African countries were able to identify €417 million ($475 million) in additional tax revenue last year thanks to exchange-of-information requests with other nations, according to a new OECD report.Some 909 requests for information were sent by African countries in 2025, the OECD said in its Tax Transparency in Africa 2026 report, published Tuesday as part of the group’s Africa Initiative. Political commitment to exchange of information on request, or EOIR, “remains robust and is deepening,” the OECD said.
Requests, which occur between tax authorities, involve the sharing of financial information that foreseeably would be relevant for audits and other tax law matters.
“These results highlight the significant role of international co-operation in tackling offshore tax evasion and improving compliance,” according to the report, which was prepared jointly with the African Tax Administration Forum.
The report noted that last year 30 African countries endorsed the Resolution by Heads of African Tax Administrations to Maximise the Use of Exchange of Information on Request.
While progress on revenue and information exchanges in 2025 was welcome, the OECD said, use of EOIR remained “uneven” across African countries, which it said were constrained by a lack of technical expertise and insufficient integration into compliance strategies.
Most African countries haven’t yet committed to or initiated Common Reporting Standard exchanges, the OECD’s global standard for the automatic exchange of financial information between tax authorities. Technical capacity constraints, legal gaps, and concerns linked to confidentiality and data safeguards were cited among the reasons for slow adoption.
The OECD’s Africa Initiative, launched in 2014, currently includes 39 jurisdictions.
