Guernsey & Jersey GST/VAT Rates in Magento Aug 17, 2011 Guernsey and Jersey in the Channel Islands have independent tax rules from the UK and require some special processing in a Magento eCommerce website – here is how to go about it. First of all lets look at the sales tax rules in these three jurisdictions. UK sales tax or VAT (value added tax) is currently charged at 20% and needs to be applied to all orders payed for/delivered to the UK. Development How To's Magento ecommerce GST guernsey jersey magento magento development VAT