Create an option to enter shipping costs including tax
Situation: a webshop has products which contains 9% VAT and products which contains 21% VAT. There are different shipping costs and they all include VAT.
Dutch TAX laws (and also TAX laws in other countries) says that if a customer buys only products which contains 9% VAT, the VAT in the shipping costs should also be 9%. As soon as a product with 21% VAT is added, the VAT in the shipping costs raises to 21%.
If you set the TAX on the shipping costs to “based on items in the cart” this functionality works, but … the shipping costs needs to be entered without VAT. That means that if the shipping costs are (for example) € 1, an order with 9% VAT product has shipping costs of € 1,09 and an order with 21% VAT products has shipping costs of € 1,21.
This is not an ideal situation because you want to have the same shipping costs in both situations. This is only possible if you can add the shipping costs including VAT. Therefor it would be awesome if there is an option to set the shipping costs with or without VAT.