisioning
Requires Business+Automatic user provisioning and deprovisioning from your identity provider. Without this, IT admins must manually manage Slack accounts.
Compliance data exports
Requires Business+Needed for legal holds, eDiscovery, and regulatory compliance. If you work in finance, healthcare, or legal, this is non-negotiable.
99.99% SLA
Requires Business+Pro has no uptime guarantee. If Slack goes down, you have no contractual recourse. Business+ guarantees 99.99% uptime with service credits for violations.
Advanced Slack AI
Requires Business+Pro gets basic AI (summaries, huddle notes). Business+ adds AI-powered translations, file summaries, and advanced search. Enterprise adds cross-app search.
Data residency
Requires Enterprise GridYour data is stored wherever Slack decides. Enterprise Grid lets you specify data residency regions for compliance with GDPR and other regulations.
Pro vs Business+ Decision Guide
The central question is whether you need SSO. If your company requires single sign-on (and most companies at 50+ employees do), Pro is not an option. You must pay $12.50/user/month for Business+ instead of $7.25/user/month for Pro.
Stay on Pro if: Your team is under 50 people, you do not work in a regulated industry, you do not need SSO or compliance exports, and you do not need an SLA guarantee.
Upgrade to Business+ if: You need SSO, your industry requires compliance data exports, you need a guaranteed SLA, or you want advanced Slack AI features (translations, file summaries).
Frequently Asked Questions
Is Slack Pro worth it?
For teams of 5 to 50 users who do not require SSO or compliance features, Pro is excellent value. You get unlimited message history, unlimited integrations, group huddles for up to 50 people, basic Slack AI, and 10 GB storage per user. The upgrade from Free to Pro removes the most painful limitations. However, if your company requires SSO (most do at 50+ employees), you will need Business+ at nearly double the price.
Does Slack Pro include AI features?
Yes. Since June 2025, Slack Pro includes basic AI features at no extra cost: conversation summaries to catch up on long threads, huddle notes for automatic meeting transcription, and basic AI-powered search. Advanced features like translations, file summaries, and cross-app search require Business+ or Enterprise.
Can I get SSO on Slack Pro?
No. SAML SSO requires Business+ ($12.50/user/month annually) or Enterprise Grid. This is one of Slack's most criticized pricing decisions because SSO is a basic security feature that most competitors include on all paid plans. For a 100-person team, the SSO upgrade costs an additional $3,750 per year ($3.75 x 100 x 12).
How much does Slack Pro cost for 100 users?
On monthly billing: $875 per month ($8.75 x 100) or $10,500 per year. On annual billing: $725 per month ($7.25 x 100) or $8,700 per year. Annual billing saves $1,800 per year for a 100-person team. Use the cost calculator for exact projections including the 9% renewal escalation.