The Argentine government has announced that officials from Argentina and Mexico signed a competent authority agreement for the automatic exchange of information in tax matters on 4 November 2015. The agreement is based on Article 28(6) of the OECD-Council of Europe Convention on Mutual Administrative Assistance in Tax Matters as amended by the 2010 protocol, which allows signatories to the convention to agree that the convention has effect for tax periods prior to the convention's entry into …