Sales tax and VAT

Slack reserves the right charge applicable taxes as required by local law. Depending on their location, customers may be charged transaction taxes when purchasing the Standard, Plus or Enterprise Grid subscription.

The basics

  • Your company address is used to determine the correct tax rate, if applicable.
  • Prices shown on our website do not include sales tax or value-added tax.
  • Workspace Owners, or the person who upgraded a workspace, can update the company address and other billing details from the Billing page.

US sales tax

US customers may be subject to state and local sales taxes. The postcode entered for your company address will determine whether your workspace is subject to tax, and the applicable state and local tax rates. Sales tax charges will be included as a line item on your billing statement or invoice.

Where sales tax is assessed 

  • Connecticut
  • Boulder, Colorado
  • Denver, Colorado 
  • District of Columbia
  • Hawaii
  • Chicago, Illinois* 
  • Iowa 
  • Massachusetts
  • New Mexico
  • New York
  • Ohio
  • Pennsylvania
  • Rhode Island
  • South Carolina
  • South Dakota
  • Tennessee
  • Texas
  • Utah
  • Washington
  • West Virginia

*Lease Transaction Tax

Request an exemption

If your company is tax exempt, please follow the steps below:

  1. Add Slack’s full name and address to your tax exemption certificate:

    Slack Technologies, Inc.
    500 Howard Street
    San Francisco, CA 94105
    United States
  2. Send your current and signed sales tax exemption certificate to and include your Slack URL (e.g. in your message.

Value-added tax

Slack will charge value-added tax (VAT) on electronic services. Whether you’re charged VAT or consumption tax on your purchases depends on your billing address and how you use Slack.




VAT will be added to your purchase if the billing address associated with your Slack workspace or org is in the EU. In Ireland, however, customers will be charged VAT unless an exemption applies. VAT will be listed as a separate line item on billing statements and invoices.

Request an exemption

  • Ireland
    Customers with a VAT56B Authorisation Certificate are exempt from VAT, and we can help remove VAT from your purchase. Please send a copy of your VAT56B Authorisation Certificate to and include your Slack URL (e.g. in your message.
  • Other countries in the EU
    Other customers in the EU (not in Ireland) may be exempt from VAT if a valid VAT number is entered on your billing page. Learn how to update this information.

From 1 January 2019, VAT will be added to your purchase if the billing address associated with your Slack workspace or org is in Russia. Starting on this date, customers can provide their tax identification number (TIN) to be included on billing statements and invoices.

From 1 April 2019, Japan Consumption Tax (JCT) will be added to your purchase if the billing address associated with your Slack workspace or org is in Japan. Business customers who purchase Slack will not be charged JCT on their invoice. Instead, business customers are responsible for self-assessing and reporting JCT under the reverse-charge mechanism.

Customers should update their business status before 1 April 2019 to ensure that JCT is appropriately applied.

Note: If your billing address is outside of the EU, Japan or Russia, you won’t be charged VAT, JCT or a similar transaction tax.

Update tax info and business status

If your billing address is in Australia, the EU, Japan, Québec (Canada) or Norway, update your payment info to include your Australian Business Number, Québec Registration Number or VAT number as applicable, and select your business status.

  • Business status: You use Slack for business purposes and expect to receive revenue (e.g. corporations, affiliates, sole traders, self-employed merchants and partnerships). If you select this option, VAT/JCT won’t be applied. You’ll be responsible for self-assessing and paying VAT/JCT on purchases at the applicable rate of the country you’re doing business in.
  • Non-business status: You don’t use Slack for business purposes. If you select this option, standard VAT/JCT may be automatically applied based on your billing address. We reserve the right to change your status to business if we learn your workspace is being used for business purposes.

Note: From March 2019, customers in Japan will be able to update their business status.

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