The Single Euro Payments Area (SEPA) is a payment-integration initiative of the European Union for simplification of bank transfers denominated in euro. As of 2020, there were 36 members in SEPA, consisting of the 27 member states of the European Union, the four member states of the European Free Trade Association (Iceland, Liechtenstein, Norway and Switzerland), and the United Kingdom. Some countries participate in the technical schemes: Andorra, Monaco, San Marino, and Vatican City.