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Slack pricing
Slack is billed per seat in USD. Source: https://slack.com/pricing, read on 24 Oct 2026.
Free tier: Free: 90-day message history, 1:1 huddles
List prices. A 50%-off-for-3-months promotion shown on the page is not applied, so the figures stay comparable.
Plans
| Plan | Billed monthly | Billed annually | Users included | Cost at 10 seats |
|---|---|---|---|---|
| Free | $0/seat/mo | $0/seat/mo | – | $0 |
| Pro | $8.75/seat/mo | $7.25/seat/mo | – | $870 |
| Business+ | $18/seat/mo | $15/seat/mo | – | $1,800 |
| Enterprise+Annual billing only; monthly not published | not published | $45/seat/mo | – | $5,400 |
Cost by team size
| Team | Cheapest plan | Annual cost | Effective |
|---|---|---|---|
| 5 seats | Free | $0 | $0/user/mo |
| 10 seats | Free | $0 | $0/user/mo |
| 25 seats | Free | $0 | $0/user/mo |
| 50 seats | Free | $0 | $0/user/mo |
| 100 seats | Free | $0 | $0/user/mo |
Annual vs monthly billing
- Pro: annual billing saves 17% ($18 per seat per year)
- Business+: annual billing saves 17% ($36 per seat per year)
Cheapest plan = lowest published price that covers the team size, annual billing. Per-seat plans scale linearly; flat plans jump at the user limit. Alternatives to Slack · Cost calculator