Slack vs Teams: Which is Better for Your Business in 2026?

Microsoft Teams is the better choice for many businesses, especially those who are already on the Microsoft 365 ecosystem. It offers deeper productivity integrations, stronger compliance controls, and a significantly lower starting cost of $4 per user per month compared to Slack’s $7.25 per user per month on annual billing.

Slack is the better choice for teams that rely heavily on third-party integrations, work outside the Microsoft ecosystem, and prioritize a developer-first, channel-centric communication workflows and experience.

Both are powerful platforms that enable seamless communication and collaboration. Does migrating from Slack to Teams benefit your business by leveraging Teams’ deep integration with Microsoft 365 apps?

This article compares Slack vs Teams across pricing, messaging, integrations, video conferencing, file collaboration, security, and more, to help you decide.

1. Slack Vs Teams- Features Overview

Both Slack and Microsoft Teams share many of the same core features. You can share files and folders on both platforms, use video conferencing for collaborating, and start a group or private one-to-one chats.

The major difference is that you can access the full Microsoft Office productivity suite and phone support with Microsoft Teams. Slack is a communication-first platform and does not provide direct phone support or native Office document editing.

Check out the table below to compare features between Slack and Teams.

NOTE: The pricing figures and information on features and functionalities are presented as of May 2026 data. They may change with Slack and Microsoft’s product updates.

2. Comparing Slack With Teams- Pricing Plans

Slack and Teams provide a free version, allowing you to evaluate features before committing to a paid plan.

Slack provides unlimited public and private channels and file sharing, 5GB of storage, and 10 app integrations on the free plan. However, the searchable message history is limited to 90 days. Messages older than one year are permanently deleted, even if you later upgrade.

On the other hand, Teams offers unlimited chat messages and guest access on its free tier, with unlimited message history. File attachments in free chat are limited to 2GB, and cloud storage is 5GB per user.

Slack Pricing(2026)

NOTE: All the pricing figures are taken from Slack’s official pricing as of May 2026. They may change as and when Slack updates pricing.

Slack increases Business+ pricing from $12.50 to $15/user/month (annual) in June 2025, when advanced AI features were bundled into that tier. Teams that need SSO, compliance exports, or advanced Slack AI must now be on Business+ or above.

Microsoft Teams Pricing(2026)

NOTE: All the pricing figures are taken from Microsoft’s official pricing as of May 2026. They may change as and when Microsoft updates pricing.

Pricing for Microsoft 365 Business Standard increases to $14.50/user/month for new subscriptions and renewals from July 2026.

From the pricing comparison above, the cost differences are clear. Teams Essential cost $4/user/month, which is nearly half the entry-level Slack Pro price of $7.25/user/month on annual billing.

3. Teams Vs Slack – Messaging Capabilities

In both Slack and Teams, users can communicate one-on-one or create group chats. Users can edit, remove, pin, react to messages, and mention another user using the “@” symbol. Users can easily start a new thread, share files, and integrate other applications in both platforms.

The most significant difference between these platforms is that Microsoft Teams offers advanced formatting options for any text sent in conversations, including creating bullet lists, modifying colors, and changing fonts. Teams also introduced structured conversation threads within channels that help keep discussions more organized at scale.

Slack’s real-time messaging experience is widely considered more intuitive and faster for day-to-day communication. Its keyboard shortcuts, sidebar design, and channel management make it suitable for teams whose workflows are mostly based on chats.

For real-time messaging across a large organization, Microsoft Teams has an edge due to its deep Microsoft 365 integration. And for fast, developer-friendly, and high-volume messaging, Slack is suitable.

4. Slack Vs Microsoft Teams – User Interface

The user interface is one of the biggest differences between Slack and Microsoft Teams. Slack’s UI is clean, sidebar-centric, and channel-focused. Navigation is simple, which lowers the learning curve for new users.

On the other hand, Microsoft Teams’ user interface is more feature packed. Its productivity-focused interface includes tabs for Chat, Teams, Calendar, Calls, and Files. And it goes without saying that the onboarding curve is a bit steeper.

If your team requires fast and lightweight communication, Slack is a suitable choice. And if your team needs a unified hub that connects messaging, meeting, calendar, and Office documents, Microsoft Teams is a better choice.

5. Slack Vs Microsoft Teams- Built-In App Integrations

Microsoft Teams comes with deep integration of the Office 365 apps, giving you full access to create, edit, format Word, Excel, PowerPoint, and other Office Microsoft 365 applications and the ability to directly within Teams.

Slack also has Microsoft integrations, such as Outlook calendar and email, OneDrive, and SharePoint, but they aren’t as deep as Teams’ native Microsoft 365 integrations.

Where Slack leads is in the third-party app ecosystem. Slack connects with 2,600+ apps across various categories. Microsoft Teams has 700+ integrations, which is substantial but lesser compared to Slack’s support.

6. Slack Against Teams – Audio and Video Conferencing

Slack offers unlimited one-to-one voice and video calls via Slack Huddles in its free version. Upgrading to a paid plan allows you to make group audio and video conferencing up to 50 participants.

Microsoft Teams allows hosting meetings with up to 100 attendees in its free version, which upgrades to 300 participants for Business plans. Hence, Microsoft Teams is recommended for enterprise customers with large teams who need all-hands meetings, webinars, and large cross-department video sessions.

7. Slack Vs Teams- Easy File Sharing and Collaboration

Microsoft Teams allows you to share files and collaborate with team members simultaneously in real-time. Because Teams is natively integrated with SharePoint which makes searching, version controlling, and editing directly inside Teams more seamless.

On the other hand, Slack does not have native in-app document editing functionality. You can share files by dragging and dropping them into a channel, but to make edits, you need to download the file, make changes externally, and re-share it. Although Slack integrates with OneDrive, Google Drive, and Box for collaborative editing, these are third-party apps, not native tools.

With all chats, conversations, shared files, online meetings, tasks assigned, and more available in one app, MS Teams improves collaboration and productivity. Your team can access information and content anywhere, anytime, and on any device.

8. Comparing Slack With Teams- Manage Better With Multiple Sub-Channels

Microsoft Teams allows users to create several channels inside a team, making it easier to manage data better and keep track of the growing number of channels. You can also create private channels inside a team to limit access to confidential data. When a Team is created, it automatically gets integrated with the other Office 365 apps, creating a SharePoint site, a shared mailbox, and a OneNote notebook.

On the other hand, users in Slack are unable to create sub-channels within channels. All channels exist at the same level in the sidebar. Slack addresses this partly through Slack Canvas. But the flat channel structure can be unfeasible for enterprise-level collaboration.

A quick read about Slack to Microsoft Teams Migration Best Practices for MSPs & IT Admins

9. Teams Vs Slack – Advanced Security and Compliance Capabilities

All of Slack’s and Microsoft Teams’ plans include key security features like two-factor authentication. Microsoft Teams has greater built-in security and compliance options, a key reason why enterprises in regulated industries prefer Teams.

You’ll also get full admin controls with Teams, including the ability to change manage members, owners, files, and SharePoint permissions. In addition, DLP and data governance rules can be applied to chat content and files in Teams through Microsoft Purview.

Microsoft Teams is an ideal choice for organizations with compliance requirements. For industries like healthcare, finance, and government, Teams’ compliance stack is more mature and deeply integrated, even in the lower-tier plans.

Slack’s compliance tools are available but require Enterprise Grid, which carries a significantly higher cost.

10. Slack vs Teams – Which Should Your Business Choose?

Here are some of the key highlights that may help you make an informed decision in choosing between Slack and Teams:

Choose Microsoft Teams if:

• You are already using Microsoft 365. Teams is included at no extra cost in Basic, Standard, and Premium plans.
• You need deep native integration with Word, Excel, PowerPoint, SharePoint, OneDrive, and Outlook.
• You need enterprise-grade compliance and security, including DLP, eDiscovery, FedRAMP, and HIPAA.
• You need to host large video meetings for up to 300 participants.
• Your organization is in a regulated industry.
• You are planning to migrate and consolidate your Slack and reduce tool sprawl.

Choose Slack if:

• Your team is deeply integrated with third-party tools outside of Microsoft’s ecosystem.
• You are a startup, SMB, or a remote-first organization not fully committed to Microsoft 365 ecosystem.
• You prioritize bot customizations, developer-first workflows, and a vast app marketplace.
• You prefer a channel-first, communication-centric experience without a steep learning curve.

Are You Currently on Slack and Planning to Migrate to Microsoft 365?

If your organization is already using Slack and is planning to migrate to Microsoft Teams and consolidate in Microsoft 365, having a proper migration partner by your side is extremely important.

Our Slack to Teams migration tool is purpose-built for migrating channels, group messages, direct messages, attachment and messaging features like mentions, replies, reactions, etc.

Our Slack to Teams migration methodology has evolved to include AI readiness. With this approach, we clean your chats in Slack and migrate them as AI-ready data to Teams, primed for secure AI retrieval.

Want to learn how this works for your company? Contact us today for a free assessment and consultation.

Slack vs Teams: Frequently Asked Questions

1. What is the difference between Slack and Microsoft Teams?

Slack is a communication-first platform built around channels, threads, and a third-party app marketplace with 2,600+ integrations. Microsoft Teams is a full productivity hub that combines chat with video meetings, file sharing, and deep integration with Microsoft 365 apps.

Teams is better for organizations in the Microsoft ecosystem, while Slack is better for teams relying on a diverse set of third-party tools.

2. Which is more profitable for businesses: Slack or Teams?

In terms of cost savings, Teams is the better option for businesses that are already on Microsoft 365. Businesses with existing Microsoft 365 subscriptions get Teams at no cost. On the other hand, Slack’s Pro plan starts at $7.25 USD per user per month annually, which is nearly double of Teams Essential at $4 per user per month.

3. Which is the best for businesses productivity-wise: Slack or Teams?

Both platforms are excellent choices for productivity at the end-user level. The main difference is Slack’s integrations-led productivity is not tied to a single software ecosystem whereas Team’s integrations that enable user productivity are under Microsoft 365’s single ecosystem.

4. Does Slack integrate with Microsoft 365?

Yes, Slack integrates with several Microsoft 365 apps, including OneDrive, SharePoint, Outlook, and Calendar. However, these integrations are not as deep or native as Teams’ built-in integration. You cannot edit Word, Excel or PowerPoint files directly inside Slack. Teams allows real-time co-editing of office files directly within the platform.

5. What happens to Slack data when migrating to Teams?

When migrating from Slack to Teams, your channels, direct messages, files, and conversation history are transferred to the corresponding Teams channel and chat histories. A professional migration platform like CloudFuze ensures complete preservation of Slack channels, direct messages, attachments, and messaging properties.

6. Are there security risks for businesses when switching from one platform to another?

It totally depends on the migration platform that businesses plan to use. Migration service providers trusted by Global enterprises, such as CloudFuze, are the best options for ensuring optimal security compliance.