Slack

AcceptedHalocard is accepted

Halocard is accepted at Slack. Slack takes Visa, Mastercard, American Express, Discover, JCB, Diners and Maestro cards for Pro and Business+ plans, plus bank debit (ACH) and Apple Pay for eligible workspaces. Only the Workspace Owner, or the person who upgraded, can add or change the card. Prices exclude sales tax, and members added mid-cycle are billed prorated.

What payment methods does Slack accept?

Accepted

AcceptedHalocard
AcceptedCredit Cards
AcceptedDebit Cards
AcceptedBank Transfer (ACH)
Accepted with conditionsApple PayRolling out gradually to eligible workspaces at checkout.

Not accepted

Not acceptedPrepaid Cards
Not acceptedGoogle Pay
Not acceptedPayPal
Not acceptedCryptocurrency
Not acceptedStablecoins

What merchant category (MCC) is Slack?

5734Computer software stores

What is Halocard?

A US-issued Visa credit card that works like a debit card, with a separate virtual card for each merchant you pay. Lock a card to pause a subscription, or cancel it so the merchant can no longer charge that number.

Pay Slack from its own card and stop the renewals whenever you choose.

Get Your Halocard

Halocard on a phone, with Halocard metal cards fanned behind it

How to pay for Slack with Halocard

Create a card for Slack in Halocard

In your Halocard dashboard, create a new card, name it Slack and set a limit that covers what you are about to pay.

Open the Slack plans page and click Upgrade Now

Review the Pro and Business+ plans and click Upgrade Now on the one you want. Any member can upgrade by default, unless a Workspace Owner has restricted it.

Enter your organization info and card details

Type the card number, expiry date and CVV, and the company address Slack uses for tax. Select Review Order, then Purchase.

To switch an existing plan, open Billing Details

From your desktop, click Admin in the sidebar, select Manage billing and open the Billing Details tab. Below Payment methods, add the new card to make it your default payment method.

Official payment guidance from Slack

Supported payment methods: https://slack.com/help/articles/360002038947-Supported-payment-methods
Change your payment method: https://slack.com/help/articles/218915087-Manage-your-Slack-plan-and-billing-details
Failed or late payments: https://slack.com/help/articles/115004492008-Failed-or-late-payments

Get Your Halocard for Slack

Tips for successful payments at Slack

AcceptedHave the Workspace Owner, or the member who upgraded the workspace, add the card. Billing contacts can see statements but cannot change payment details.
AcceptedUse a card with 16 digits and a CVV. Slack requires both.
AcceptedEnter the company address with the right postal code. Slack uses it to work out sales tax, which plan prices do not include.
AcceptedAllow for new members. Slack bills a prorated amount for anyone added partway through the billing period, at the end of the month on annual plans.

Why do Slack payments decline?

Bank verification for the purchase did not complete: Slack may ask you to verify a purchase with your bank. Try the payment again, or use a different payment card.
A renewal payment failed: Slack emails Workspace Owners and billing contacts after 7, 14 and 21 days. Update the payment method on the Billing page before day 28, when the workspace moves to the Free plan.
The charge was higher than the plan price: Slack adds sales tax from your company address and prorated charges for new members. Make sure the card covers the full amount, then update the payment method on the Billing page.

Slack payment FAQ

How do I pay for Slack?

Slack takes credit cards for monthly or annual billing. Eligible workspaces can also pay by bank debit (ACH) or Apple Pay, and larger workspaces on annual billing can pay by self-serve invoice. The Workspace Owner manages the payment method on the Billing page.

Can I pay for Slack with PayPal?

No. PayPal is not on Slack's supported payment methods list. Slack lists credit cards, bank debit (ACH), Apple Pay, SEPA Direct Debit for workspaces paying in euros, and self-serve invoices.

When does Slack charge my card?

Slack charges the card on the day you buy a paid plan, then on each monthly or annual renewal date. On an annual plan, members added during the year are billed on the last day of the month.

Can I pay for Slack by invoice?

Yes, if you pay annually, have at least 3 active members, and have at least 58 members on Pro or 28 on Business+. Slack's bank details are on the invoice, payment is due within 30 days, and a remittance fee applies. Choose Pay by invoice at checkout or on the Billing Details tab.

What is Slack's Fair Billing Policy?

You pay only for active members. When a paid member has not used Slack for over 28 days, or is deactivated, Slack adds a prorated credit to your account for future payments. The credits are not refundable and expire when the paid plan ends.

About Slack

Slack is a messaging and work platform owned by Salesforce, built around channels, huddles, canvases, workflows and AI features. It sells Pro, Business+ and Enterprise+ plans priced per active member, with a free plan for small teams. Over 200,000 paying customers use it, including 77 of the Fortune 100.

Website: slack.com
Support: slack.com/help
Billed by: Slack Technologies LLC
Billing region: United States ($USD)
Products: Slack Pro, Slack Business+, Slack Enterprise+
Users: Over 200,000 paid customers, 2026