The LAC Fiscal Initiative aims to improve taxation and public expenditure policies in Latin America and the Caribbean (LAC) to foster economic growth and income redistribution in the region. Delivered through the LAC Tax Policy Forum, the initiative brings together senior fiscal policy officials from LAC countries and experts from the OECD and other regional organisations. This forum, primarily for public officials and officials in regional partner organisations, serves as a platform for high-level policy dialogue on topics beyond fiscal issues, including investment, public governance and innovation.

As the Two-Pillar Solution transitions into implementation, new partnerships are emerging to provide support. For instance, the OECD's Forum on Tax Administration (FTA) Pillar Knowledge Sharing Network, supported by the UK’s HM Revenue & Customs (HMRC), facilitates discussions on administrative aspects crucial to the Two-Pillar Solution. This platform enables ‘quick answers to quick questions’ and fosters high-level exchanges among tax administrations regarding their strategies for addressing specific administrative challenges related to the implementation of the Pillars. Functioning through peer-to-peer knowledge-sharing events, over 100 jurisdictions have already joined the network. 

The International Survey on Revenue Administration (ISORA), a collaboration between the Inter-American Center of Tax Administrations (CIAT), the International Monetary Fund (IMF), the Intra-European Organisation of Tax Administrations (IOTA),  and the OECD with the participation of the Asian Development Bank (ADB), collects tax administration data from more than 150 tax administrations on an annual basis. The survey provides internationally comparative data on various aspects of tax systems and their administration,  and aims to assist tax administrations in managing and evaluating their performance as well as providing insights into global trends in tax administration. The OECD uses the ISORA data to develop its Tax Administration Comparative Information Series. 

VITARA is a joint initiative of four international organisations: CIAT, the IMF, IOTA,  and the OECD. VITARA was launched in 2020 to develop a highly effective, globally accessible, on-demand online training curriculum on revenue administration issues. It complements the four founding organisations' capacity development and training efforts.

 The VITARA training courses cover both institutional arrangements, management of strategic reforms, compliance risk management, information technology and data management, as well as design and management of core taxation processes. They are tailored to senior managers and executives of tax administrations of developing countries, yet lower-level staff, tax administrators from advanced economies or custom administration professionals could also benefit from it. 

Over time, each online training module will be supported through a reference guide which reproduces the module content. The reference guides are available on the OECD ilibrary.