The Infrastructure of Reach
The next question is narrower and more practical: how does financial inclusion reach a person in the first place? This chapter examines the infrastructure connecting a phone, a verified identity, a provider, and an account. Understanding those interfaces helps explain both the speed of recent inclusion gains and the points where affordability, device quality, or provider design can interrupt them. It also clarifies why connectivity creates the possibility of wider credit access without, by itself, proving that borrowing will be safe or sustainable.
The first interface is the device
The Global Findex 2025 treats digital connectivity as access to and use of the internet or dedicated applications through a connected device. That definition matters because a phone is not merely a piece of consumer electronics in this context. It is often the first interface between a person and an account, a payment system, a government service, or a lender.
The reach of that interface is already broad. In 2024, 86 percent of adults worldwide owned a mobile phone. In low- and middle-income economies the share was 84 percent. Internet use was lower: 67 percent of adults in those economies reported using the internet, primarily through a smartphone. The difference between those figures is important. A person can have a phone without having the device, data plan, network, or skills needed for full internet access.
The distinction between phone types makes the point sharper. Smartphones can run applications and full web browsers, which makes them useful for richer financial services and for activities such as online learning or earning money. Basic phones are more limited, but they can still support calls, text messages, and mobile-money transactions through systems that do not require a web browser. Their lower price, smaller data demands, and longer battery life can make them more practical where incomes are low or electricity is unreliable.
A less capable device is therefore not the same thing as no financial access. It may be enough to send money, receive a payment, or make a small deposit. But it does narrow the set of services that can be used. A basic phone may support a payment while making it harder to compare products, read a long disclosure, monitor an account balance, or complete a digital application. “Digital” is not a single level of capability; the interface determines what a user can see and do.
The distribution of devices also reveals why infrastructure is inseparable from inequality. In low- and middle-income economies, adults in the poorest 40 percent of households were eight percentage points less likely to own a phone than adults in the wealthiest 60 percent. The urban-rural gap was also substantial: 77 percent of rural residents owned a phone, compared with 90 percent of urban residents. Education and employment mattered as well. Adults with primary education or less had lower phone ownership than those with at least secondary education, and adults outside the workforce were less likely to own a phone than wage-employed adults.
These are not simply demographic differences to be recorded in a table. They are differences in the probability of being able to enter and remain inside a financial system. A person without a personal phone may depend on someone else to receive a message or make a transaction. A rural resident may face both a weaker network and a longer distance to a cash-in or cash-out point. A person with a basic phone may be able to use mobile money but not the internet-based services increasingly attached to a bank account. The same account product can therefore have different practical value for different users.
The link between device ownership and financial use is strongest where mobile platforms reduce the cost of reaching customers. Mobile-money providers commonly operate through local agents who accept deposits, process withdrawals, or help users enter the system. This arrangement can make small, frequent transactions possible without a branch visit. It is especially relevant for saving: a person can deposit a modest amount near a shop or market rather than waiting until they have enough time and money to travel to a bank.
That convenience is a mechanism, not a guarantee. It can lower distance and transaction costs, but the user still depends on network reliability, agent liquidity, clear fees, and a safe way to authenticate a transaction. If any of those fail, the device is connected in a technical sense while the financial service remains difficult to use.
From a signal to an account
The second interface is institutional. A phone becomes a financial channel only when a provider, an identity system, and an account architecture connect it to a regulated or recognized service. The Global Findex defines account ownership to include an account at a bank or similar financial institution—such as a credit union, microfinance institution, or post office—or an account with a mobile-money provider included in the relevant industry tracker. Both types of account can be used at a minimum to store money and send or receive payments, but they are not interchangeable.
A bank or similar institution traditionally maintains a physical presence and operates under prudential regulation. Its account may be digitally enabled if the owner can make or receive payments with a phone or card. A mobile-money account is primarily accessed through a phone and may be offered by a telecommunications company or fintech provider operating independently of a traditional bank. Some mobile-money services have bank partners or banking licenses, but the user experience and operating model can still differ substantially from a branch-based account.
This distinction helps interpret the growth figures. In 2024, 79 percent of adults worldwide had an account, while 75 percent of adults in low- and middle-income economies did. Mobile-money ownership reached 18 percent in low- and middle-income economies, 40 percent in Sub-Saharan Africa, and 37 percent in Latin America and the Caribbean. In Sub-Saharan Africa, mobile money was not merely an add-on to bank access: a large share of account owners had only a mobile-money account. In other regions, mobile money was more often combined with or used to digitally enable a bank or similar account.
The provider architecture changes who can be reached. A traditional bank may evaluate a customer through a branch, paperwork, and an established financial history. A mobile-money service may begin with a phone number, an agent relationship, and a simpler transaction account. That difference can open a channel for people who would otherwise be excluded from formal finance. It can also mean that the first formal financial relationship a person has is not a conventional bank loan but a mobile account used for payments or small savings.
The difference is also about who carries the burden of keeping the account usable. In a branch-centered model, the institution owns much of the process: staff verify documents, explain products, and handle withdrawals or complaints. In a mobile model, responsibility is distributed across the network operator, the software interface, the agent, and the customer. The customer may need to remember a PIN, distinguish a legitimate message from a scam, find an agent with enough cash, and understand which fees apply. A product can therefore be formally available while its practical cost is high in time, attention, or risk.
That distribution affects the quality of the financial relationship. A simple account that supports deposits and payments may be an important first step, but it does not automatically create a history that a lender can use responsibly. Nor does a digital interface guarantee that a customer will receive a clear explanation of repayment terms. The same infrastructure that lowers the cost of reaching a new user can lower the cost of offering that user more products. Whether that is beneficial depends on the quality of onboarding, the transparency of terms, and the provider’s incentives.
Identity is another interface rather than a background administrative detail. The World Bank’s identification data show that government-issued ID is often a prerequisite for buying a SIM card, accessing financial services, and transacting with institutions that handle personal information. Across low- and middle-income economies, 95 percent of adults had ID, but ownership was lower in parts of Sub-Saharan Africa. In economies with lower ID ownership, adults without ID frequently reported difficulty buying and registering a SIM in their own name. Without that registration, a person may be unable to use the phone and related financial services on equal terms, even when a network is available nearby.
The result is a chain of dependencies. It is useful to think of it as a sequence rather than a checklist. A person may own a phone but lack a usable network. They may have a network but lack a registered SIM. They may have both and still be unable to open an account because the identification process is too expensive or distant. They may open an account but be unable to use it regularly because the nearest agent has no cash, the interface is difficult to navigate, or the fees make small transactions uneconomic. Each step changes the practical meaning of the next one.
This sequence also explains why averages can mislead. A high phone-ownership rate does not show that people can reach the internet. A high account-ownership rate does not show that the account is active. A high mobile-money rate does not show that users can withdraw funds reliably or recover a mistaken payment. The Findex data are valuable precisely because they separate some of these questions, but even they cannot observe every operational failure. Infrastructure analysis therefore asks not only whether a service exists, but where control, cost, and recourse sit when something goes wrong.
The result is a chain of dependencies:
Each arrow is an interface where ownership or control matters. The user owns or shares the device. A network operator controls connectivity. An identity authority determines whether the SIM and account can be registered. A provider determines onboarding, fees, authentication, and the services available after registration. Agents determine whether cash can actually move into or out of the digital system. A failure at one interface can look like a lack of demand when it is really a problem of price, paperwork, coverage, or design.
This is why account ownership should not be read as a simple measure of completed inclusion. The Findex report itself distinguishes survey responses from supply-side data reported by financial institutions. Institutional data may count inactive accounts or count the same person more than once, while respondents may fail to report an account or may describe an account they rarely use. The demand-side measure is valuable because it asks about people’s actual access and behavior, but it remains a snapshot of reported experience.
The gap between nominal access and usable access also appears within provider types. A bank account may exist but require a costly trip to withdraw cash. A mobile-money account may be nearby but exposed to agent shortages or unclear charges. A phone-enabled account may be technically available to a user who cannot read the interface, cannot protect the device, or must rely on another person to complete a transaction. These are not reasons to reject digital delivery. They are reasons to judge the delivery system, not just the number of accounts it has created.
There is a further reason to keep the interfaces visible: they shape the pace and composition of expansion. If onboarding becomes cheaper and a provider can reach more users through agents or a phone, the borrower pool may widen quickly when credit products are added. That can be a useful extension of financial access, but it also means that a system-level increase in borrowers may reflect changes in distribution technology as much as changes in household demand. To interpret the growth, analysts need to know which interface changed, which users entered, and what standards governed the products offered to them.
Scale creates possibility, not a verdict
The infrastructure explains how financial inclusion can accelerate. Phones create a personal channel, networks connect that channel, identity makes it legible to providers, and mobile-money or digitally enabled bank accounts let transactions travel through it. Local agents can reduce the cost of small deposits and withdrawals. Together, these arrangements can move people into formal finance faster than a branch-only model could.
The same chain also explains why a rise in access cannot, on its own, settle the later question about credit risk. A provider that can reach more people can offer more people a loan, but reach does not reveal the loan’s price, the borrower’s income stability, or the lender’s standards. A larger borrower pool may represent productive opportunity, emergency support, or aggressive expansion into customers with weak buffers. Connectivity supplies the channel through which credit can spread; it does not determine what travels through the channel.
That distinction preserves both sides of the evidence. The spread of mobile money and digitally enabled accounts is a major reason financial inclusion has advanced. But the infrastructure must be assessed by whether people can use it safely and affordably, not merely whether a provider can register them. As the focus moves from access to actual financial behavior, the decisive questions become what people save, pay, and borrow—and whether those uses leave them more resilient or more exposed.