Mutual agreement implementing Article XVIII of the protocol, amending the agreement between the Swiss Confederation and the United Kingdom of Great Britain and Northern Ireland on co-operation in the area of taxation, signed on 18 April 2012.

For the terms of the protocol signed on 20 March 2012, see External resource, UK/Switzerland tax co-operation agreement: amending protocol.

For the original terms of the agreement, as signed on 6 October 2011, and a consolidated version of the agreement (incorporating the amendments made by the protocol but not the mutual agreement), see External resource, UK/Switzerland tax co-operation agreement.

For further information on the agreement (as amended), see Practice note, UK/Switzerland tax co-operation agreement.