Is there any method of showing the actual % percentage rate charged on the checkout pages and, ideally, on the invoice?
The reason is that I've altered functions_taxes.php to calculate tax on a customer specific basis, with a couple of new fields in the customers table (modified Tax Exempt mod).
The answer (I think) lies somewhere in the function zen_get_tax_description, but I've got stuck...
I've been working with the idea that I need to put the tax_rate into an array of $_SESSION in function zen_get_tax_rate, and pick it up again in zen_get_tax_description... But not too sure how.
Anyone?!
Am I on the right track, at least?
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