The Rise of Open Banking in Asia-Pacific

The Asia-Pacific region has emerged as the world's most dynamic market for open banking, surpassing Europe in both the speed of adoption and the breadth of use cases. While the European Union's PSD2 framework established the regulatory template for open banking globally, several APAC markets have built on that foundation with regulatory approaches that are more ambitious, more prescriptive, or more market-driven, depending on the jurisdiction. According to a 2025 report by Accenture, the APAC open banking market is projected to reach forty-three billion dollars in revenue by 2027, up from twelve billion dollars in 2024, driven by regulatory mandates, shifting consumer behavior, and aggressive investment from both incumbents and fintech challengers.

Australia: The Consumer Data Right Pioneer

Australia has established the most comprehensive open banking regime outside of Europe through its Consumer Data Right framework, which extends beyond banking to include energy, telecommunications, and insurance. The CDR, which began rolling out in 2020, requires Australia's major banks to make customer data available through standardized APIs to accredited third-party providers with the customer's consent. The regime is notable for its reciprocity requirement: the same data-sharing obligations that apply to the major banks will eventually apply to all participants in the ecosystem, including fintech companies, creating a genuinely level playing field.

The Australian approach has driven significant adoption. By early 2026, over five million Australians had actively used open banking services, and the number of accredited data recipients had grown to over one hundred. The most popular use cases include account aggregation, where consumers view all their financial accounts through a single interface, and loan applications, where open banking data enables lenders to assess creditworthiness without requiring applicants to submit bank statements manually. According to the Australian Competition and Consumer Commission, which administers the CDR, the average home loan application using open banking data is processed in half the time of a traditional application.

Australia's open banking ecosystem has also produced meaningful innovation in payments. PayTo, the Australian equivalent of the European SEPA Request-to-Pay, enables merchants to initiate real-time payments from customer accounts through the New Payments Platform. Unlike card payments, which incur interchange fees of 1 to 2 percent, PayTo transactions settle through the NPP at a fraction of the cost. For high-volume merchants, particularly in subscription and recurring billing industries, PayTo represents a significant cost reduction opportunity. By 2025, PayTo transactions were growing at a rate of 40 percent quarter over quarter, driven by adoption in the insurance, utilities, and education sectors.

Singapore: The API-First Regulator

Singapore's Monetary Authority has taken a different approach to open banking than Australia's regulatory mandate. Rather than imposing data-sharing obligations through legislation, MAS has fostered open banking through guidance, standard-setting, and industry collaboration. The Singapore Financial Data Exchange, launched in 2020, provides a centralized consent-management platform that allows consumers to share their financial data across participating institutions. Unlike Australia's CDR, which allows accredited third parties to access bank APIs directly, Singapore's model routes all data sharing through the central exchange, providing an additional layer of security and consent management.

The MAS approach has produced a highly collaborative ecosystem. Singapore's major banks, including DBS, OCBC, and United Overseas Bank, were early adopters of open APIs and have published extensive API developer portals that third-party providers can use to integrate banking services. DBS alone has published over 500 APIs across categories including payments, accounts, lending, and rewards, and reports that its API platform processes over four hundred million API calls per month. The bank's open API strategy has enabled partnerships with over one hundred fintech companies, powering use cases from payroll disbursement to trade finance.

Singapore's position as a global trade hub has made it a natural center for open banking applications in cross-border trade finance. The SGTraDex platform, built on open banking principles, enables the digital sharing of trade documents and financing data among banks, shippers, and importers. By making trade finance data accessible through standardized APIs, the platform has reduced the time required to process trade finance applications from days to hours and has expanded access to trade finance for small and medium-sized enterprises that previously could not meet traditional documentation requirements.

Japan: The Late Mover with Unique Advantages

Japan entered the open banking space later than Australia and Singapore, but its approach reflects the unique characteristics of the Japanese financial system. The Japanese Banking Act was amended in 2021 to require banks to establish open API connections with third-party providers, but the implementation has been gradual and has focused on electronic payment and fund transfer services rather than the broader data-sharing model adopted in other markets. By early 2026, all of Japan's major banks had launched open APIs, but adoption among smaller regional banks has been slower.

Japan's unique advantage in open banking comes from its existing payment infrastructure. The country's real-time payment system, Zengin-Net, already processes over two billion transactions per year and is one of the fastest and most reliable payment systems in the world. The integration of open banking APIs with the Zengin-Net system has enabled a new generation of payment initiation services that allow consumers to authorize payments directly from their bank accounts without using credit cards or digital wallets. For merchants, these account-to-account payments offer significantly lower transaction costs than card processing, with fees typically ranging from 0.2 to 0.5 percent of the transaction amount.

The Japanese market has also seen innovation in open banking-enabled lending. Major fintech platforms like Paidy and Line Pay have integrated open banking APIs to offer instant credit decisions based on real-time bank account data rather than traditional credit bureau scores. This has expanded access to credit for consumers and small businesses that may not have extensive credit histories but have demonstrated consistent cash flow through their bank accounts.

Hong Kong and the ASEAN Markets

Hong Kong's open banking journey, guided by the Hong Kong Monetary Authority, has progressed through a phased approach focused on four phases: product information sharing, customer information sharing, transaction initiation, and open banking ecosystem development. By early 2026, Hong Kong had completed the first three phases, with over thirty banks participating in the open API framework and over forty third-party service providers offering open banking-enabled services. The HKMA's decision to adopt a phased, voluntary approach rather than a regulatory mandate has resulted in slower adoption than in Australia but has produced a more carefully calibrated ecosystem with fewer security incidents.

In Southeast Asia, the open banking landscape is more fragmented but equally dynamic. Thailand's national e-payment system, PromptPay, has become one of the most successful real-time payment systems globally, processing over one billion transactions per month, and has created the infrastructure for open banking services built on the PromptPay rails. Indonesia's Open API standard, published by the Indonesian central bank in 2022, has driven adoption among the country's over one hundred banks, though implementation has been uneven across the banking sector.

The Philippines, Vietnam, and Malaysia are at earlier stages of open banking development but are moving quickly, driven by high mobile penetration rates, large unbanked populations, and government digitalization initiatives. The Philippines' National Retail Payment System, launched in 2020, has created the foundational infrastructure for open banking services, and the country's Open Finance framework, published in 2023, establishes the regulatory guidelines for data sharing across financial institutions.

What APAC Open Banking Means for Merchants

For merchants operating in APAC markets, the rise of open banking creates two significant opportunities. The first is lower payment processing costs through account-to-account payment methods. As open banking-enabled payment initiation services become available across APAC markets, merchants can offer customers the option to pay directly from their bank accounts, bypassing card network interchange fees entirely. In markets like Australia and Singapore, where PayTo and similar services are gaining traction, merchants can reduce their payment processing costs by 50 percent or more on transactions routed through open banking rails.

The second opportunity is improved customer insights and risk assessment. With customer consent, merchants can access bank transaction data that provides a more complete picture of a customer's financial health than traditional credit scoring methods. For merchants offering buy now, pay later services or installment payment options, open banking data enables more accurate credit decisions, reducing default rates and expanding the customer base that qualifies for financing. For B2B merchants offering trade credit, open banking data provides real-time visibility into a business customer's cash flow and payment patterns, enabling more informed credit decisions and earlier detection of financial distress.

The regulatory divergence across APAC markets creates complexity for merchants operating in multiple jurisdictions, but the overall direction of travel is clear. Open banking is becoming a fundamental part of the payment infrastructure across the region, and merchants who prepare for it now will be well positioned to capture the benefits of lower costs, better customer insights, and faster payment settlement as the ecosystem matures.