Every price as published, on the date shown, in the linked document. Nothing here is second-hand.

Slack has 14 public contract lines, and costs from £68.28 per user a year, across 19 prices from 13 sources, newest Sep 2026.

Contract lines
14
Prices
19
Sources
13
Pricing units
2
Newest
Sep 2026

Slack publishes no price for Enterprise+. 14 contract prices are below.

Slack price per user a year, across 5 prices
$87median $150$216
middle halfmedian

How much does Slack cost?

Slack contract prices, per line, from public procurement records.

UK G-Cloud 15 · Insight · 3 lines
ProductUnit and bandTermPriceSource
Slack Proplan, UK G-Cloud 15per user per year1 yr£68.28G-Cloudp. 116
Slack Business Plusplan, UK G-Cloud 15per user per year1 yr£142.50G-Cloudp. 116
Slack Enterprise Plusplan, UK G-Cloud 15per user per year1 yr£427.51G-Cloudp. 116
11 awards to 11 buyers
BuyerProductTermAmountSource
Genomics England Limited14 Jul 2025Slack1 yr£150per user per year£90,000 totalfind-tender.service.gov.uk
Department for Business and Trade31 Jan 2024Slack Business+1 yr£46,800totalcontractsfinder.service.gov.uk
UK Government Digital Marketplace1 Jan 2024Slack Base Plans (UK G-Cloud)1 yr£40per unit per yearG-Cloud
Department for Education22 Jul 2023Slack Business+1 yr£170,867totalcontractsfinder.service.gov.uk
Department for Work and Pensions31 Mar 2022Slack1 yr£236,573totalcontractsfinder.service.gov.uk
NHS Digital30 Oct 2021Slack Enterprise Grid1 yr£414,000totalcontractsfinder.service.gov.uk
Ministry of Defence15 Oct 2021Slack Business+1 yr£11,700totalcontractsfinder.service.gov.uk
Executive Office of the President25 Mar 2020Slack5 yr$732,344totalUSAspending
Washington Headquarters Services (Dept of Defense)24 Sep 2018Slack Plus1 yr$45,000totalUSAspending
Department of the Air Force21 Sep 2018Slack1 yr$150per user per year$39,900 totalUSAspending
General Services Administration22 Jul 2015Slack3 yr$111,600totalUSAspending

Slack list prices

Slack price per user · 5 prices · newest Sep 2026
ProductPrice as statedPer user a yearEvidenceSource
Slack Free$0/ user/mo—List priceslack.com
Slack Pro$7.25/ user/mo$87List priceslack.com
Slack Pro$8.75/ user/mo$105List priceslack.com
Slack Business+$15/ user/mo$180List priceslack.com
Slack Business+$18/ user/mo$216List priceslack.com

Slack pricing model

Slack charges per active user per month, with annual billing offering a discount compared to monthly billing. The Free plan includes limited message history.

  • per user per month
  • per unit per year
  • per user per year

Slack pricing questions

What is Slack enterprise pricing?

Slack asks you to contact sales for Enterprise+. 14 contract lines below show what public buyers paid, across 12 contract vehicles and 11 named buyers.

How much does Slack cost?

Slack has 14 public contract lines, and costs from £68.28 per user a year, across 19 prices from 13 sources, newest Sep 2026.

Does Slack publish pricing?

Only in part. Slack prices its lower tiers and hides Enterprise+.

What is the Slack price per user?

Slack prices run $87 to $216 per user a year, median $150, across 5 prices.

How is Slack priced?

Slack charges per user per month and per unit per year, among 3 pricing units in total.

Where do these Slack prices come from?

From 13 primary documents on 5 domains, including applytosupply.digitalmarketplace.service.gov.uk, find-tender.service.gov.uk, contractsfinder.service.gov.uk. Nothing from resellers, review sites or pricing aggregators.

Slack pricing sources