Pay for Slack

Slack’s public list prices (checked 2026-09-24) are per active member per month. The Free plan costs nothing and has no time limit. Pro is $8.75 per member a month when you pay monthly, and lifts the 90-day history cap, allows unlimited app integrations, and opens up group huddles and group Slack Connect. Business+ is $18 per member a month billed monthly and adds the advanced AI tier, SAML single sign-on, SCIM user management and data loss prevention. Enterprise+ has no list price and is sold through Slack’s sales team. Paying annually costs less per member than paying monthly — the exact annual figure is shown on Slack’s pricing page and at checkout. Slack also runs introductory discounts from time to time, so treat the number the Billing page shows you as the one that counts.

The part worth understanding before you put a card down is Slack’s Fair Billing Policy, because it makes the bill move on its own. You are charged only for members who are actually using Slack. Workspace owners, admins, full members and multi-channel guests are billable; single-channel guests and bots are free. Add someone partway through the billing period and Slack prorates the cost for the days remaining and bills it on your next statement. If a member stops using Slack for more than 28 days, or an admin deactivates them, Slack deposits a prorated credit for the unused time and applies it to future charges. If everyone goes inactive you are still billed for one member unless you downgrade to the free plan. Those credits have no cash value, are non-refundable, and expire when the paid plan ends.

To pay, go to your workspace’s Billing page, choose Pro or Business+, and add the card. Outside the United States and Canada, Slack accepts American Express, JCB, Maestro, Mastercard and Visa — so a Mehbit virtual Visa or Mastercard is on the list. The card must have 16 digits and a CVV, which a Mehbit card does. Slack charges the card the day you buy the plan and again on every renewal date, so keep the balance topped up before renewal rather than after: a card with nothing on it will be declined even though Slack itself is happy to take it. Slack’s other payment methods do not help here — ACH is for US workspaces with a US bank account, Apple Pay is US and Canada only, and SEPA direct debit is for euro payments inside the EU.

Two billing details catch people out. First, the currency: Slack detects where your workspace is based when you create it and bills you in one of five currencies — US dollars, British pounds, euros, Indian rupees or Japanese yen. You do not pick it at checkout, and changing it means asking Slack support, with the change taking effect on the next billing cycle. If your workspace ends up on a non-dollar currency, the amount taken off a dollar-funded Mehbit card depends on the conversion rate that day. Second, invoicing is not a way around the card: Slack only offers it on annual billing, for workspaces with at least three active members and at least 58 members on Pro or 28 on Business+ (or $5,000 or more on a discounted plan), and it charges a remittance fee. For a small team, the card is the only realistic route.

Now the honest caveat, and on Slack it is about where you log in from, not what card you use. Slack is a US company and applies US trade sanctions by location. In December 2018 it ran a location-based compliance sweep, deactivated a batch of accounts by mistake, apologised publicly, and set out the rule it still works to: it suspends accounts while they are in Iran and logging in from Iran-based IP addresses, and restores full access once the person is back in a non-sanctioned market. It said at the time that it does not block anyone on nationality or ethnicity. What this means in practice is that a funded Mehbit card solves the payment half of the problem and nothing else — read Slack’s terms, understand that your workspace and its history sit with a US provider, and do not put anything on Slack you cannot afford to lose access to. Those terms are between you and Slack; paying with a working card does not change them.