Slack Pricing 2026: Free, Pro, Business+ & Enterprise+

Slack pricing in October 2026 is straightforward at the self-serve level: Free at $0, Pro at $7.25 per active user/month billed annually or $8.75 monthly, and Business+ at $15 annually or $18 monthly. Slack's live pricing page now also publishes Enterprise+ at $45/user/month billed annually, although enterprise customers still contact sales and may receive negotiated terms. Temporary 50%-off promotions are excluded from Toollers' standard list-price analysis.

Slack Free: $0

Slack Free is free forever and is suitable for small teams that need core messaging without long-term searchable history.

The plan allows unlimited public and private channels, direct messages, file sharing and 1:1 huddles. It also supports one-to-one external messaging through Slack Connect.

The two commercial limits that matter most are 90 days of searchable message/file history and a maximum of 10 installed third-party or custom apps.

Free message-history limits

On Free, users can search the most recent 90 days of messages and files. Slack also documents retention behavior that can delete older free-workspace customer data on a rolling basis.

This means Free is not a good choice when the organization expects Slack to serve as permanent institutional memory.

If teams frequently need decisions, files or project context older than three months, the history benefit alone can justify Pro.

Free app limit

Free workspaces can install up to 10 third-party or custom apps. That may be enough for a very small team using only a calendar, storage service, issue tracker and a few core integrations.

The limit becomes restrictive quickly for SaaS-heavy teams connecting CRM, support, monitoring, development, automation, meetings and AI tools.

Paid plans remove this cap and allow unlimited app integrations, subject to each third party's own subscription costs.

Free huddles and Slack Connect

Free supports huddles with a maximum of two participants. Paid plans allow group huddles with up to 50 participants.

Slack Connect on Free is limited to 1:1 external direct messaging, while paid plans support broader external collaboration in group conversations and channels.

Teams that collaborate frequently with agencies, vendors or customers should consider this difference when evaluating Pro.

Slack Pro: $7.25 annual or $8.75 monthly

Pro is $7.25 per active user per month when billed annually or $8.75 with month-to-month billing.

It removes the Free plan's biggest collaboration restrictions: full searchable message history, unlimited app integrations, group huddles and richer Slack Connect collaboration.

Pro also adds tools such as canvases, lists and Workflow Builder, making it more than a messaging upgrade.

Pro annual cost examples

At $7.25 per active user/month, 10 active users cost $72.50 per month equivalent or $870 per year before tax and add-ons.

Fifty active users cost $362.50 per month equivalent or $4,350 per year. One hundred active users cost $725 per month equivalent or $8,700 per year.

Slack's Fair Billing can reduce effective cost when paid members become inactive during the term.

Pro AI features

Slack's current plan structure provides paid AI features such as conversation summaries and huddle notes, with more advanced AI concentrated higher in the lineup.

For many teams, these tools can reduce catch-up time after meetings or busy channel activity.

Buyers should still test AI against real internal questions and measure whether summaries reduce work enough to affect the value calculation.

Business+: $15 annual or $18 monthly

Business+ costs $15 per active user per month billed annually or $18 with monthly billing.

It includes the collaboration features of Pro and adds stronger AI, administration, identity and security.

Slack highlights SAML-based single sign-on, SCIM user management, native DLP support and 24/7 customer support with a four-hour response target.

Business+ AI value

Business+ adds advanced AI features such as AI search, daily recaps and file summaries on top of lower-tier summarization capabilities.

These features become more valuable as Slack grows from a chat application into a large repository of organizational context.

A small team may not recover the additional $7.75 annual-billed price difference between Pro and Business+ from AI alone, but larger knowledge-heavy organizations may.

Business+ annual cost examples

At $15 per active user/month billed annually, 10 active users cost $150 per month equivalent or $1,800 per year.

Fifty active users cost $750 per month equivalent or $9,000 per year. One hundred active users cost $1,500 per month equivalent or $18,000 per year.

The Business+ decision should therefore be based on governance and AI requirements, not simply "more Slack."

Enterprise+: $45/user/month annual reference

Slack's current pricing page now lists Enterprise+ at $45 per user per month when billed annually. Enterprise buyers still contact sales, so the public figure is a useful budget reference rather than a guarantee that every agreement closes at exactly $45.

The plan is designed for large organizations needing the deepest enterprise AI/search, security, administration and compliance features.

Older Toollers research recorded Enterprise+ as custom-only. The October 10 live pricing page supersedes that older no-number assumption.

Enterprise+ cost modeling

At the $45 public annual reference, 100 users equate to $4,500 per month or $54,000 per year before negotiated terms and optional services.

One thousand users would equate to a $540,000 annual list reference. At that scale, negotiated enterprise pricing, deployment support and add-ons can materially change actual cost.

Large organizations should compare Slack against Microsoft Teams bundled into existing Microsoft licensing rather than looking only at list prices.

Annual versus monthly billing

Pro costs $7.25 annually versus $8.75 monthly, a $1.50/user monthly difference. Business+ costs $15 annually versus $18 monthly, a $3/user monthly difference.

Annual billing therefore saves roughly 17% on Pro and Business+ relative to the current monthly list rates.

Monthly billing offers more flexibility, while annual billing makes sense after the team has validated adoption and workspace structure.

Fair Billing explained

Slack's Fair Billing Policy applies to eligible Slack plans and add-ons purchased through Slack's self-serve billing methods.

Paid workspaces are billed for active members. If someone becomes inactive, Slack can create a prorated credit for the unused portion of the billing period.

When an inactive member becomes active again, Slack charges the prorated amount for the remaining period.

What counts as inactive

Slack's current billing guidance generally treats a member who has not used Slack for more than 28 days as inactive for billing purposes.

Deactivated members are also non-billable until reactivated. Workspace Owners and Admins can review member billing status.

This policy can make Slack more cost-efficient than collaboration tools that bill every provisioned seat regardless of actual use.

Slack credits are not cash

Fair Billing and certain downgrades can create Slack credits. Those credits are automatically used against future Slack charges.

Slack states that credits have no currency or exchange value, are non-transferable and non-refundable.

Credits also expire after termination of the paid Slack plan, so they should not be treated as a cash refund when modeling cancellation risk.

Paid trials

Workspace Owners or Admins can request a free trial of Pro or Business+. Slack says no credit card is required to start the requested trial.

The trial automatically ends and the workspace reverts to Free if the customer does not upgrade.

Slack does not publish one universal trial length for every workspace in its current help guidance, so buyers should confirm the actual end date displayed in their workspace.

Trial limitations

Business+ trials do not include every administrative export capability, and some external file-sharing features require a fully paid plan rather than a trial.

For normal evaluation, teams should focus on history, integrations, huddles, Slack Connect, AI and workflow behavior.

A structured two-week internal pilot is often more informative than inviting an entire company immediately.

Canceling or downgrading

Workspace owners can downgrade Business+ to Pro or move a paid workspace to Free. Slack lets customers choose whether the change should happen immediately or at the next renewal date in eligible self-serve situations.

An immediate downgrade can create account credits for unused paid time, but those credits remain subject to Slack's no-cash-value policy.

After a paid trial has ended, Slack's guidance states that canceling stops future billing but does not normally refund payments already made.

Pro versus Business+

Pro is the right plan for most small and midsize teams because it fixes Free's biggest structural limitations without doubling the price.

Business+ should be considered when the team needs SAML SSO, SCIM, DLP, advanced AI search/recaps or higher support commitments.

If none of those capabilities have a clear owner or business case, Business+ can become an expensive status upgrade rather than a productivity investment.

Slack versus Microsoft Teams pricing

Microsoft Teams Free costs $0 and Teams Essentials is only $4/user/month paid yearly. Microsoft 365 Business Basic with Teams is $7 and Business Standard with Teams is $14.

That makes Microsoft highly competitive when a company already needs Outlook, OneDrive, SharePoint and Office productivity apps.

Slack can justify the premium through its app ecosystem, channel experience, Slack Connect and workflow culture, especially for SaaS-heavy product teams.

Slack versus ClickUp pricing

ClickUp Free Forever includes unlimited free-plan members, while Unlimited is $7/user/month billed yearly and Business is $12.

ClickUp bundles structured tasks, projects, docs, time tracking and Chat into one work-management platform. Slack is stronger for communication and integrations but often needs a separate project-management tool.

A team already paying for ClickUp may decide whether Slack delivers enough communication quality to justify a second per-seat subscription.

Slack versus Notion pricing

Notion Free is $0, Plus is $10/member/month on yearly billing and Business is $20. Notion emphasizes docs, knowledge, projects and AI rather than real-time team chat.

Many teams use both products because Slack is better for fast conversation while Notion is better for durable documentation.

If the main problem is knowledge organization rather than communication speed, Notion can deliver more direct value per seat.

Slack versus monday.com pricing

monday.com Free supports up to two seats. Current annual pricing is $9/seat for Basic, $12 for Standard and $19 for Pro.

monday.com is more structured around boards, timelines, automation and project workflows. Slack is more fluid and communication-centered.

Teams should avoid paying for overlapping workflow features without deciding which platform owns tasks, project status and automation.

Hidden and indirect Slack costs

Slack's standard plan prices are transparent, but total cost can include third-party app subscriptions, Salesforce products, enterprise security tooling and the internal time required to govern channels and notifications.

Organizations may also pay separately for project management, documentation, video conferencing or knowledge systems because Slack does not replace every work category.

The right TCO model therefore includes the broader software stack, not just Slack's per-user fee.

Which plan is best?

Use Free for lightweight teams that can live with 90-day search history and ten apps. Choose Pro when Slack is becoming the team's operating communication layer.

Choose Business+ when SSO/SCIM, DLP, advanced AI or stronger support have clear business value. Consider Enterprise+ only when organization-scale administration, AI/search and compliance justify enterprise economics.

For most growing companies, Pro is the sensible default and the plan to benchmark against competitors.

Continue reading about Slack

• Slack tool profile
• Slack Review: Features, Pricing, Pros and Cons
• Slack Alternatives 2026: Teams, Notion, ClickUp & monday.com