BaaS Services Explained: How Businesses Embed Banking into Products
For a long time, if you wanted to offer banking services, you had to literally be a bank. A company that wanted to provide customers with a bank account, a debit card, or payment transfers had two options: navigate years of regulatory filings to obtain a banking license, or find a traditional bank willing to back and white-label its products. For most businesses, neither process is very easy.
Banking-as-a-service (BaaS) has changed this. Through API-based partnerships with licensed banks and infrastructure providers, companies can now integrate payments, accounts, cards, and transfers directly into their products. Reaching this stage no longer requires years of waiting or a banking license. According to research from Market Reports World, the BaaS market was valued at approximately $32.49 billion in 2024 and is projected to reach $86 billion by 2033. This growth reflects how broadly modern businesses are beginning to embed financial services into their systems.
This article explains what BaaS is, how the model works, the types of services it enables, the benefits and challenges businesses should understand, and who is actually using it today. We’ll also take a look at Slash, a business banking platform that partners with Column N.A., Member FDIC to provide financial infrastructure for modern companies.¹,² Through its banking partnerships, Slash offers businesses access to accounts, cards, payments, treasury, and other financial tools through a unified platform.⁶
The standard in finance
Slash goes above with better controls, better rewards, and better support for your business.
What Is Banking-as-a-Service (BaaS)?
Banking-as-a-service (BaaS) refers to a model in which banks and financial technology firms provide banking infrastructure, payments capabilities, lending and deposit products, and account management to third-party businesses. This is done via APIs, which are sets of rules that allow different software applications to communicate and exchange data with one another. By using the BaaS structure, companies outside the traditional banking sector can offer financial services without securing a banking license themselves.
Under the traditional banking model, customers access their bank by visiting a branch, using the bank's own mobile app, or logging into its web portal. With BaaS, the bank goes to the customer through other platforms. Digital banking tools are found within an environment the customer already uses, without the need to open a separate account or download a new app.
BaaS is a component of something called the broader embedded finance ecosystem. “Embedded finance” refers to the integration of financial services into non-financial products and workflows. While embedded finance describes the end result, which is financial services woven into non-finance platforms, BaaS is a higher level term that refers to the infrastructure around it. It’s also important to note that the BaaS model doesn’t replace regulated sponsor banks and compliance frameworks. The API layer and the nonbank platform are built on top of an institutional banking foundation, not instead of one.
How Banking-as-a-Service Works
While the BaaS model often involves some complex tech, the end result is fairly straightforward. Here’s a quick overview:
- A licensed bank provides the regulated infrastructure: The sponsor bank holds the banking license and provides the core financial infrastructure, often including deposit accounts, card networks, payment rails, and regulatory compliance oversight.
- A BaaS provider exposes banking functionality through APIs: Many BaaS providers are middleware platforms that sit between the sponsor bank and the nonbank company, translating banking infrastructure into developer-accessible APIs.
- A nonbank company integrates the APIs into its product: The business (often a SaaS platform, marketplace, fintech, or e-commerce company) uses the BaaS APIs to build financial features into its own product. The customer sees the nonbank company's brand rather than the sponsor bank's.
- End users access financial services through the platform: The customer experience is entirely within the embedding company's product — opening an account, receiving a card, or making a payment looks and feels like a native feature, not a third-party integration.
In the world of BaaS, compliance can be a bit sticky. The financial institution maintains ultimate regulatory accountability, but compliance responsibilities like KYC/AML verification and fraud monitoring may be distributed among the bank, the BaaS middleware provider, and the nonbank platform. If you’re interested in becoming a BaaS company, you should understand precisely which compliance functions you’ll be owning in any presumptive partnerships.
Types of Services Offered Through BaaS
BaaS companies can support a wide range of financial tools depending on the provider and the sponsor bank's capabilities. Some commonly offered features include:
Payments and Money Transfers
Payments are often a key use case within BaaS businesses. They can use APIs to initiate ACH transfers, wire transfers, real-time payments, and international money movements within their own products. For example, a gig economy platform can pay workers instantly after each job, and an e-commerce marketplace can route funds to sellers without a separate payout provider. Since the payment functionality is embedded the customer never has to leave the platform to complete it.
Bank Accounts and Wallets
BaaS companies can offer customers digital bank accounts or stored-value wallets without holding deposits themselves. The account is held at the sponsor bank, insured under the bank's FDIC coverage, and accessible to the customer through the embedding company's product. You’ll often see this in fintechs like consumer apps and earned wage access platforms that want to offer an account-like experience without the regulatory overhead of operating as a bank.
Card Issuing
Card issuing is an important BaaS service in the business-to-business world. Companies can issue debit, prepaid, or corporate charge cards to customers or employees, with the card operating on network rails through the sponsor bank's license. Some companies also manage card activity, configure spend controls, and access transaction data all within their own product. For example, the Slash Visa® Platinum Card is a charge card that connects with Slash’s integrated financial dashboard. Each expense made with the Slash Card is automatically categorized and uploaded to the platform in real time, allowing for clearer cash flow tracking and easier end-of-month reporting.
Lending and Credit Products
Some BaaS providers support the embedding of lending, buy-now-pay-later, invoice financing, or revolving credit products. This tends to be more complex than deposit accounts or payments because credit products carry different regulatory requirements, usually involving credit risk assessments and lending regulations. Additionally, the performance of embedded credit products depends heavily on the embedding company's ability to underwrite and monitor its customer base appropriately.
Benefits of Banking-as-a-Service
Outside of the simple addition of more features, BaaS can bring a number of advantages to growing businesses, such as:
Faster Launch of Financial Products
Building a bank account product, a card program, or a payment system from scratch can take years and costs tens of millions of dollars. The BaaS model can compress this significantly by providing a pre-built, pre-approved financial infrastructure through an API. A company that has integrated a BaaS provider can launch a card program or account product in months rather than years, thanks to the bank's compliance structure already being in place.
All that said, implementation timelines still vary depending on regulatory environments and the speed of banking partner approval processes. BaaS can reduce the scope of what a nonbank company has to build independently, but it doesn’t bypass compliance requirements.
Reduced Infrastructure and Licensing Complexity
Obtaining a banking license usually requires significant capital reserves, ongoing examination by banking regulators, and a compliance infrastructure that's expensive to build and maintain. By using the sponsor bank's license and compliance framework instead, businesses can offer banking services without having to worry about those sorts of obstacles. This is why BaaS has been so valuable for fintech startups and technology companies.
New Revenue Opportunities Through Embedded Finance
Financial services can generate revenue through interchange fees, lending margins, account fees, and interest income. When a nonbank business adopts financial services, it can actually gain access to revenue streams that previously belonged exclusively to banks. For instance, a marketplace can facilitate payments and retain a fee on transactions, and a SaaS platform can earn interchange on corporate card spend. These are examples of embedded finance revenue that BaaS infrastructure makes accessible.
Improved Customer Experience and Retention
The customer experience can become a lot easier when financial services are embedded into a product they already use. A contractor who receives payment instantly through their work platform is less likely to seek an alternative provider than one who needs to use a separate banking app. This sort of integration makes the platform more important to the customer and can end up helping retention.
Support for Treasury Workflows
Businesses using BaaS infrastructure for their own financial operations can gain embedded balance management, payout automation, and real-time transaction visibility within their platform workflows. Managing incoming payments, vendor payouts, employee expense cards, and reconciliation through a BaaS-enabled financial platform is much easier than dealing with them across a bunch of disconnected apps. High-yield treasury accounts and programmable payouts are a couple examples of treasury workflow capabilities that BaaS infrastructure can enable.
Greater Flexibility for Financial Product Development
For tech savvy teams, the API-based model allows companies to build and customize financial products in ways that traditional bank partnerships don't accommodate. New card configurations, account structures, authorization rules, and payment flows can be built and deployed without renegotiating bank contracts or waiting on the bank's product roadmap.
Challenges and Considerations Associated With BaaS
While BaaS simplifies access to financial infrastructure, it also creates some hurdles of its own. Here are some things to look out for:
- Regulatory and compliance responsibilities: By now, you may have noticed a theme: compliance doesn’t get any easier with a new banking model. Between KYC verification, fraud monitoring, transaction reporting, and consumer protection requirements, nonbank companies still have to watch out for regulatory guidelines.
- Dependency on banking partners and providers: The BaaS model depends on the sponsor bank maintaining its charter and the BaaS provider maintaining its infrastructure. In 2024, a major BaaS middleware provider named Synapse collapsed and left tens of thousands of users unable to access their funds for months. A single point of failure in the BaaS chain can lead to these kinds of disasters.
- Integration and operational complexity: Building and maintaining a BaaS integration requires technical resources and ongoing operational attention. As APIs change and banking partners impose new requirements, maintenance work and iterations can build up.
- Security and fraud risks: Embedded financial products can be vulnerable to fraud. Account takeover, synthetic identity fraud, and payment fraud are significant concerns for any platform offering financial services. Ultimately, the embedding company bears significant responsibility for detecting and preventing fraud within its product.
- Geographic and licensing limitations: BaaS frameworks are most often found in the US and UK. International expansion often requires different banking partners, different regulatory compliance, and sometimes country-specific BaaS providers.
The standard in finance
Slash goes above with better controls, better rewards, and better support for your business.
Which Types of Businesses Use BaaS?
BaaS is used across a broad range of business models where embedding financial services creates extra efficiency and revenue opportunity. Here are some examples:
- E-commerce platforms offering digital wallets for stored payment credentials or instant seller payouts without requiring sellers to connect a separate bank account
- SaaS platforms embedding expense cards or payment initiation directly into their workflow software, allowing customers to manage spend within the tools they already use
- Marketplaces facilitating split payments and seller payouts across large vendor networks, often across multiple currencies and geographies
- Fintech companies building digital banking products that offer deposit accounts, cards, and transfers without seeking a direct banking license
In each of these use cases, the financial feature adds meaningful value within the platform's existing customer context. Rather than acting as a standalone core banking product, it’s a financial tool that makes a non-financial product work better.
Manage Banking Operations with Greater Control with Slash
As embedded finance expands, BaaS has become the infrastructure model that allows companies to bring payments, accounts, cards, and financial services into their products without building a bank from scratch. In a similar vein, Slash is a neobank that combines FDIC-insured business checking accounts through Column N.A. with a deep range of financial tools.
While Slash isn’t a BaaS, it offers unlimited virtual and physical corporate cards, a wide range of payment rails, and direct accounting integrations with QuickBooks, Xero, NetSuite, and Sage Intacct. This is all found in a single platform rather than through a fragmented stack that BaaS infrastructure often comes with.
Our platform also comes with a feature that’s rare among BaaS companies: agentic AI. Our AI assistant, Twin, can pull information from your accounts in real time to answer questions about balances, recent transactions, revenue streams, and spending trends. Thanks to its role-based permissions, Twin can only see what you’re authorized to access, meaning compliance risks are minimal.
Slash comes with even more helpful financial features, including:
- Reimbursements: Instead of managing reimbursements across multiple tools, teams can now submit, review, and approve reimbursements directly inside the Slash dashboard. Connect your bank account, upload your receipt, and let Slash capture the details.
- Slash Visa® Platinum Card: The Slash Card allows you to set customizable spending controls and issue unlimited virtual cards for handling team expenses, vendor payments, subscriptions, and more. Users can also earn up to 2% cash back on business purchases.
- Working capital financing: Access short-term financing with flexible 30-, 60-, or 90-day repayment terms to help bridge cash flow gaps.⁵
- Native cryptocurrency support: Hold, send, and receive USD-pegged stablecoins USDC and USDT across eight supported blockchains for faster, lower-cost global payments.⁴
- Accounting & ERP integrations: Sync transaction data with QuickBooks Online, Xero, NetSuite, or Sage Intacct. This can streamline reconciliation and keep reporting scalable.
- Diverse payment methods: Slash supports a wide range of payments, including card spend, global ACH, international wire transfers to over 180 countries via SWIFT, and real-time domestic payments through RTP and FedNow.
Reach out to us today to explore how Slash supports business banking, payments, cards, and financial operations in one place.
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Frequently Asked Questions
Do companies using BaaS need a banking license?
No, companies using Banking-as-a-Service (BaaS) do not need a banking license. Instead, they partner with licensed financial institutions or BaaS providers that handle the regulatory, compliance, and infrastructure requirements on their behalf.
What does the term "open banking" refer to?
Open banking is a financial services model that allows banks to securely share consumer financial data with authorized third-party providers (like fintech apps or other financial institutions) through standardized Application Programming Interfaces (APIs). Overall, it tends to give users greater control over their own data.
What is a fintech?
Fintechs are businesses that use software, mobile applications, and algorithms to deliver and enhance financial services. Short for "financial technology," the term covers any company replacing or improving traditional banking and financial methods. Some fintech startups are BaaS companies, but the two aren't inherently connected.
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Can businesses use BaaS for cross-border payments?
Yes. Businesses can use Banking-as-a-Service (BaaS) platforms to support cross-border payments by integrating services like multi-currency accounts, foreign exchange, international transfers, and local payment rails through APIs. This can help companies send and receive global payments more efficiently without building their own banking infrastructure.
Cross-Border Payments Guide: Choosing the Right Solutions
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What is embedded finance?
Embedded finance is the integration of banking services directly into non-financial apps or platforms, often with the help of APIs. With embedded finance, companies don't need to be actual financial institutions to offer core banking features.
What Are Embedded Financial Technologies? Complete Guide
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