IDB Approves $100 M Reform to Modernize Tax Administration, Boost Transparency and Revenue Efficiency

The initiative marks a major step toward modernizing public finance management, improving taxpayer services, and reducing compliance gaps through digital innovation and data-driven governance.

The Inter-American Development Bank (IDB) has approved a $100 million financing package to transform tax administration systems, strengthen institutional capacity, and enhance revenue collection through a comprehensive overhaul of the Tax Collection and Customs Control Agency (ARCA).

The initiative marks a major step toward modernizing public finance management, improving taxpayer services, and reducing compliance gaps through digital innovation and data-driven governance.

The project is the first operation under a new Conditional Credit Line for Investment Projects (CCLIP) of up to $600 million, aimed at strengthening the efficiency, transparency, and effectiveness of public revenue systems.

A Four-Pillar Transformation Strategy

At the core of the reform is a wide-ranging transformation of ARCA, built around four strategic pillars designed to modernize both its operational and technological capabilities.

1. Strengthening Institutional Capacity and ManagementThe program will redesign tax processes, optimize human resource management, and improve coordination with other government agencies. These reforms aim to create a more agile, efficient, and responsive tax authority capable of meeting modern fiscal demands.

2. Enhancing Taxpayer ServicesA major focus will be improving citizen interaction with the tax system. This includes streamlining processes such as registration, tax filings, inquiries, and complaints, making services more accessible and user-friendly for individuals and businesses.

3. Implementing Data-Driven Risk ManagementThe project introduces a comprehensive risk management system that leverages data analytics to improve tax control. This includes segmented risk profiling, smarter audit selection, and increased transparency in enforcement processes — helping authorities focus resources where compliance risks are highest.

4. Driving Digital Modernization and CybersecurityA significant portion of the investment will go toward upgrading ARCA's digital infrastructure. This includes a new data management model, enhanced IT systems, and the development of robust cybersecurity frameworks to protect sensitive financial information.

Closing the Tax Gap and Reducing Compliance Costs

One of the key objectives of the program is to reduce the value-added tax (VAT) compliance gap, a persistent challenge in many economies. By automating systems and simplifying procedures, the initiative aims to make compliance easier while strengthening enforcement.

Digitalization is expected to lower administrative burdens for taxpayers, reduce errors, and improve the accuracy and efficiency of tax collection.

At the same time, regulatory and procedural updates will ensure that the system remains aligned with evolving economic realities and taxpayer needs.

Wide-Ranging Impact Across Public and Private Sectors

The reform is expected to deliver benefits at scale:

• Approximately 19,000 ARCA staff will gain access to training, improved tools, and more efficient workflows

• Around 6.8 million taxpayers and private sector actors will benefit from better services, faster processes, and increased transparency

A strong emphasis on digital inclusion will ensure that the system accommodates diverse taxpayer profiles, helping to expand access and improve compliance across different segments of the population.

Coordinated International Support

The project will be implemented in coordination with a results-based loan from the World Bank, aligning financing with measurable outcomes and reinforcing accountability in implementation.

This collaboration reflects a broader trend among multilateral institutions to combine financial support with performance-based mechanisms, ensuring that reforms deliver tangible improvements in governance and service delivery.

Long-Term Financing for Structural Reform

The IDB loan features a 25-year maturity period, including a 5.5-year grace period, with an interest rate linked to SOFR (Secured Overnight Financing Rate). This long-term structure provides the fiscal space needed to implement deep institutional reforms while ensuring sustainability.

A Strategic Shift Toward Transparent and Efficient Revenue Systems

As governments worldwide seek to strengthen fiscal capacity and improve public trust, investments in modern tax administration are becoming increasingly critical.

By combining institutional reform, digital transformation, and data-driven oversight, the ARCA project represents a comprehensive approach to building a more transparent, efficient, and inclusive tax system.

With the first phase now approved under the $600 million credit line, the initiative is expected to lay the foundation for broader reforms — helping ensure that public revenue systems are better equipped to support long-term economic growth and development.