At present we are selling online to customers in Ireland only and charge VAT on every purchase. We now want to expand this to the UK and Europe, but I'm confused as to what to do regards to VAT. If someone from the UK was to phone up and order an item thats grand as you just ask them their VAT number and then don't charge VAT. But online it is all done automated so what do you do if someone has a VAT number or not? If given an option of entering a VAT number for price minus VAT, would this be open for abuse if someone did this and didn't have a VAT number? Or if you charge VAT on everything do you have to register for VAT in every country you sell to?