Introduction
For financial technology companies building products around payments, digital assets or tokenized financial instruments, obtaining access to the banking system can be as important as determining which licenses apply to the business. Sponsor banks and banking-as-a-service (BaaS) providers can give non-bank companies access to deposit accounts, payment infrastructure and other banking functions without requiring the FinTech itself to operate as a chartered bank.
The model has become an important part of the infrastructure connecting digital financial products with traditional money. A digital-asset platform, for example, may rely on bank accounts and payment rails to accept dollars, while its customers interact with stablecoins, tokenized assets or other blockchain-based products. The bank provides regulated banking services while the FinTech supplies much of the technology and customer-facing experience.
That structure does not remove regulatory obligations from the FinTech. U.S. banking regulators have emphasized that banks remain responsible for managing risks arising from third-party relationships, including relationships with financial technology companies. In June 2023, the Federal Reserve, Federal Deposit Insurance Corporation and Office of the Comptroller of the Currency issued joint guidance covering due diligence, contracts, ongoing monitoring and termination of third-party relationships.
What Is a Sponsor Bank?
A sponsor bank is a chartered bank that provides regulated banking services used by a non-bank financial technology company. The FinTech may control the application, customer interface and parts of the operational infrastructure, while the bank provides the underlying banking relationship and access to payment systems.
The precise allocation of responsibilities depends on the contractual structure and the products involved. A sponsor bank may provide deposit accounts, payment processing or card-related services, while the FinTech handles technology, customer acquisition and specified operational functions under the bank’s oversight.
The distinction is important because the FinTech is not simply operating a bank under another company’s name. The bank remains subject to banking supervision and applicable requirements concerning safety and soundness, consumer protection and financial crime controls.
The federal banking agencies have also highlighted potential risks in third-party deposit arrangements, including operational, compliance, strategic, liquidity and concentration risks. They have specifically identified the possibility of customer confusion about the role of the bank and the availability of deposit insurance.
How the model connects to payment infrastructure
A sponsor-bank relationship can provide access to established payment infrastructure. Depending on the arrangement, that may include:
- Automated Clearing House (ACH) payments
- Wire transfers
- Real-time payment infrastructure
- Card networks
- Deposit accounts
- Account and ledger infrastructure
For a digital-asset business, these services can provide the fiat-money component of a product whose other functions operate on a blockchain or distributed ledger.
For example, a platform could allow a customer to move dollars into an account associated with the banking program and then use those funds to acquire a digital asset. A later redemption may involve moving value back into the banking system.
The banking relationship therefore serves as an interface between conventional financial infrastructure and newer digital-asset networks.
How Banking-as-a-Service Works
Banking-as-a-service generally packages banking infrastructure and technology into a service that FinTech companies can integrate through software interfaces.
The exact architecture varies. In some models, a FinTech works directly with a bank. In others, a BaaS provider supplies technology, operational services and connectivity between the FinTech and one or more banks.
A typical BaaS arrangement can include:
- Bank sponsorship — A chartered institution provides the regulated banking product.
- Technology infrastructure — APIs and software connect the FinTech application to banking functions.
- Account infrastructure — Customer balances and account records are maintained within the banking structure.
- Payment connectivity — The arrangement can provide access to applicable payment networks.
- Compliance controls — Responsibilities for customer identification, sanctions screening, transaction monitoring and related controls are allocated among the parties.
- Operational oversight — The bank maintains oversight of activities performed by the FinTech or other third parties.
This creates a division between the customer-facing product and the underlying regulated infrastructure. The arrangement can reduce the amount of banking technology a FinTech must build itself, but it also creates dependencies between multiple companies.
Sponsor Banks and Digital Assets
The relationship becomes more complex when banking infrastructure is combined with digital assets.
A digital-asset company may need conventional financial infrastructure for several parts of its business. These can include customer deposits in fiat currency, withdrawals, payment processing, treasury functions and settlement.
Stablecoins
Stablecoin platforms illustrate the connection particularly clearly. A customer may move dollars through the banking system and receive a digital token representing value on a blockchain. When the customer redeems the token, the transaction may eventually require dollars to move through conventional banking infrastructure.
The sponsor-bank relationship can therefore support the fiat side of the transaction without making the bank itself the operator of the digital-asset platform.
Tokenized assets
Tokenized securities and other blockchain-based financial instruments can create a similar division. The asset may be represented or transferred on a distributed ledger, while cash settlement continues to involve bank accounts and conventional payment infrastructure.
The regulatory analysis depends on the characteristics of the asset and the activities performed. A banking relationship by itself does not determine whether a particular digital asset falls within securities, commodities, money-transmission or other regulatory frameworks.
Regulatory Responsibilities Are Not Transferred
One of the most important features of a sponsor-bank model is that the arrangement does not automatically transfer all regulatory responsibility to the bank.
Federal banking regulators have repeatedly emphasized this point in their third-party risk-management framework. The 2023 interagency guidance states that using a third party does not reduce a banking organization’s responsibility to operate safely and comply with applicable laws.
For the bank, oversight can include:
- Third-party due diligence
- Contractual controls
- Compliance monitoring
- Audit and testing
- Customer protection
- Operational resilience
- Cybersecurity and technology risk
- Financial crime controls
- Ongoing monitoring of the relationship
For the FinTech, separate obligations may apply depending on its activities and regulatory status. A company operating as a money services business, for example, may have its own federal Bank Secrecy Act and anti-money-laundering responsibilities.
The U.S. regulatory structure can therefore involve several layers of oversight rather than a single compliance framework.
Why product changes can create problems
A FinTech may initially launch a relatively straightforward payments product and later introduce additional functionality such as a new digital asset, lending feature, yield product or tokenized instrument.
That change can alter the regulatory and risk profile of the program.
The sponsor bank may therefore require advance review of new products, changes to customer flows and modifications to transaction activity. The bank’s assessment can differ from the FinTech’s own legal or compliance analysis because the bank must consider the product within its broader supervisory and risk framework.
Why FinTechs Use Sponsor Banks and BaaS
The principal infrastructure advantage is access.
A new financial technology company does not need to build every component of the traditional banking system itself. Working with an established bank or BaaS provider can provide access to existing infrastructure, operational processes and payment connectivity.
The Federal Reserve, FDIC and OCC have acknowledged that third-party relationships can give banks access to new technologies, delivery channels, products, services and markets. At the same time, regulators note that outsourcing can increase operational, compliance and strategic risks.
For FinTech companies, the model can also change the economics and timeline of product development. Instead of developing an entire banking infrastructure internally, the company can integrate with existing systems and concentrate resources on its customer-facing technology and specialized product.
The resulting speed, however, depends on the complexity of the product, the bank’s risk assessment and the level of regulatory review required.
Costs, Dependencies and Operational Risks
The economic cost of a sponsor-bank or BaaS model extends beyond technology fees.
A FinTech may incur expenses related to integration, compliance, legal work, audits, monitoring, transaction processing and program management. Additional costs can arise when the bank requires changes to systems or controls.
There is also a structural dependency.
If a FinTech relies heavily on one bank or BaaS provider, a change in that relationship can affect its ability to serve customers. Contract termination, changes in risk appetite, regulatory intervention, technology failures or changes in the provider’s business model can create operational disruption.
The banking agencies’ third-party risk guidance specifically calls for consideration of planning, due diligence, contractual arrangements, ongoing monitoring and termination.
Concentration risk
Concentration is another consideration. If multiple products depend on the same provider, an outage or contractual dispute can affect several services simultaneously.
The 2024 joint statement on third-party deposit arrangements identified concentration risk alongside operational, compliance, strategic and liquidity risks. It also highlighted risks involving consumer protection and confusion about deposit insurance.
Customer transparency
The division of responsibilities can also create communication challenges.
Customers may interact primarily with a FinTech’s application even though the underlying deposit or banking product is provided by a bank. Clear contractual terms and disclosures are therefore important to establish the relevant relationships and explain the role of the bank.
This issue has received specific attention from U.S. banking regulators, which have identified customer confusion and misrepresentation of deposit insurance coverage as potential risks in third-party deposit arrangements.
Banks and FinTechs Have Different Risk Perspectives
The sponsor-bank model works because the parties bring different capabilities to the relationship.
| Bank | FinTech |
|---|---|
| Holds the banking charter | Builds the customer-facing technology |
| Provides regulated banking products | Develops the product experience |
| Maintains banking-system connectivity | Integrates APIs and software |
| Operates under banking supervision | May have separate regulatory obligations |
| Oversees relevant third-party activities | Provides technology and operational functions |
| Manages bank-level risk appetite | Develops and markets the financial product |
These roles are not universal. Contracts differ by product, bank, jurisdiction and risk profile.
The important point is that responsibility must be allocated explicitly. The regulatory agencies’ third-party guidance emphasizes understanding the structure of each relationship and tailoring oversight to the risks involved.
What the Regulatory Framework Means for Digital-Asset Businesses
Digital-asset companies face an additional layer of complexity because the banking relationship addresses only part of their infrastructure.
A company may need to analyze several regulatory questions separately:
- Whether its activities constitute money transmission
- Whether it qualifies as a money services business
- Whether a digital asset constitutes a security or commodity
- Whether its activities trigger additional licensing or registration requirements
- How customer funds are held
- How transactions are monitored
- How sanctions and financial-crime risks are managed
- How consumer disclosures are structured
A sponsor bank can provide access to banking infrastructure, but it does not automatically resolve these questions.
The result is a layered model in which banking, payments, digital assets and compliance functions can intersect without becoming the same regulatory activity.
Future Outlook for Sponsor Banking and BaaS
The regulatory direction indicates continued attention to how banks manage relationships with FinTech companies.
In July 2024, the FDIC, Federal Reserve and OCC issued a joint statement concerning bank arrangements with third parties that deliver deposit products and services. The agencies said their supervisory experience had identified safety-and-soundness, compliance and consumer-related concerns and separately requested information on a broad range of bank-FinTech arrangements involving deposit, payment and lending products.
The agencies did not establish new supervisory expectations in that statement. Instead, they reinforced existing risk-management principles and sought additional information about the structure and implications of bank-FinTech relationships.
For digital-asset companies, this means banking access is likely to remain closely connected to the quality of compliance controls, operational resilience, customer transparency and third-party governance.
The infrastructure model may continue to evolve as banks, FinTech companies and regulators address how conventional payment systems interact with blockchain-based financial products.
Conclusion
Sponsor banks and banking-as-a-service platforms provide an important bridge between FinTech products and the regulated banking system. They can give non-bank companies access to accounts, payment networks and other banking infrastructure without requiring the FinTech to operate a bank charter itself.
The arrangement does not eliminate regulatory responsibility. Banks remain accountable for their banking activities and third-party relationships, while FinTech companies may retain separate obligations based on their own products and regulatory status.
For digital-asset businesses, the distinction is particularly important. Blockchain infrastructure can change how assets move and are recorded, but customers and businesses may still depend on conventional banking systems for dollars, payments and settlement. Sponsor banking and BaaS therefore sit at the intersection of two financial infrastructures, with regulatory oversight and operational dependencies shaping how those systems can be connected.
