M-Pesa moves more than a billion dollars a day across Africa, and for nearly two decades the mobile-money networks it pioneered have become the default Africa payments rails. They taught hundreds of millions of people to send money by phone, and they built durable businesses on the fees for doing it. Those same networks now face a threat from the rails their own users are adopting, because stablecoins undercut the exact transactions that made mobile money profitable.
The vulnerability sits in the fee structure. Mobile-money operators earn on cross-border transfers and on cash-in, cash-out, the moments when money enters or leaves the system. Those are the high-margin flows, and they are precisely where stablecoins are cheaper. A cross-border transfer that costs 7 to 9 percent through traditional channels drops to 1 to 3 percent over a stablecoin rail, and the saving comes straight out of the fee pool the mobile-money networks have relied on. The threat is not to mobile money as a concept. It is to the most lucrative slice of how it earns.
The disintermediation runs through their own customers
What makes the pressure acute is that users do not have to leave the mobile-money network to escape its fees. In Kenya, Zambia, Tanzania and Uganda, people already link their M-Pesa or MTN MoMo wallets to crypto accounts, using the mobile-money balance as the on-ramp and off-ramp for a stablecoin transfer. The expensive cross-border leg moves to the stablecoin, and the mobile-money network is relegated to the cheap local cash-out at the end. The customer keeps using the wallet, but for the low-margin part, while the profitable cross-border fee migrates to a rail the operator does not control.
That is disintermediation from inside the customer base, which is the hardest kind to fight. The networks cannot simply block the linkage without degrading the service users value, and the more smoothly mobile money connects to everything else, the easier it is for the stablecoin to slot in and skim the best flow. The infrastructure the operators built to be open and ubiquitous is the same infrastructure that lets a cheaper rail attach to it.
On-ramp or be bypassed
The strategic choice in front of M-Pesa, MTN MoMo and their peers is stark. They can fight the stablecoin rails and watch users route around them, or they can become the on-ramp and off-ramp for those rails and earn a smaller, defensible fee on the cash-in and cash-out instead of the fat margin on the cross-border leg. The second option trades a high-margin business that is eroding for a lower-margin one that is durable, because conversion between cash and digital value is something the stablecoin rail genuinely needs and the mobile-money network is uniquely good at providing.
Some operators see it. Integrations that let users move between mobile money and stablecoins are spreading, which is the networks beginning to position themselves as the conversion layer rather than the transfer layer. It is a managed retreat from their most profitable flow toward a role they can keep. The alternative, defending the old fee structure, loses slowly to a rail that is simply cheaper for the customer, and no amount of network ubiquity beats a 6-percentage-point price difference on the transaction that matters most to the people sending money.
The reaction is already taking shape, unevenly. Some operators are partnering with stablecoin providers and exchanges to offer compliant Africa payments conversion inside their own apps, capturing a fee on the on-ramp rather than ceding the customer entirely. Others are lobbying regulators to slow the crypto linkages that bypass them, a defensive move that buys time without solving the underlying price problem. The split mirrors a familiar incumbent dilemma: operators that treat the new rail as a partner to plug into tend to keep their relevance, while those that treat it as a threat to legislate against keep their margins for a while and then lose both. Which path each network takes will decide whether mobile money becomes the connective tissue of African stablecoin adoption or a toll booth users learn to drive around.
Scale cuts both ways here. The same hundreds of millions of users that make M-Pesa and MTN MoMo formidable also make them a large, slow target, because a network that big cannot quietly re-engineer its fee model without the change being felt across whole economies. A nimble entrant can price the cross-border leg near zero and absorb the loss to win users; an incumbent earning real profit on that leg cannot match the price without gutting its own results. The size that protects the networks in payments is the weight that slows them in this fight.
The broader pattern should worry every payment incumbent that built a moat on cross-border fees. Mobile money was the disruptor a decade ago, the technology that leapfrogged bank branches and brought Africa onto digital payments. Now it is the incumbent being leapfrogged, by a rail that does the expensive part of its business for a fraction of the price. The networks that survive will be the ones that accept they no longer own the cross-border transfer and make themselves indispensable to whoever does. The ones that defend the old margin will keep the customers and lose the business.