In a significant endorsement of Nigeria’s ongoing fiscal transformation, the International Monetary Fund (IMF) has praised the Federal Inland Revenue Service for substantial progress in modernizing the country’s tax administration system, just as groundbreaking tax reform legislation begins to reshape the nation’s revenue landscape.
Paulo Paz, a senior economist at the IMF’s Fiscal Affairs Department, delivered the commendation during the opening of an IMF-supported mission at the Revenue House in Abuja on Wednesday. The assessment comes at a pivotal moment for Nigeria’s tax system, as President Bola Ahmed Tinubu signed the four tax reform bills into law on June 26, 2025, marking the most comprehensive overhaul of the country’s tax framework in decades.
The IMF’s recognition centers on the leadership of FIRS Chairman Zacch Adedeji, whose administration has overseen what international observers describe as a dramatic improvement in tax collection efficiency and compliance mechanisms. The global financial institution has committed to continued support for the agency as it navigates the implementation of the new legislative framework.
“We want to know how we can best support you with this new challenge,” Paz stated, acknowledging both the achievements and the expanded responsibilities that come with the new tax laws. The IMF economist characterized the legislation as “very powerful laws, which will increase the relevance of the tax administration in Nigeria.”
The timing of the IMF mission is particularly significant given the impending transformation of FIRS into the Nigeria Revenue Service (NRS), scheduled for next year. This institutional restructuring represents one of the most visible changes under the new tax regime, which consolidates Nigeria’s previously fragmented tax laws into a more coherent system.
The foundation for this transformation was laid through rigorous assessment processes. Bolaji Akintola, the coordinating director of Corporate Services Group, revealed that FIRS has undergone two comprehensive evaluations using the Tax Administration Diagnostic Assessment Tool (TADAT) between 2018 and 2023, with IMF support. The results demonstrate measurable improvement in institutional capacity and operational effectiveness.
“The fact that the results of the 2023 TADAT showed significant improvement on those of 2018 is indicative of the commitment of the Service towards institutional excellence,” Akintola explained. She expressed confidence that current performance levels would exceed even the 2023 benchmarks, particularly given that many previously identified weaknesses have been addressed through the new legislation.
The collaboration between the IMF and FIRS extends beyond traditional advisory roles into practical implementation support. Areas of focus include digital transformation initiatives, VAT automation systems, and compliance program development—all critical components of modern tax administration in an increasingly digital economy.
The comprehensive nature of the reforms reflects Nigeria’s broader economic strategy under President Tinubu’s administration. The new tax laws are designed to streamline revenue collection, improve compliance, and create a more business-friendly environment while expanding the tax base to support national development goals.
As Nigeria prepares to implement these sweeping changes, the IMF’s continued partnership provides crucial international credibility and technical expertise. The global institution’s endorsement signals to international investors and development partners that Nigeria’s fiscal reforms are on a sustainable trajectory.
The transformation of FIRS into NRS represents more than a name change—it symbolizes Nigeria’s commitment to building a modern, efficient revenue administration system capable of supporting the country’s ambitious development agenda. With IMF backing and demonstrable progress in recent years, the agency appears well-positioned to navigate the challenges and opportunities ahead.
The success of these reforms will likely have implications beyond Nigeria’s borders, potentially serving as a model for other developing nations seeking to modernize their tax systems and improve domestic revenue mobilization.
WHAT YOU SHOULD KNOW
The International Monetary Fund has officially endorsed Nigeria’s tax reform progress under FIRS Chairman Zacch Adedeji, coinciding with President Tinubu’s signing of four comprehensive tax reform laws in June 2025.
This represents Nigeria’s most significant tax system overhaul in decades, with FIRS set to transform into the Nigeria Revenue Service next year.
The IMF’s backing validates Nigeria’s improved tax collection efficiency and signals strong international confidence in the country’s fiscal modernization efforts, potentially positioning Nigeria as a model for other developing nations pursuing similar reforms.
