Multiple rates for withholding tax

Hi,

As you may know that in order to run R40580, it is required to setup a  single withholding percentage on the supplier master, but the question is, is there a way to apply a different withholding tax rate for the same supplier per line on the purchase order or voucher?

In my case the user is entering a purchase order from a supplier for different types of services/products which are subject to different withholding tax rates.

If you have a workaround to solve this issue other than creating a separate supplier for each required tax rate and grouping them under a parent please let me know.