 For services paid for in currencies other than the euro, the amount in euro is converted to the other currency using the reference rates published in the Official Journal of the European Union (OJoEU).After the adoption of EU regulation 531/2012 the retail exchange rate to be used for the relevant year should be calculated by taking the average of the reference exchange rates published in the OJoEU on 1 March, 1 April and 1 May of that year, with the new exchange rate coming into force on 1 July of that year.The wholesale exchange rate however is taken from only the rate published on 1 May of that year.