accession agreement on 30 May 2018 and became a member on 28 April 2020. On 15 May 2020, the OECD decided to extend a formal invitation for Costa Rica to join the OECD, which joined as a member on 25 May 2021. Other countries that have expressed interest in OECD membership are Argentina, Peru, Malaysia, Brazil, and Croatia. In January 2022, the OECD reported that it had begun talks aiming toward joining Argentina, Brazil, Bulgaria, Croatia, Peru and Romania. In March 2022, the OECD suspended the participation of Russia and Belarus due to the ongoing 2022 Russian invasion of Ukraine. In June 2022, during the annual OECD Ministerial Council Meeting, the Roadmaps for the Accession to the OECD Convention for Brazil, Bulgaria, Croatia, Peru and Romania were adopted. Objectives and issues Taxation The OECD sets the rules governing international tax for multinationals through the OECD Transfer Pricing Guidelines for Multinational Enterprises and Tax Administrations, a Model Tax Convention and country-by-country reporting rules. The OECD publishes and updates a model tax convention that serves as a template for allocating taxation rights between countries. This model is accompanied by a set of commentaries that reflect OECD-level interpretation of the content of the model convention provisions. In general, this model allocates the primary right to tax to the country from which capital investment originates (i.e., the home, or resident country) rather than the country in which the investment is made (the host, or source country). As a result, it is most effective between two countries with reciprocal investment flows (such as among the OECD member countries), but can be unbalanced when one of the signatory countries is economically weaker than the other (such as between OECD and non-OECD pairings). Additionally, the OECD has published and updated the Transfer Pricing Guidelines since 1995. The Transfer Pricing Guidelines serve as a template for the profit allocation of inter-company transactions to countries. The latest version, of July 2017, incorporates the approved Actions developed under the Base Erosion and Profit Shifting (BEPS) project initiated by the G20. Pillar 1: An OECD proposal to allocate multinational profits (for taxing purposes) to countries where they do business, by a formula, including to markets which multinationals sell into without a physical presence. This is hoped to eliminate the need for Digital Services Tax implemented by several countries, including France. There are exclusions and minimum thresholds, including banking and extractive industries.