Answer
How much does Slack cost per user in 2026?
Short answer
Slack Pro is $7.25/user/month (annual), Business+ is $12.50, and Enterprise Grid is custom-priced but typically lands at $15–$22/user/month.
Details
List prices are billed annually; monthly billing adds ~20%. Enterprise Grid pricing depends on committed seats, workspace count, and compliance add-ons like HIPAA or data residency.
The real cost is not the sticker price — it's the 20–35% of seats that are inactive within 18 months of purchase. A 500-person Business+ account with a 28% ghost rate is wasting $21,000/year.
Automate this with SeatMap.AI
The audit path above works. It also takes hours per month per tool. SeatMap.AI runs it on a schedule, stages the reclaim actions for review, and shows you the annualized savings in real dollars.