Bank Zero, the South African app-only bank, has reached break-even five years after opening to the public, with a partnership model that could now let it scale far beyond its own customer base.
The lender recorded its first break-even month in August, meaning its revenue covered its operating costs for the month. It does not mean the bank has become consistently profitable, and Bank Zero expects earnings to remain uneven in the short term.
Its next phase will rely on using its banking infrastructure to bring customers from fintechs, retailers, and digital platforms onto its platform. Bank Zero has 275,000 direct customers, while its alliance-banking partnerships are bringing another 500,000 customers onto the platform, although some overlap with its existing base.
The scale of the alliance-banking strategy marks a significant change for a bank originally designed to reach profitability with around 100,000 customers. Its challenge now is to show that the technology and cost structure that got it to break-even can support a much larger business.
Founded in 2018, Bank Zero opened to the public in August 2021 on the idea that a new lender did not need millions of customers to cover the cost of its technology and operations. Instead of buying an established banking platform and adapting it, the lender built its own.
“The cost profile is fundamentally different from a traditional bank – which is why break-even could be achieved at low customer numbers,” Yatin Narsai, Bank Zero’s chief executive officer (CEO), told TechCabal on Tuesday.
Bank Zero says it invested just under R300 million ($18.5 million) to build its banking platform, support systems and operate the bank until it reached break-even. Narsai estimates that buying and customising a comparable platform would have cost at least R3 billion ($184.6 million), before ongoing maintenance and modification costs.
The technology also gives Bank Zero control over features that would be difficult to add to an off-the-shelf system. Narsai claims a special patent makes card fraud and phishing impossible on the platform, while compliance controls are built directly into the system.
The bank’s model has also attracted more businesses than expected, with business customers now making up 18% of its customer base, compared with 10% in its original business case. More than 80% are registered companies.
“It’s not only about the zero fees. There is unique business-specific functionality,” Narsai said, pointing to digital mandates, multi-level authorisation chains, bulk payments and alerts when account details change.
The economics are also attractive to the bank. “Business customers are significantly more profitable than individuals due to higher account balances,” he added.
Alliance banking is where the model starts to look different. Instead of acquiring every customer itself, Bank Zero provides banking infrastructure to fintechs, retailers and digital platforms, allowing them to issue card products while bringing their customers, deposits and transaction activity onto the platform.
Bank Zero spent more than 18 months developing the alliance-banking proposition before going live in January 2026. Since then, Narsai says demand has been significant.
“Many scheme operators (businesses that run large payment schemes) are wanting to switch to a new end-to-end value chain that’s not only cheaper but also unique,” he stated.
Mukuru, an African remittance fintech serving migrant communities, shows what that could mean at scale. Narsai said 500,000 Mukuru customers are being onboarded onto Bank Zero’s platform, expanding the bank’s reach to more than 700,000 end account holders.
Chairman Michael Jordaan has described Bank Zero’s ability to reach profitability without a lending book as another advantage. The bank reached profitability with a relatively small customer base without taking on lending risk, with lending potentially providing another source of growth later.
Narsai is now focused on larger partnerships. “We’re going to focus on the big fish, and we are talking about big books,” he said.
Bank Zero originally expected to break even at around 100,000 customers. It reached that point with 275,000 customers, while its alliance-banking strategy is now pushing the platform towards a much larger customer base.
The lender expects earnings to remain uneven in the short term, but forecasts stronger revenue growth and healthy profit in 2027. Much of that growth is expected to come from alliance banking, with new foreign-exchange capabilities also awaiting approval from the South African Reserve Bank.
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