At the moment it's a bit of a grey area. In the future, the Government is already planning: https://www.gov.uk/government/publications/revenue-and-customs-brie

At the moment it's a bit of a grey area. In the future, the Government is already planning: https://www.gov.uk/government/publications/revenue-and-customs-brief-9-2014-bitcoin-and-other-cryptocurrencies/revenue-and-customs-brief-9-2014-bitcoin-and-other-cryptocurrencies#vat-treatment-of-bitcoin-and-similar-cryptocurrencies https://www.gov.uk/government/publications/revenue-and-custo... You'll have to charge VAT as normal, before the price is converted into bitcoin.