Sales Tax

Trillium courses are hosted on a platform called Teachable. We use the Teachable payments system to manage payments and taxes. As the vendor on record, Teachable collects, remits, and reports all sales taxes to the relevant bodies.

If you are a tax exempt organization, please DO NOT PURCHASE ON THE SITE. Please complete the tax exempt order form below and we will send you an alternative way to pay. Note: We cannot offer an alternative way to pay for monthly subscriptions.

If you cannot see the form below, please go here:


If you already purchased directly on the platform and need a refund for sales tax you have already paid, please submit a refund request to [email protected]. The refund request should include

  • a copy of the purchase receipt showing the sales tax paid and Order ID
  • a copy of your state sales tax exemption certificate.

Teachable will issue a refund once the documentation has been reviewed and approved. Usually the process takes about 7 days.