I've literally been trying to get this to work for months now and have tried every configuration I can think of. The project is now as breaking point.
I have two shopper groups in the same country. One group pays tax, the other doesn't. I need to charge GST (vat/tax) at the product level so that we can integrate sales with the clients accounting software (need tax per item).
I have created two tax rules. One 10% for shopper Group A and one 0% for shopper group B. If shopper group A's tax is calculated as Tax per Product or VAT per Product, ALL shopper groups are charged that rate. The only way the tax will calculate correctly is if I calculate Shopper Group A's tax as Tax per Bill but that is not acceptable for the reasons above.
VM 2.0.20B but has existed in at least two prior versions, Joomla 2.5.11
Anyone?
Figures. we'll just put this down as another "feature" that doesn't work in a generally crappy product.
It is working OK for me using VM2.0.21c - I only have the one rule set up, to charge tax per product assigned to the taxed shopper group. I don't need another tax rule (for zero) as the default is for no tax to be charged. The prices display and are charged correctly.
Works for us also on our live store