WooCommerce calculates the VAT (in this case 20%) per line (wrong), but really should calculate VAT per item (right).
For example, we have a product that is 0.13p (excl VAT), which shows as 0.16p (inc VAT) on the frontend. This is fine as 0.13p + 20% = 0.156p and is rounded up to 0.16p. If you add 5 of these to the cart you would expect to see 0.16p x 5 = 0.80p but instead we get 0.78p. My guess is that WooCommerce is calculating the VAT per line and not per item (e.g. 0.13p x 5 = 0.65p and then 0.65p + 20% = 0.78p). See below.Wrong Amount
I have tried all sorts of different settings with no success, this is how they are now (see pic attached).Tax Settings
Has anyone experienced the same issue? Have you found a solution? Obviously, I can't launch this with such a bug.. Many thanks!