Singapore Signs Multilateral Competent Authority Agreements to Enhance Tax Co-operation on Exchange of Information June 21, 2017 P G Wee "On 21 June 2017, Singapore will sign the Multilateral Competent Authority Agreements ("MCAAs") on: the Automatic Exchange of Financial Account Information under the Common Reporting Standard ("CRS"); and the Exchange of Country-by-Country ("CbC") Reports." IRAS