But under the headline image there is a more complex reality: strong growth, high profits, however much of the speed is uneven, concentrated, and partly destroyed by currency fluctuations.
A new report by McKinsey & Company shows that the banking sector in Africa generated about $99 billion in 2024 and is estimated to reach about $107 billion in 2025.
A critical incident with difficulty concentrating
The landmark event shows how banks have expanded rapidly across the continent, driven by increased financial inclusion, digital adoption, and a rapidly growing population.
But success is very focused.
Just five markets, South Africa, Nigeria, Egypt, Morocco and Kenya, account for 70 percent of all revenue.
South Africa alone generated about $26.4 billion in 2024, which is more than a quarter of the continent’s banking income, which makes it clear how much Africa’s financial power depends on a few economies.
For global investors, that use presents both an opportunity and a risk: the scale is there, but not widely distributed.
Profits hit the world
Equity returns stand at 19 percent in 2024 and are expected to drop slightly to 17 percent in 2025, still above the global average of around 10 percent.
These strong currencies have been driven by high interest rates, high borrowing costs, and an increase in trade and foreign exchange.
However, the report suggests that these gains may not be entirely structural. Cost efficiency has not improved significantly, and cost levels are rising broadly by global standards.
Simply put: banks make a lot of money, but they don’t necessarily do well.
A hidden gap: rapid growth that is not fully visible
One of the most striking findings is the disparity between how fast African banks are growing and how that growth appears on paper.
On a constant income basis, taxes grew by 17 percent annually between 2020 and 2024, more than twice the global average.
But in U.S. dollar terms, growth slowed to 5.2 percent on the year, as currency slumps in several markets dampened news gains.
That gap is important. It affects the way international investors, lenders and partners assess the true size and performance of the sector.
Although the growth of the dollar rises to 7 percent by 2025, the volatility of the exchange rate remains one of the biggest obstacles in the story of African finances.
What will drive the next step
Lending remains the backbone of the industry, generating more than $30 billion in 2024 and accounting for 30 percent of the total.
It is expected to remain a large tax pool, potentially reaching $52 billion by 2030.
At the same time, small and medium enterprises are emerging as the fastest growing sector, reflecting a structural change as more African firms seek formal financing.
Digital banking and payments have also expanded rapidly, driven by mobile technology and urban youth, trends that continue to differentiate Africa from mature banking markets.
From fast to long
The big question now is whether the sector can handle its burden.
Much of the recent performance has been supported by favorable conditions, particularly high interest rates and foreign exchange gains, which may not continue.
As those banks disappear, banks will need to rely more on structural strength: diversified financing, strong risk management, and the ability to convert domestic earnings into stable, hard-earned cash value.
The report argues that African banks are no longer just a story of promise, but of proven performance and stability.
The next chapter, however, will determine whether that process can translate into sustainable, long-term growth in a deteriorating global economy.
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