For years Nigeria’s financial-inclusion drive ran on a simple premise: enrol everyone, as early as possible, and the formal economy widens. The Central Bank of Nigeria has now drawn a line through part of that logic. Under its March 2026 circular, the CBN set 18 as the minimum age for a Bank Verification Number, discontinuing BVNs issued to minors.

The move tightens the identity layer that sits beneath almost every regulated account in the country. A BVN is the single biometric key that ties a person to their accounts across banks, and extending it to children created records with thin documentation and uncertain consent. Pulling the threshold up to legal adulthood removes a category of low-assurance identities that fraud rings and lax onboarding could exploit.

For operators, the practical effect lands on products built around younger users. Teen-focused wallets, school-fee savings tools and youth accounts marketed by banks and fintechs such as Paystack-adjacent and OPay-style players will need a guardian-linked structure rather than a standalone BVN per minor. The reform pushes the industry toward custodial design, where a verified adult carries the regulatory weight and the minor sits beneath it rather than holding an identity of their own. Products already in market will need to migrate, not just new ones. The CBN set out the change alongside a wider package on instant payments and dormant accounts.

The takeaway: Nigeria is trading a wider enrolment count for a cleaner one, betting that fewer, better-verified identities serve the formal economy better than sheer reach.