use different VAT rates in Product Add-ons
use different VAT rates in Product Add-ons, so you can combine a product of 21% VAT with an Product Add-on of 9% VAT
AJ Howarth commented
I agree. My client sells bottled gas. Most people just want a refill - which is charged at the reduced rate of 5%. However, if they don't have their own cylinder, they are required to pay a deposit (an addon) - which is charged at 20%.
I am having the same problem, would like to see an option to set the tax for the addons.
I sell classes, and offer rentals of gear. Classes are not taxable, but rentals are. I want to be able to not tax the product, but tax the rentals as an add on so customers don't have to click around to a different page to add rental gear.