Do suppliers require a tax ID?

A Sales Tax ID (also known as a Resale Certificate) is a government-issued number that allows you to collect sales tax on your transactions. While many suppliers in our network do not require this document to begin working with you, having one on hand can often unlock better wholesale pricing and professional opportunities.

If a supplier does request verification, you can provide the tax ID or business registration document specific to your region. Here is how to handle documentation based on your location:

• United States: You will generally need a valid Sales Tax ID. You can find guidance on the process in our guide to getting a resale license.
• UK/EU: Use your VAT ID as the equivalent to a Sales Tax ID.
• Australia/New Zealand: You can use your GST number.
• International: If you do not have a specific tax ID, wholesalers may accept your official business license or registration documents.

If you need help formalizing your business, we have compiled resources to walk you through the process:

• Business Registration USA
• Register a Business in Canada
• Business Registration UK
• Set up a Business in Australia

For further clarification on why specific documents are requested, please review our guide on why suppliers ask for documentation.

Our support team is here 24/7 if you hit a snag!

Updated on: 01/07/2026