This field captures the Provincial Sales Tax (ProvincialSalesTax/QST) component of Canadian tax.

The system attempts to extract the ProvincialSalesTax/QST amount from a document if the vendor country of origin is Canada. The regular invoice tax amount field is used to capture the GST/HarmonisedSalesTax component of Canadian tax. The system converts any extracted value to a valid amount using a period as the decimal separator.

During the mathematical validation of the invoice amounts, both the ProvincialSalesTax/QST and regular invoice tax amounts are added together in the background to form a total tax liability of the invoice. During document export, the tax amount exported is the sum of the regular tax field and the ProvincialSalesTax field, even though the ProvincialSalesTax component is available separately.

For example, if an invoice has a GST/HarmonisedSalesTaxcomponent of 40 CAD and ProvincialSalesTax/QST of 10 CAD, the total tax amount is 50 CAD and the ProvincialSalesTax/QST amount is exported as 10 CAD.

For more information on processing Canadian invoices, refer to Canada.