As a UK-based company, Pottermore Limited accounts for Value-Added Tax (VAT) on all purchases by residents of European Union member states. For orders from USA and Japan, applicable taxes will be added at checkout.
Orders placed outside the UK may incur an international service charge. Not all payment card transactions will carry this charge (it depends on your card issuer), and the amount will vary depending on the type of card used (it is generally a small percentage of the total).
Please note it is your responsibility to be aware of any international service charges that your payment card issuer may charge.