Price checkPer seat
FreeFreePro$7.25/user/moBusiness+$15/user/mo
See all 4 plans

All Slack Plans & Pricing

Plan Monthly Annual Best For
View all features by plan (compare side-by-side)

Free

  • 90 days of message history
  • Up to 10 app integrations
  • 1:1 audio and video calls
  • Slack Connect for external messaging
  • Basic AI features
  • 5 GB total file storage

Pro

  • Unlimited message history
  • Unlimited app integrations
  • Group audio and video calls
  • SAML-based SSO
  • 10 GB file storage per user
  • Basic AI features included

Business+

  • Everything in Pro
  • Advanced Slack AI (search, summaries, recaps)
  • 99.99% uptime SLA
  • Data exports for all messages
  • SCIM provisioning and advanced identity management
  • 24/7 support with 4-hour response time

Enterprise+

  • Everything in Business+
  • Multiple connected workspaces
  • Enterprise-grade AI and search
  • Custom data residency
  • Advanced security and DLP controls
  • Dedicated customer success manager
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What does Slack actually cost you?

Drag the slider. Pick a tier. Your projected spend updates as you go.

Tier
Billing
Your projected cost$181.25per month · $7.25/seat × 25seats
Year 1 license$2.2K12 months at this rate
At a glance

List price by tier (annualized, per seat)

Per-seat list price across Slack's plans, annualized. Custom-priced tiers show a hatched bar.

FreeCustom
Pro$87/yr
Business+$180/yr
Enterprise+Custom
Quick Answer
Last verified:
Medium confidence

Slack costs Free to $15 per user/month as of July 2026, with 4 plans available including a free tier. Plans: Free (free), Pro at $7.25/user/month, and Business+ at $15/user/month. Enterprise pricing is available on request. Pricing depends on your chosen tier, contract length, and negotiated discounts.

Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.

  • Free tier: Yes

Slack offers 4 pricing tiers: Free, Pro, Business+, Enterprise+. A free plan is available. Paid plans include Pro at $7.25/user/month, Business+ at $15/user/month. The Pro plan is growing teams that need full message history.

Compared to other communication software, Slack is positioned at the budget-friendly price point.

  • Average negotiated discount: 14%
  • 7 documented hidden costs beyond list price
  • Contracts auto-renew — 30 days written notice before subscription term end. Either party can give notice of non-renewal at least 30 days before the end of a subscription term to stop auto-renewal. For Enterprise contracts, the deadline is typically 30-90 days before contract end. Monthly plans receive renewal notices 30 days before billing date; annual plans receive 60-90 days notice.
Last verified: | Sources: 1 pricing pages and reviews

How much does Slack cost?

Slack offers 4 pricing plans, starting with a free tier and scaling to custom enterprise pricing. Plans include Free (free), Pro at $7.25/user/month, Business+ at $15/user/month, Enterprise+ (custom pricing).

Slack Pricing Overview

Slack has 4 pricing plans, including a free tier. Paid plans range from $0 to $15/user/month. The Free plan is free and is best for small teams getting started. The Pro plan costs $7.25/user/month, best for growing teams that need full message history. The Business+ plan costs $15/user/month, best for organizations requiring compliance and advanced identity management. The Enterprise+ plan requires contacting sales for a custom quote and is designed for large enterprises needing multiple workspaces and enterprise-grade security.

Slack contracts auto-renew.

There are at least 7 documented hidden costs beyond Slack's list price, including implementation, training, and add-on fees.

This pricing was last verified in June 9, 2026 from 1 independent source.

Try Slack Free

Slack costs $7.25–$15/user/month on annual billing as of 2026. The Pro plan is $7.25/user/month and the Business+ plan is $15/user/month. A Free plan is also available with a 90-day message history limit. Enterprise+ pricing is custom and requires contacting sales.

Pro includes unlimited message history, unlimited app integrations, and group calls. Business+ adds advanced Slack AI features, a 99.99% uptime SLA, compliance data exports, and SCIM provisioning. Both plans are billed annually at the prices above; monthly billing is available at higher per-seat rates.

SAML-based SSO is available starting with the Pro plan. Teams that need enterprise-grade security controls, custom data residency, or multiple connected workspaces should look at Enterprise+ and contact Slack's sales team for a quote.

How Slack Pricing Compares

Compare Slack pricing against top alternatives in Communication.

Microsoft Teams $0-12.50/user/mo Compare → Discord $0-4.99/user/mo Compare → Zoom $0-25.99/user/mo Compare →

Compare Slack vs Alternatives

Before committing to Slack, compare pricing with these 3 alternatives in the same category.

VSMicrosoft Teams
Free

Organizations already using Microsoft 365

Full comparison
VSDiscord
Free

Tech teams and communities wanting free, powerful voice chat

Full comparison
VSZoom
Free

Teams prioritizing video meetings over chat

Full comparison

All Slack alternatives & migration guides

What Companies Actually Pay for Slack

Review scores
TrustRadius 8.7out of 10 (5)
Trustpilot 1.3out of 5 (26)
Third-party review aggregates, as of Jul 2026
Top pricing complaints
Billing disputes and no-refund policyPoor customer support response timesPer-user pricing too expensive for growing teamsDeceptive upgrade UI that bills entire workspace
Source: Vendr buyer database — median calculated from 0 real purchase transactions. Savings figure reflects negotiated discounts reported by buyers.

Slack Year 1 Total Cost by Company Size

Real deployment costs including licenses, implementation, training, and admin — not just the sticker price.

Small Team (10 users, Pro plan) $870 Year 1 total
$72.50/month
Total $870

10-person team on the Pro plan, billed annually. Unlocks full message history and up to 10,000 app integrations.

Mid-Size Team (50 users, Business+ plan) $9,000 Year 1 total
$750/month
Total $9,000

50-person team on Business+ for advanced compliance, data exports, and 99.99% SLA. Common for companies with compliance requirements.

Large Organization (100 users, negotiated Pro) ~$50,300/year (negotiated from $57,160 median) Year 1 total
median $57,160
Total ~$50,300/year (negotiated from $57,160 median)

100-seat team negotiating via Vendr channel with average 12% savings. Representative of median deal size.

Current tier data — Pro at $7.25/user/month

How Slack Pricing Compares

Software Starting Price Top Price
Slack Free $15/user/month
Discord Free $9.99/user/month
Google Meet Free $22/user/month
Loom Free $20/user/month
Microsoft Teams $4/user/month $22/user/month
RingCentral $30/user/month $45/user/month

Detailed pricing comparisons:

Browse all Communication pricing →

7 Slack Hidden Costs Beyond the List Price

Beyond the listed price, Slack has at least 7 documented hidden costs that can significantly increase total cost of ownership.

Watch for 7 hidden costs
  • SSO/SAML Requires Enterprise Plan $7-15/user/month
    high 2 sources
    Hacker News "Almost doubles in price to get SAML. $5.83 /user/mo increase."
    Hacker News "Asana and Slack will not let you SAML from Okta unless you upgrade to their most expensive tier, but Google SSO is always free."
  • Unexpected Workspace-Wide Billing on Upgrade $7.25-15/user/month for all workspace members
    critical 1 source
    Trustpilot "The fee on the screen said $7 per user. I am the only user I have control over, so I was expecting a $7 charge. Nope. I upgraded the entire group of 60 people. I got charged $500 a month twice before I noticed the charges."
  • No Refunds on Cancelled or Unused Subscriptions 100% of prepaid subscription cost lost
    high 2 sources
    Trustpilot "Cancelled the subscription the same day as renewal, they stop the pro featured right away even if I already paid for the month, kept the money and give me back £7 in Slack credit."
    Trustpilot "I cancelled my Slack membership as I have not used the tool for a long time now, and the only way to get any benefit from the credits is by resubscribing to their services."
  • Slack AI Add-On Costs 10-25% of license costs
    medium 1 source
    Hacker News "After my 30-day trial on Slack AI ran out I decided to build my own version: Catch Up. I really enjoyed the ability to make summaries of channels to catch up on the latest activities."
  • Per-User Pricing Scales Steeply for Growing Teams $7.25-15/user/month × all active users
    high 3 sources
    Hacker News "Slack's pricing model is way too expensive and their 1:6 Paid-to-Unpaid user ratio is evidence of that."
    Hacker News "A nonprofit I help out just moved from Slack to Discord for a very simple reason: Slack pricing was too expensive, and as the amount of people increased, the price continues to climb."
    Trustpilot "Pricing can feel a bit high compared to other tools as well."
  • Sales Contract Lock-In and Auto-Renewal 12+ months of subscription at full price
    high 2 sources
    Trustpilot "We are a small commercial company who got conned into signing a contract for the SLACK Platform by the Slack Sales Force Team. We realized this just after signing the contract when the sales team rene..."
    Reddit "Salesforce are the worst. Slack had such a good model for pricing - why destroy it?"
  • Poor Support Quality Across All Tiers 5-15% of license costs
    medium 2 sources
    Trustpilot "In both cases the experience was quite bad. Free: non-existent! Tickets are open for +7 days and reply despite follow ups. Paid: After 2-3 days you get a..."
    Trustpilot "We're using the Business+ plan for 30 people, and we've asked for help through multiple emails, but they don't seem to care."
Tip

Ask your Slack sales rep about these costs upfront. Getting them in writing before signing can save you from surprise charges later.

Full hidden costs breakdown →

Intelligence sourced from 7 independent sources
Hacker News Tech community Trustpilot Consumer reviews Reddit User discussions official industry Vendr Verified buyer transactions TrustRadius Enterprise reviews
Key claims include inline source attribution. Data verified against multiple independent sources. 34 source citations total.

Slack Contract Terms

Slack contracts auto-renew. Changes require 30 days written notice before subscription term end. Either party can give notice of non-renewal at least 30 days before the end of a subscription term to stop auto-renewal. For Enterprise contracts, the deadline is typically 30-90 days before contract end. Monthly plans receive renewal notices 30 days before billing date; annual plans receive 60-90 days notice.. These terms are sourced from verified buyer experiences.

Contract Terms
Auto-Renewal Yes
Cancellation Notice 30 days written notice before subscription term end. Either party can give notice of non-renewal at least 30 days before the end of a subscription term to stop auto-renewal. For Enterprise contracts, the deadline is typically 30-90 days before contract end. Monthly plans receive renewal notices 30 days before billing date; annual plans receive 60-90 days notice.
Minimum Commitment Pro and Business+ have no published minimum seat count, but even 2-person teams pay for a minimum of 3 seats. Enterprise+ requires annual commitment, typically 1-3 year terms. Legacy Enterprise Select required a minimum of 9 users at $240/user/year on annual agreements only. Multi-year contracts (2-3 years) can save 15-25% compared to annual renewals.
Price Escalation Since the Salesforce acquisition, Slack enforces a mandatory 9% year-over-year price increase at renewal unless specific conditions are met: demonstrating 15-20% ARR growth, committing to multi-year contracts, or adding new Salesforce products. Over four years, the 9% annual uplift adds approximately $38,313 to cumulative subscription cost for a mid-size deployment — a 38% total increase. Business+ pricing increased 20% in 2025 (from $12.50 to $15/user/month) to reflect bundled AI features. Enterprise Select and Enterprise Grid were consolidated into Enterprise+ in August 2024. Annual contracts often include language allowing 5-7% price increases at renewal.
Based on 7 verified sources

How to Negotiate Slack Pricing

Slack contracts are negotiable — buyers save an average of 14% off list price. These 13 tactics are sourced from real buyer experiences and procurement specialists.

Negotiation Playbook 13 tactics
Start with Free Plan and Upgrade Selectively high success

Begin with the free plan and only upgrade when you hit the 90-day message history limit or genuinely need paid features. Many teams find the free tier sufficient for basic communication needs.

HN discussion on Slack pricing strategy
Consider Alternatives for Large Teams high success

For teams over 50 users, evaluate alternatives like Microsoft Teams (bundled with Office 365) or Discord (free). Per-user pricing makes Slack increasingly expensive at scale.

HN and Reddit discussions on Slack vs Teams vs Discord
Leverage Competitor Pricing high success

Microsoft Teams is included in Office 365 at no additional per-user cost. Use this as leverage when negotiating with Slack's sales team — especially at renewal time. Many enterprises have successfully negotiated 10-15% discounts by citing the Teams bundle.

HN community discussion
Negotiate at Fiscal Year End high success

Salesforce (Slack's parent company) has a January 31 fiscal year end. Push for deals in December or January when sales reps are most motivated to close deals and hit annual quotas.

Vendr (deal flow) — 12% average savings across 1,458 purchases
Buy for Fewer Active Users high success

Slack charges only for active users (those who send at least one message per billing period). Audit your workspace to identify inactive users and remove them before renewal to reduce your seat count.

Vendr marketplace data
Consider Microsoft Teams as leverage medium success

Teams is bundled free with Office 365 and offers similar functionality. Use this as a pricing negotiation point with Slack, especially for enterprise contracts.

Hacker News discussion noting enterprises switching from Slack to Teams due to $0 incremental cost
Evaluate actual user count needs medium success

Slack's per-user pricing can be reduced by carefully managing who needs paid access versus free tier access. Consider separating teams or using alternative solutions for certain groups.

Multiple HN comments about per-user pricing becoming expensive at scale
Negotiate Annual Billing Discount medium success

Slack offers annual billing at a discount vs monthly. The listed annual price ($105/user/year for Pro) represents a 12-month commitment but saves ~15% vs monthly billing.

Slack pricing page and HN discussions
Use Google SSO Instead of SAML medium success

If possible, use Google Workspace SSO (free on all Slack tiers) instead of SAML-based SSO (requires Business+ tier). This avoids the $5.83/user/month upcharge for SAML.

HN discussion on SSO pricing
Request Multi-Year Discount medium success

Committing to a 2-3 year contract can unlock meaningful discounts beyond the standard annual billing rate. Vendr data shows buyers save 12% on average, with multi-year commitments often achieving higher savings.

Vendr (deal flow)
Use Nonprofit or Academic Status medium success

Nonprofits and educational institutions may qualify for discounted rates. Slack has historically offered discounted plans for qualifying organizations. Verify eligibility directly with Slack's sales team.

HN community discussion
Escalate to Account Executive for Custom Pricing medium success

Self-serve pricing is list price. Engaging directly with a Slack account executive — especially for 25+ seat teams — opens access to custom pricing, bundled features, and flexibility on contract terms that aren't available on the pricing page.

Vendr marketplace data
Look for nonprofit or startup pricing low success

Some organizations have successfully moved to free alternatives like Discord when Slack pricing became prohibitive. Check if Slack offers discounted pricing for nonprofits or early-stage companies.

HN comment about nonprofit switching from Slack to Discord due to pricing
High success Medium Low / difficult

Full negotiation guide →

Slack Price History

Pricing changes CostBench has tracked for Slack, verified across 6 snapshots going back to 2024Q2.

  1. Slack price decrease

    Highest tier decreased from $18 to $15/month

    -16.7%

  2. Slack Pro decrease

    Pro tier decreased from $9 to $7/month

    -17.1%

  3. Slack price increase

    Highest tier increased from $13 to $18/month

    +44%

  4. Slack tier renamed

    "Enterprise" renamed to "Enterprise+"

  5. Slack price decrease

    Highest tier decreased from $29 to $13/month

    -56.9%

  6. Slack Pro decrease

    Pro tier decreased from $29 to $9/month

    -69.8%

  7. Slack Business+ decrease

    Business+ tier decreased from $39 to $13/month

    -67.9%

  8. Slack tier renamed

    "Enterprise Grid" renamed to "Enterprise"

  9. Slack price increase

    Highest tier increased from $13 to $29/month

    +132%

  10. Slack Pro increase

    Pro tier increased from $9 to $29/month

    +231.4%

  11. Slack Business+ increase

    Business+ tier increased from $13 to $39/month

    +212%

Price increased 1% over 2.3 years

View Slack's full price history →

Slack Pricing FAQ

01 How much does Slack cost per user?

Slack Pro costs $7.25/user/month on annual billing. Business+ costs $15/user/month on annual billing. Both plans also support monthly billing at higher rates. Enterprise+ is custom-priced through Slack's sales team.

02 Does Slack have a free plan?

Yes. Slack's Free plan has no per-user charge but limits message history to the most recent 90 days and caps app integrations at 10. Most teams that need full message access will need to upgrade to Pro at $7.25/user/month.

03 What is the cheapest paid Slack plan?

The cheapest paid plan is Pro at $7.25/user/month (annual billing). It includes unlimited message history, unlimited app integrations, group calls, and SAML-based SSO.

04 What is the difference between Slack Pro and Business+?

Pro ($7.25/user/month) covers unlimited history, integrations, and group calls. Business+ ($15/user/month) adds advanced Slack AI features including conversation summaries and channel recaps, a 99.99% uptime SLA, compliance-grade data exports, and SCIM provisioning. Choose Business+ if your team needs AI-powered features or compliance controls.

05 What does Slack Enterprise+ cost?

Enterprise+ does not have a published price. It is sold through Slack's sales team and priced based on your organization's size and requirements. It includes multiple connected workspaces, enterprise-grade AI, custom data residency, and advanced security controls.

06 How does Slack compare to Microsoft Teams on price?

Slack Pro starts at $7.25/user/month. Microsoft Teams is included with many Microsoft 365 subscriptions. Organizations already paying for Microsoft 365 often find Teams is effectively no additional cost. Slack positions itself as a premium tool with a stronger integration ecosystem and channel-based workflow.

07 What happens to messages older than 90 days on Slack's free plan?

On the Free plan, Slack hides (but does not delete) messages older than 90 days. If you upgrade to the Pro plan ($7.25/user/month) or higher, you regain access to those messages — up to 12 months on Pro and unlimited history on Business+ and Enterprise Grid.

08 Does upgrading to a paid plan affect all users in my workspace?

Yes. When you upgrade a Slack workspace, the paid plan applies to all active members of that workspace, not just your own account. Slack bills per active user across the workspace. If you're not a workspace admin, you cannot upgrade just your own access without affecting billing for all members.

09 Can I get a refund if I cancel my Slack subscription?

Slack's policy does not issue refunds to the original payment method. If you cancel mid-term, any remaining credit is issued as Slack account credits, which can only be used by resubscribing to a paid plan. Cancellation on the same day as renewal also stops paid features immediately, with no prorated refund.

10 Does Slack support SSO (Single Sign-On) with Okta or SAML?

SAML-based SSO (compatible with Okta, Ping, OneLogin, etc.) requires the Enterprise Grid plan, which is custom-priced. Google SSO is available on lower tiers for free. If your organization uses a dedicated identity provider for SAML, expect to pay Enterprise Grid pricing.

11 How much can I negotiate off Slack's list price?

Based on Vendr data from 1,458 purchases, buyers save an average of 12% off list price. The median annual spend is $57,160. Negotiation is most effective at fiscal year end (January 31 for Salesforce) or when leveraging competing bids from Microsoft Teams (bundled in Office 365).

Is this pricing incorrect? — we'll verify and update it.