ASINT / Macro Strategy
The United Nations Economic Commission for Africa and PwC’s West Africa Economic Outlook, both published in early 2026, project growth for the region in a narrow band: 4.4% (UN) and 4.2% (PwC). The World Bank’s Global Economic Prospects, released in January, sits between the two. The regional headline masks a more complex picture. The forecasts converge on the direction: West Africa is growing faster than sub-Saharan Africa as a whole (projected at 4.0 to 4.3% depending on the source), faster than Central Africa (3.0%), and significantly faster than Southern Africa (2.0%). But the convergence dissolves when the analysis moves to country level. On Nigeria, the consensus is tight. On Senegal, the forecasts diverge so widely that they describe different economic realities. The gap tells a story about what forecasting frameworks capture and what they miss.
Nigeria is the anchor of every West African growth estimate. Its economy accounts for roughly two-thirds of the region’s GDP. PwC projects Nigerian growth at 4.3% in 2026. The World Bank projects 4.4%. The IMF’s October 2025 World Economic Outlook projected a similar figure. The drivers are consistent across all three: expansion in the services sector (ICT, finance, real estate), higher crude oil production supported by increased domestic refining capacity (the Dangote Refinery’s ramp-up), gradual monetary policy easing as inflationary pressures subside, and the continuing effects of the 2023-2024 macroeconomic reforms including the naira float and fuel subsidy removal.
The consensus on Nigeria’s topline growth comes with shared caveats. PwC highlights that Nigeria’s debt service-to-revenue ratio is projected at approximately 45% in 2026, with debt service of 15.52 trillion naira against expected revenue of 34.33 trillion naira, one of the highest in the region. The World Bank warns that weak institutional frameworks have limited the effectiveness of fiscal rules, resulting in mixed outcomes despite early progress. PwC’s regional senior partner has stated that Nigeria’s recovery is being driven by market reforms in foreign exchange and monetary policy, but that sectoral concentration and execution risks remain. Growth of 4.3 to 4.4% would be Nigeria’s fastest in more than a decade. Whether it is felt across the economy or concentrated in services and extractives is a distributional question the headline does not answer.
Senegal is where the forecasts break apart. Allianz Trade projects 5.8% growth in 2026. The IMF’s April 2026 World Economic Outlook revised Senegal’s 2026 growth down to 2.2%, from 3.0% in its October forecast. Some analysts project 2.5%. Others cite figures around 4.1%. The range, from 2.2 to 5.8%, is extraordinarily wide for a single country within a single year. The spread reflects a fundamental disagreement about how to model an economy transitioning from a first-year hydrocarbon production surge to a normalised output profile while simultaneously managing a fiscal crisis rooted in misreported debt from the previous administration.
The 2025 base is what makes the 2026 projection so contested. Senegal’s GDP grew by an estimated 6.7 to 8.4% in 2025 (figures vary by source), driven by the ramp-up of the Sangomar oil field (output stabilising at approximately 100,000 barrels per day, with 36.1 million barrels produced in 2025) and first LNG exports from the Greater Tortue Ahmeyim project. The secondary sector grew by an estimated 18.8%, with hydrocarbon production accounting for half of extractive activity. This was a structural break in Senegal’s growth profile. In 2026, the base effect works in reverse. Oil production does not double again. GTA output stabilises at Phase 1 capacity. The growth contribution of hydrocarbons declines not because production falls but because the year-on-year comparison is against the first full year of output, not against zero.
The debt dimension amplifies the divergence. The Sonko administration, upon taking office, revealed that debt from the previous Sall government had been misreported by an estimated $7 to $13 billion, representing up to 40% of GDP. The discovery has generated liquidity challenges, complicated fiscal consolidation, and introduced uncertainty into sovereign risk assessments. The IMF has encouraged continued improvements in fiscal institutions and debt management. Senegal’s current account deficit is projected at 6.2% of GDP in 2026, revised upward from the October estimate of 5.4%. The Woodside-Petrosen tax dispute, with the Australian operator filing for arbitration over $72.6 million in additional tax, has added a further layer of investor concern about retroactive fiscal adjustments.
The institutions that project higher growth for Senegal (Allianz at 5.8%, Coface at a similar level) are weighting the continued strength of hydrocarbon production and the downstream effects on services, construction and trade. Those projecting lower growth (IMF at 2.2%) are weighting fiscal drag, the base effect, the debt overhang and the policy uncertainty generated by the fiscal revelations. Both are using real data. The difference is in what they prioritise and how they model the transmission from hydrocarbon output to broader economic activity.
Ghana offers a third reference point where the forecasts are more aligned. PwC projects Ghana’s recovery path at approximately 5.5% in Q3 2025, driven by agriculture and services. The IMF-backed fiscal consolidation and debt restructuring following Ghana’s default in December 2022 are restoring credibility, lowering refinancing costs and supporting the cedi. PwC notes that the policy rate is expected to fall to 15% or lower in 2026 as disinflation advances. Ghana’s growth story in 2026 is one of recovery from crisis, a different narrative from Nigeria’s reform-driven acceleration or Senegal’s post-hydrocarbon normalisation. PwC’s regional partner explicitly warns against treating West Africa as a single growth story: “Recovery across West Africa is no longer a rising tide that lifts all boats.”
Ivory Coast continues to outperform on structural indicators. Growth exceeded 6% in 2024 and is projected to remain above 6% in 2026, supported by cocoa revenue (despite price volatility), expanding gold production, infrastructure investment and a diversifying services sector. The country’s position in the mining policy divergence documented elsewhere in this series adds a competitiveness dimension that growth figures alone do not capture.
The Guinea anomaly sits at the extreme end of the regional spectrum. The World Bank projects Guinea at 8.8% growth in 2026, 11.6% in 2027 and 10.7% in 2028, the highest rates in sub-Saharan Africa. These projections are entirely driven by the Simandou iron ore project’s anticipated ramp-up. If Simandou delivers to schedule, the growth figures are plausible. If it does not, or if the EBID and VINCI-financed infrastructure pipeline documented in this series does not keep pace, the numbers do not hold.
The AES countries (Mali, Burkina Faso, Niger) present the most opaque forecasting environment. Their exit from ECOWAS, the creation of alternative institutional frameworks, and the disruption to data-sharing mechanisms with regional institutions make conventional growth estimates less reliable. Mali’s industrial gold output fell 23% in 2025 but is projected to rebound 28% in 2026 on the Loulo-Gounkoto restart. Burkina Faso’s gold production is rising (64 tonnes projected for 2026) but the security environment and mining code revisions constrain the broader economy. Niger’s growth is supported by oil production from the Agadem block but limited by fiscal isolation from UEMOA financial markets.
The structural question that the UN and PwC outlooks both raise, without fully resolving, is whether the 4.2 to 4.4% regional growth rate reflects a durable trajectory or a concentration of positive factors (elevated commodity prices, new hydrocarbon production, post-crisis recovery in Ghana) that may not persist. PwC explicitly describes 2026 as a cooling from 2025’s 4.4%, noting that tighter government spending and debt service constraints are limiting fiscal space. The UN frames the 4.4% projection against trade uncertainty, noting that heightened exposure to US tariffs affects the outlook.
For investors and operators, the practical takeaway is that the regional average is the least useful number in the outlook. Nigeria at 4.3% with 45% debt-service-to-revenue, Senegal at somewhere between 2.2% and 5.8% depending on which model you believe, Ghana at 5.5% in recovery mode, Ivory Coast above 6% with pipeline momentum, Guinea at 8.8% on a megaproject bet, and the AES states growing behind an institutional curtain, these are five different investment environments that happen to share a regional label. The 4.4% is a weighted average. The weights are what matter.