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.

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This feature does not work with standalone Vertex Validator. It only works for Vertex for e-Commerce 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"}

     ],