Tax Exempt Status & Sales Tax

Tax Exempt Orders

Qualified organizations are exempt from paying sales tax on purchases with Greenhouse Megastore. When making purchases for your organization you will need a copy of your valid, non expired state-issued tax-exempt certificate and your tax-exempt number. Each state has its own criteria for determining eligibility and the rules may differ from state to state. Form(s) will need to be signed and dated to be accepted and the name and address on the account will need to be an exact match to that printed on the exemption certificate.

Any questions regarding tax exempt purchases with Greenhouse Megastore must be submitted via email:

Ordering as Tax Exempt

If you are tax exempt, your account will need set up as such before ordering online. Please note that sales tax assessed and paid for on web orders can NOT be reversed. Please follow these steps to avoid paying tax unnecessarily:

1. Sign up

Sign up for an account:

  1. Go to Account Signup
  2. Enter your email address and click Continue
  3. Enter the 6-digit code sent to your email address and click Submit
  4. Click the profile icon in the top right hand corner
  5. Click Account information
  6. Click the Edit next to Name to add your Name
  7. Click the +Add next to Addresses to add your Address. Please include Company/School.

2. Send

You will need to send:

Tax exempt certification(s)
Streamlined Exempt Certificate
(Must be signed and dated to be valid)


Email address that you signed up for an account with


3. Wait

Wait for confirmation that your account has been updated with your tax exempt status. This process can take up to 48 hours.

We will honor any promos in place at the time of your submission.

If you'd prefer not to start this process through an online account, you can always speak to our Customer Service team, specifically:

  • For schools, call 888-281-9337 and select option 1
  • For any other tax exempt entity, call 888-281-9337 and select option 2

Domestic Orders
Unless a valid resale certificate is provided, sales tax will be added on all orders shipped to customers in Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, Nevada, New Jersey, New Mexico, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, West Virginia, Wisconsin, Washington State, or Wyoming. Purchaser is responsible for reporting and paying any use taxes or other taxes imposed in their state.

Canadian Orders
Greenhouse Megastore is not registered to collect and report Canadian taxes. Therefore, Canadian customers ordering from our company assume responsibility for paying all PST and GST taxes associated with their purchase upon delivery of their order. By purchasing from Greenhouse Megastore, Canadian customers explicitly authorize Greenhouse Megastore to charge the credit card provided with their order to collect any taxes or duty not paid by the customer.