Thanks for the reply.
So unless there's a way customers claim to be a business, Itch should always add VAT for EU regions (unless disabled of course).
OK. i'll dig out the exact case...
I've also noticed that some customers pretend to be in different regions. So the region code in the STRIPE or PAYPAL reports is *different* from the Itch purchases report. In these cases the tax was levied as the Itch reported region.