Visitors from non-European Union countries can reclaim the sales tax (VAT) on purchases from many British retailers.
Do not check-in your items eligible for VAT Refund if you wish to claim the refund.
Instead, when you get to the airport, take your receipt and form to the VAT Refund Desk. Please ensure that you keep your goods with you when you make your claim, you may be asked to show them. High value items including watches, cameras and smartphones must be presented airside at the VAT Refund Desk.