Banking-as-a-Service and the Hidden Risks of Digital Finance

For nearly a century, confidence in the banking system has rested on a simple institutional promise: deposits held in regulated banks are protected. In the United States, the phrase “FDIC-insured” has become shorthand for that guarantee, reassuring customers that their savings are backed by supervision, deposit insurance, and the broader financial safety net of the federal government (Federal Deposit Insurance Corporation [FDIC], 2023). Because deposit insurance ensures that customers can recover their funds even when banks fail, the credibility of this safeguard has historically been central to public trust in the banking system (Allen & Carletti, 2013).

Today, however, the architecture through which financial services reach consumers is undergoing a rapid transformation. A model known as Banking-as-a-Service (BaaS) allows fintech platforms to offer bank accounts, payment cards, and lending products through partnerships with licensed banks. Because digital platforms can integrate financial services directly into mobile applications and online ecosystems, banking functions increasingly appear within technology platforms rather than through traditional bank channels (Basel Committee on Banking Supervision [BCBS], 2018; Zetzsche et al., 2020). Recent coverage in the Financial Times highlights how embedded finance and BaaS partnerships are expanding across e-commerce platforms and digital ecosystems (Financial Times, 2026).

Traditional banking has historically followed a straightforward structure: customers interact directly with banks, and those banks hold deposits, manage accounts, and comply with prudential regulation (Allen & Carletti, 2013). The rise of BaaS introduces a different institutional arrangement. Fintech firms increasingly control the customer interface and the digital platform through which services are delivered, while licensed banks provide the underlying regulated infrastructure. Because fintech companies manage the customer relationship while banks operate behind the scenes, the institution interacting with customers is often not the institution legally responsible for safeguarding deposits (BCBS, 2018).

This shift introduces uncertainty about how financial protections operate in practice. Many fintech platforms offer products that resemble traditional bank accounts, leading customers to assume that their funds are protected in the same way as deposits held directly at banks. Yet the legal and operational arrangements supporting these accounts can be more complex (Awrey, 2026). Because fintech accounts frequently rely on pooled deposit structures at partner banks, identifying individual customer balances may depend on internal platform records rather than on separate bank accounts held directly in the customer’s name.

Deposits offered through fintech applications are often maintained in pooled accounts at partner banks. If record-keeping errors, reconciliation problems, or technology disruptions occur, customers may temporarily lose access to their funds while institutions determine how much money belongs to each account holder (FDIC, 2023). Because access to deposits depends on accurate reconciliation between fintech platform records and bank account records, operational failures within the platform can delay customer access to funds even when deposits are insured.

The complexity of these relationships increases as BaaS ecosystems expand. A single licensed bank may provide infrastructure services to dozens of fintech platforms, while each platform may depend on payment processors, card networks, compliance vendors, and technology providers to deliver services to customers (Organisation for Economic Co-operation and Development [OECD], 2021). Because multiple institutions and technology providers collaborate to deliver a single financial service, operational dependencies across the ecosystem increase significantly.

These multilayered networks introduce new operational risks. The Financial Stability Board notes that modern financial systems increasingly rely on interconnected digital infrastructure and third-party service providers, which can create vulnerabilities if disruptions occur within critical technology providers (Financial Stability Board [FSB], 2023). Because failures in a single infrastructure provider can affect multiple fintech platforms and partner banks simultaneously, operational disruptions may propagate across the broader financial ecosystem.

Economic incentives also contribute to the expansion of BaaS. Obtaining a banking license requires substantial capital, compliance systems, and ongoing supervisory oversight. By partnering with licensed banks instead of becoming banks themselves, fintech firms can deliver banking services without assuming the full regulatory burden associated with deposit-taking institutions (Zetzsche et al., 2020). Because fintech firms can provide banking-like services without obtaining full banking licenses, financial activity can expand through technology platforms that operate outside the traditional regulatory perimeter governing banks.

This model lowers barriers to entry and accelerates financial innovation, but it can also shift risks toward parts of the financial ecosystem that historically received less regulatory scrutiny. Research on financial innovation suggests that technological change often develops faster than supervisory frameworks can adapt (Arner, Barberis, & Buckley, 2017). Because regulatory institutions tend to evolve more slowly than financial technology, new digital banking models may expand before oversight mechanisms fully adjust to monitor their risks.

Periods of stress often reveal the resilience of financial infrastructures. If a fintech platform experiences bankruptcy, operational failure, or a major technology outage, customers may suddenly find themselves navigating multiple institutions to recover access to their funds (Awrey, 2026). Because recovering deposits may require coordination between fintech platforms, partner banks, and regulators, disruptions in one platform can delay access to funds across several institutions.

These delays matter because banking ultimately depends on public confidence. Because trust is the foundation of financial stability, disruptions that prevent customers from accessing their deposits — even temporarily — can undermine confidence in digital financial services (Allen & Carletti, 2013).

Ultimately, the rise of Banking-as-a-Service reflects a broader transformation in financial services. Digital platforms are reshaping how consumers access payments, savings, and credit products. Yet financial systems differ from most digital markets in one critical respect: they depend on trust.

Ultimately, the question raised by Banking-as-a-Service is not whether fintech will reshape banking — it already has — but whether the governance of financial infrastructure can evolve quickly enough to ensure that innovation does not outpace the safeguards needed to sustain public trust in the financial system.

Disclaimer

This article is intended for informational and analytical purposes only and does not constitute financial, investment, or legal advice. The views expressed are those of the author and should not be interpreted as recommendations regarding financial decisions or investment strategies.

References

Allen, F., & Carletti, E. (2013). Systemic risk from real estate and macroprudential regulation. International Journal of Central Banking.

Arner, D. W., Barberis, J., & Buckley, R. P. (2017). FinTech and RegTech in a nutshell, and the future in a sandbox. Research Foundation of CFA Institute.

Awrey, D. (2026, March 9). Banking, technology, and instability. Columbia Law School Blue Sky Blog. https://clsbluesky.law.columbia.edu/2026/03/09/banking-technology-and-instability/

Basel Committee on Banking Supervision. (2018). Sound practices: Implications of fintech developments for banks and bank supervisors. Bank for International Settlements.

Bloomberg. (2026). Fintech partnerships face increasing regulatory scrutiny.

Federal Deposit Insurance Corporation. (2023). Deposit insurance and consumer protection in fintech banking arrangements.

Financial Stability Board. (2023). Enhancing third-party risk management and operational resilience in financial services.

Financial Times. (2026). Embedded finance and fintech infrastructure reshape digital banking.

Organisation for Economic Co-operation and Development. (2021). Digital disruption in financial services.

The Economist. (2026). Fintech platforms and the changing structure of banking.

Zetzsche, D. A., Buckley, R. P., Arner, D. W., & Barberis, J. N. (2020). Regulating fintech in the digital age. Journal of Banking Regulation.

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