Cash is declining in many economies, and digital payments are taking its place. The shift brings convenience and lower costs for many users, and it raises questions that existing rules were not written to answer. When payments move from notes and coins to apps and cards, the infrastructure, the risks and the protections all change.
The transition is uneven. Some countries have moved quickly, others remain heavily cash-based, and within every country some people depend on cash more than others.
Why cash declines
People adopt digital payments when they are cheaper, faster or more convenient than cash. Merchants adopt them when they reduce handling costs and theft. Banks and platforms promote them because they generate data and fees. The combination is powerful, and it tends to push cash out of everyday use once the infrastructure exists.
Who is left behind
Older people, those without smartphones, people in areas with poor connectivity and those outside the formal financial system are the last to switch. If cash disappears before they can adapt, they lose access to everyday transactions. This is why some countries have committed to keeping cash available even as digital use grows.
The infrastructure question
Digital payments depend on electricity, connectivity and functioning platforms. A power outage or a network failure can stop transactions entirely, which cash never does. Resilience planning for payments has become part of the conversation about critical infrastructure.
Digital payments create new forms of fraud, from phishing to authorised push-payment scams. Rules written for cards do not always fit instant transfers, where money moves before anyone can intervene. Regulators are developing protections, and they lag behind the pace of innovation.
Data and privacy
Every digital payment leaves a record, which is useful for fighting crime and creates a detailed picture of a person’s life. Rules on who can access that data, and for what, are uneven. The balance between tracing illicit flows and protecting privacy is contested.
The indicators worth following are the share of transactions that are digital, the availability of cash and the volume of payment fraud. Those figures show whether the transition is inclusive and safe, or merely fast.

The role of merchants
Merchants are the hinge of the transition. They adopt digital payments when the fees are low enough and the settlement is reliable, and they keep accepting cash when those conditions fail. In many markets, small retailers bear the cost of card fees and terminal rentals, which is why cash persists even where digital payments are widespread. Pricing rules and competition among providers determine whether the cost falls on merchants or is passed to customers, and that distribution shapes how quickly cash disappears from ordinary shopping.
Domestic digital payments have improved quickly in many countries, and cross-border payments remain slow and expensive. Remittances and business transfers still pass through chains of intermediaries, each taking a margin. Connecting national systems directly would reduce cost and delay, and it requires coordination on standards, compliance and currencies that has proved difficult to achieve at scale.
What financial inclusion requires
Digital payments can widen financial inclusion, and they do not do so automatically. A person needs an identity, a phone, a network and a trusted provider to open an account, and each of those can be missing. Countries that expanded inclusion fastest often combined digital payments with simplified identity requirements and a network of agents who could open accounts locally. The technology was necessary and not sufficient, and the institutional work around it determined who was actually reached.
A payments system that depends on a few platforms concentrates risk. When a major provider suffers an outage, transactions across an economy can stop. Central banks and regulators are increasingly attentive to this concentration, and some have built public back-up systems or required interoperability so that a failure in one platform does not halt payments entirely. Resilience in payments is now treated as a matter of financial stability, not just consumer convenience.
The road ahead
The transition to digital payments is likely to continue, and the policy task is to make it inclusive and safe rather than merely fast. That means keeping cash available for those who need it, requiring interoperability so that no single provider can halt an economy, protecting consumers against fraud, and setting clear rules on data. None of these is technically difficult, and each requires regulators to keep pace with markets that move faster than legislation. The countries that manage the transition well will be those that treated payments as infrastructure rather than as a private convenience.
The international dimension
Payments cross borders, and domestic reforms interact with international rules on data, sanctions and settlement. A country that modernises its payment system still depends on correspondent banking for cross-border flows, which remain slow and costly. Linking national systems directly is a technical and diplomatic project that several regions are pursuing, and it advances at the pace of the slowest participant. Domestic progress can be fast; international progress is measured in years, and the gap between the two is where most of the friction remains.
This report draws on the Bank for International Settlements and the World Bank’s financial inclusion work.
Image: Keministi · CC0 · via Wikimedia Commons.