Home2017 Treaties and Agreements ...Guyana (17-929) – Agreement to Improve International Tax Compliance and to Implement the Foreign Account Tax Compliance Act hide Guyana (17-929) – Agreement to Improve International Tax Compliance and to Implement the Foreign Account Tax Compliance Act TIAS Office of Treaty Affairs September 29, 2017 Taxation: Foreign Account Tax Compliance Agreement signed at Georgetown October 17, 2016; entered into force September 29, 2017. With annexes. Download attachment [3 MB] Tags Guyana Office of the Spokesperson Taxation Treaties