We are currently using the PayPal Website Payments Pro (US) Direct Payments module. http://addons.oscommerce.com/info/5659
We recently discovered that PayPal is not including the shipping tax in their total.
PayPal is including the item amount, item tax, and shipping fee but excluding the shipping tax from the total that the customer pays.
Within osCommerce all of these taxes are calculated and communicated properly.
For orders that we ship within Canada we are obligated to charge GST/HST on the shipping fee.
How do I pass the shipping tax value to PayPal for inclusion in the total?
Thanks for any help you can provide.