WASHINGTON — Governments from Brazil to India are reporting faster payments, cheaper identity checks and smoother data sharing as digital public infrastructure moves from pilot projects to nationwide systems in 2025. Backers say the approach cuts costs by replacing one-off platforms with reusable public “rails” — open ID, payments and data exchange — that both agencies and private firms can plug into under national rules, Dec. 27, 2025.
New research is beginning to put a map to the momentum. The 2025 State of Digital Public Infrastructure Report says that, as of 2025, at least 64 countries have DPI-like digital ID systems, 97 have DPI-like digital payment systems and 103 have DPI-like data exchange systems, based on a review spanning 210 countries.
Digital public infrastructure: open ID, payments and data rails
In a March 2025 white paper, the World Bank’s work on digital public infrastructure describes DPI as foundational digital building blocks designed for the public benefit. The model centers on three functions that show up across sectors: proving who someone is (and verifying it securely), moving money quickly and cheaply, and enabling trusted data sharing so services can work across agencies and providers.
For finance ministries, the sell is duplication — and the bill that comes with it. Instead of every department funding its own ID checks, payment pipes and data connectors, digital public infrastructure tries to create one set of rails that many services can reuse. For the private sector, advocates say that standards-based rails can widen competition by making it easier for smaller firms to build on top of shared systems, rather than negotiating access to closed platforms.
Payments rails: Brazil’s Pix shows what scale looks like
Brazil’s Pix has become a widely watched example of what a public payments rail can do after mass adoption. Reuters reported that Pix handled more than 26 trillion reais ($4.61 trillion) in transactions last year and that a recurring-payments feature, Pix Automatico, was set to go live June 16, 2025. Policymakers see the expansion as a reminder that digital public infrastructure is not a single launch, but an evolving platform that can add capabilities once the basics are in place.
Identity and data rails: savings, but governance pressure
Proponents say the clearest cost gains often appear where identity checks and transfers happen at high volume — opening accounts, delivering benefits and paying vendors. In an April 2025 essay, the Gates Foundation’s analysis of digital public infrastructure cited India’s experience, saying the Aadhaar digital ID cost roughly $1.5 billion to implement and helped drive savings by reducing fraud, error and leakage in public programs, while sharply lowering the cost of bank identity verification.
At the same time, stacking identity, payments and data exchange into a national backbone can concentrate risk if rules and oversight lag behind deployment. The Universal DPI Safeguards Framework calls for rights-based protections across the DPI life cycle — from design and development to deployment and operations — including safeguards against exclusion, discrimination and weak accountability, along with warnings about vendor lock-in.
The current surge has deep roots. Estonia’s 2014 move to extend e-residency beyond citizens highlighted government-backed digital identity as a platform for cross-border business, according to ABC News. A 2016 World Economic Forum essay on India Stack laid out an early blueprint for connecting identity, payments and consent-based data sharing as a public-good approach. In 2017, the Center for Global Development described how Aadhaar’s scale helped spur new layers — including e-KYC and digital documents — and argued that shared infrastructure can unlock new services once the first layer is trusted.
What has changed since those early case studies is velocity — and the geopolitical framing. Digital public infrastructure is increasingly treated as a procurement strategy and a sovereignty decision: build rails open enough to spur innovation, but governed tightly enough to protect privacy, security and the people most likely to be left out.
