Comply with price indication regulation
If different tax rates are calculated for different EU countries, the price of a product can change during the ordering process if a different delivery country is selected.
An example: A product is sold for 200 euros incl. 19% (DE) VAT. This price is also displayed on the product page. If Austria is selected as the delivery country on the checkout page, for example, a tax rate of 20% will be applied. WooCommerce then changes the price in such a way that it deducts the tax of the shop base country from the set gross price (in this case the 19% (DE) VAT) and then adds 20% (AUT) taxes for Austria. This would result in a gross price of 200.91 euros (200 euros / 219 x 220).
The gross price would therefore change. Based on the Price Indication Ordinance, the price displayed in the shop system must be the total price including VAT, which must therefore no longer change during the ordering process.