Hey There, I’m in the middle of helping a client move across to shopify. They are a medical supply company and therefore customers with medical VAT exemptions need to be able to checkout ex VAT - I have seen on another Shopify site that it is possible to do this via a tickbox. Once the box is ticked the VAT is removed and the customer can checkout ex VAT and if the box it unticked VAT is applied and the customer has to checkout inc VAT. What is this magic 
Any help implementing this would be hugely welcomed!
Did you find a solution? I have the same issue