Nigeria—Tax Administration Diagnostic Assessment in Borno State

Client: World Bank

Duration: 2022-2023

Region: Sub-Saharan Africa

Country: Nigeria

Solutions: Governance

DAI conducted a subnational Tax Administration Diagnostic Assessment in Borno State, Nigeria. The World Bank, with grant funds from the European Union, is supporting governance reforms in Borno State and contracted DAI to assess the State Board of Internal Revenue using the Tax Administration Diagnostic Assessment Tool (TADAT), which provides a standardized means of assessing the health of a tax administration system relative to international good practice. Our team identified the strengths and weaknesses of the state’s tax administration and advised the Board of Internal Revenue on reform objectives, priorities, and implementation sequencing.


Sample Activities

  • Deliver designated modules for the TADAT training and conduct workshops for state revenue authority staff on the TADAT methodology.
  • Conduct a pre-assessment survey using questionnaires distributed to the Bureau of Internal Revenue staff; to carry out an assessment of the Tax Administrations using the TADAT methodology.
  • Prepare a performance assessment report.
  • Recommend an area of tax administration requiring critical reforms, training, and capacity building.

Select Results

  • Using the TADAT tool, evaluated and recommended standardized practices to the Borno State Internal Revenue Service.
  • Strengthened the capacity of state revenue authority staff on the TADAT methodology, through training.
  • Conducted an assessment of the TADAT methodology and submitted a performance assessment report to the TADAT Secretariat.
  • Recommended areas of tax administration requiring critical reforms, training, and capacity building to the World Bank.


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