Validating Multiple Tax IDs for Canada

In Canada, you may need to validate both a Goods and Services Tax (GST)/Harmonized Sales Tax (HST) Tax ID and a Quebec State Tax (QST)/Provincial State Tax (PST) Tax ID in the same request.


This feature does not work with standalone Vertex Validator. It only works for Vertex Advantage and Taxamo Assure merchants.

To do so, you need to add a nested list using the buyer_tax_numbers field. For example:

"buyer_tax_numbers": [

         {"buyer_tax_number": "119364511"},

         {"buyer_tax_number": "7273121"}