The CBN's 2023–2024 FX Unification Reform: What Changed and What Didn't

When Olayemi Cardoso was confirmed as Central Bank of Nigeria Governor in October 2023, he inherited one of the most distorted foreign-exchange systems in Africa. His predecessor, Godwin Emefiele, had spent nearly a decade maintaining multiple official rates — SMIS, I&E, BDC — while a parallel black market priced the naira at twice the official level. The unification that followed reshaped Nigeria's FX architecture more dramatically than any single policy since the Structural Adjustment Programme of the 1980s. Yet more than a year later, the parallel rate persists and the naira has shed more than 70% of its pre-reform value. This article traces exactly what the CBN changed, what the numbers confirmed, and what remains structurally unresolved.

What Did the June 2023 FX Unification Actually Change?

The policy announcement came on 14 June 2023. The CBN collapsed its multiple exchange-rate windows into a single Investors and Exporters (I&E) window, rebranded almost immediately as the Nigeria Foreign Exchange Market (NAFEM). The directive had three operational components.

First, the CBN removed the administered rate at the official window. Prior to June 2023, the Retail Dutch Auction System and the SMIS window had been pegged at approximately ₦461 per dollar — a rate that bore no relationship to market supply and demand. Under NAFEM, authorised dealer banks were instructed to quote rates determined by willing-buyer, willing-seller dynamics.

Second, the CBN restored access for Bureau de Change (BDC) operators to official foreign exchange, albeit on new terms. BDCs had been cut off from CBN dollar sales since July 2021 under Emefiele. The 2023 circular did not immediately restore CBN-to-BDC supply lines at scale, but it formally reintegrated BDCs into the legal FX infrastructure.

Third, the CBN signalled that it would allow the naira to find a market-clearing rate. On the day of the announcement, the NAFEM rate moved from approximately ₦465 to ₦750 per dollar in a single session — the largest single-day devaluation in the naira's modern history. By the close of December 2023, the NAFEM rate had reached ₦900 per dollar, according to CBN data.

The parallel market responded with its own adjustment. Nairametrics data shows the black-market rate at approximately ₦1,100–₦1,200 per dollar at end-2023, a premium of roughly 30% above NAFEM. That spread, while large in absolute terms, represented a meaningful compression from the pre-reform divergence of over 50%. For a fuller account of how the parallel rate is structured, see our guide to the official CBN rate versus the black market.

Why Did the Naira Continue to Fall Through 2024?

Unification removed the administrative fiction of a fixed rate. It did not resolve the underlying dollar shortage that had made multiple rates politically necessary in the first place.

Nigeria's FX supply is structurally dependent on crude oil export receipts. The Nigerian Upstream Petroleum Regulatory Commission (NUPRC) and the Nigerian National Petroleum Company Limited (NNPCL) have consistently reported that crude production remained well below the 2 million barrels per day (bpd) target throughout 2023 and into 2024. Nigeria's actual production for much of 2023 averaged approximately 1.22–1.35 million bpd, according to NUPRC monthly reports. The NNPCL's continued role as the primary conduit for crude-oil dollar receipts meant that the CBN's FX inflows remained constrained even as demand was liberalised.

The second supply shock was the removal of the petrol subsidy on 29 May 2023 under President Bola Tinubu. While the subsidy removal reduced the fiscal transfer to NNPCL and improved the government's naira budget position, it also intensified inflationary pressure. The National Bureau of Statistics (NBS) reported headline inflation at 33.2% year-on-year in March 2024, up from 22.4% in June 2023. Real naira purchasing power fell sharply, amplifying demand for dollar-denominated assets as a store of value.

Against this backdrop, the CBN raised the Monetary Policy Rate (MPR) aggressively. The Monetary Policy Committee increased the MPR from 18.75% in May 2023 to 24.75% by February 2024 — a 600-basis-point tightening cycle compressed into nine months. The CBN framed the hikes as inflation-fighting measures aligned with the FX unification: a unified rate without a credible monetary anchor, the argument ran, would simply produce faster depreciation rather than price discovery.

The NAFEM rate nonetheless breached ₦1,500 per dollar in February 2024. By late February, the CBN intervened directly, selling dollars to authorised dealers at rates intended to stabilise the window. The rate pulled back to approximately ₦1,450–₦1,480 by March 2024. The intervention was significant: it signalled that "market-determined" in the CBN's framing did not mean unmanaged float, but rather a managed float with intermittent central bank supply.

What Remains Structurally Unresolved?

Three gaps separate the 2023–2024 reform from a genuinely unified and liquid FX market.

The backlog of verified foreign liabilities. At the time of unification, the CBN acknowledged a pipeline of unmet FX demand from foreign investors and airlines holding naira balances. Published estimates at the time ranged from $6 billion to $10 billion in outstanding verified claims. The CBN committed to clearing this backlog, and partial settlements were reported through Q4 2023 and Q1 2024. However, investor confidence in the window's depth remained limited, constraining fresh portfolio inflows that might otherwise bolster supply.

BDC recapitalisation and the retail market. In June 2024, the CBN issued a new directive requiring BDCs to increase their minimum capital from ₦35 million to ₦2 billion for Tier 1 operators and ₦500 million for Tier 2 — an increase of more than 50-fold for the top tier. The stated rationale was to professionalise the retail FX segment and reduce speculative activity. In practice, the requirement threatened to eliminate most of Nigeria's estimated 5,000 BDC operators. A smaller, better-capitalised BDC sector may reduce leakage, but it also concentrates the retail dollar market in fewer hands, which can reduce price competition and sustain parallel-market premiums.

Export repatriation enforcement. The CBN's directive requiring exporters to repatriate 100% of foreign-currency proceeds within 90 days of shipment — and to sell at least 50% at the I&E window — has been on the books in various forms for years. Enforcement has historically been inconsistent. Non-oil exports, including agricultural commodities such as sesame seed, cocoa, and cashew, generate meaningful dollar receipts. Reliable repatriation of these proceeds would deepen NAFEM supply without dependence on crude production volumes. As of mid-2024, compliance reporting from the CBN remained opaque.

The naira's trajectory in 2023–2024 is not simply a story of policy failure. The unification removed a significant distortion and forced a realistic reckoning with the naira's market value. However, the persistence of a parallel premium — ranging between 5% and 20% above NAFEM through most of 2024 by Nairametrics tracking — indicates that structural supply constraints and residual confidence deficits have not been resolved by a change in rate architecture alone. The reform was necessary. It was not, on its own, sufficient.

---

Regulatory note: The Central Bank of Nigeria regulates all foreign-exchange transactions under the Foreign Exchange (Monitoring and Miscellaneous Provisions) Act. Foreign-exchange dealing, remittance, and investment activities are subject to CBN guidelines and, where securities are involved, Securities and Exchange Commission (SEC) oversight. The Cowrie is an independent editorial publication. It does not hold a financial services licence and nothing in this article constitutes financial, investment, or legal advice.