Hi,

I'm using a tax configuration related to sales of Beer with some taxes calculated on volume of product sold and not as percentage of price. I've used the "define tax as python code" module and it works as expected in my case for all standard orders.

But POS is causing me an issue because it only applies the tax defined in the POS configuration, but doesn't include the additional taxes I've configured in my products. 

I've tried to use the "Included in base price" option in taxes, but that doesn't work for me because I also need to be able to sell the same products without those taxes to international customer.

Anyone has an idea how I can get those taxes included in the POS calculations?