A Guide to Banking-as-a-Service
What BaaS provides, where regulatory responsibility sits, and what to check before building on it.
Fintechs, platforms and marketplaces that want to embed payment or account features into their own product, and need to understand what BaaS provides, where regulatory responsibility sits, and what to check before choosing a provider to build on.
What this guide covers
What Banking-as-a-Service actually is
Every platform eventually reaches the same fork in the road: keep sending users elsewhere to move money, or build money-moving in. Banking-as-a-Service is how most choose the second path without becoming a regulated institution themselves. A licensed partner sits behind the arrangement, holding the permissions, safeguarding the funds and running the infrastructure, while the platform designs the product experience on top of it.
Done well, this is a genuine division of labour rather than a workaround. A marketplace paying out sellers, a payroll platform issuing employee cards, an iGaming operator managing player wallets; none of these businesses particularly wants to become a licensed financial institution. They want the feature. BaaS lets the licensed partner shoulder the regulatory and operational burden, so the platform can stay focused on what it does best.
The question that matters most: who actually holds the licence
Here’s what the marketing pages tend to skip over: not every BaaS arrangement is built the same way underneath. Some providers offering BaaS are themselves relying on a further licensed partner, which quietly adds a layer between the platform and whoever is actually accountable for the funds. It rarely shows up in a sales deck, but it shows up fast the day something goes wrong.
FinXP holds its own EMI licence, Mastercard Principal Membership and direct SEPA participation, and provides BaaS infrastructure directly, with no further intermediary sitting above it. For a platform embedding a financial feature into its product, that difference is the whole ballgame: one regulated counterparty to answer to, not a chain of them, and one onboarding and compliance standard applied consistently rather than inherited second-hand.
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- What sits behind a BaaS offering
- Where BaaS fits by sector
- What to check before choosing a BaaS partner
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| Aspect | Direct-licence BaaS (FinXP) | Layered / resold BaaS |
|---|---|---|
| Regulatory relationship | Platform builds directly on the licence holder | Provider itself relies on a further licensed partner |
| Accountability | One party responsible end to end | Responsibility split across a chain |
| Fund safeguarding | Held and safeguarded directly by the licence holder | Depends on an upstream provider’s own arrangements |
| Stack coverage | Accounts, cards and payment rails under one licence | Often assembled from separate vendors |
| Continuity risk | Set by FinXP’s own risk appetite | Exposed to the upstream partner’s risk appetite too |
What sits behind a BaaS offering
Strip away the branding and a genuine BaaS capability comes down to four things doing real work:
- Account issuance, including multi-currency IBANs a platform can allocate straight to its own customers
- Card issuing, where the platform’s brand sits on a programme built on the licensed partner’s own scheme membership
- Payment rails, including direct SEPA access for euro-denominated flows
- Compliance and onboarding, where the licensed partner owns the KYC and AML obligations, applied with judgement rather than automated rejection alone
Where BaaS fits by sector
- Brokerage platforms: issue client sub-accounts with individual IBANs, so each client gets a dedicated account number while the platform still manages the relationship.
- Digital asset exchanges: get fiat on- and off-ramps without needing a licence of their own.
- Marketplaces: pay out sellers in local currency without stitching together a separate arrangement in every market they touch.
The pattern holds across all three: the platform owns the product; the licensed partner owns the regulatory and infrastructure weight underneath it.
What to check before choosing a BaaS partner
- Does the provider hold its own licence, or is it itself relying on a further partner
- How are client funds safeguarded, and is that segregation demonstrable rather than asserted
- What onboarding standard applies to the platform’s own end customers
- Does the infrastructure cover the full stack; accounts, cards, payment rails; or only a slice of it
Frequently asked questions
Is BaaS the same as using a payments API?
Not quite. An API is the technical access point; BaaS is the regulatory and operational arrangement sitting behind it. A platform can have beautifully documented endpoints sitting atop a genuinely fragile licensing structure — which is exactly why who holds the licence matters more than how clean the interface looks.
Can a platform launch card issuing without holding its own licence?
Yes, provided the BaaS partner holds Principal Membership directly with the relevant card scheme. Where the provider is itself sponsored by another issuer, the platform inherits an extra layer of dependency it may not notice until something goes wrong.
What happens if the licensed partner’s own arrangements change?
This is precisely why direct licensing matters. A platform built on a provider that itself relies on a further partner is exposed to that upstream relationship being repriced, restructured or withdrawn; often with very little warning.
Does using BaaS remove a platform’s own compliance responsibility?
No. The licensed partner carries regulatory responsibility for the funds and infrastructure, but the platform still owns its product, its customer relationships and its own conduct. A clear onboarding standard from the BaaS partner makes that division easier to manage; it doesn’t make it entirely someone else’s problem.
Next step
FinXP provides BaaS infrastructure under its own EMI licence, with direct SEPA access and Mastercard Principal Membership, so partners build on one regulated foundation rather than a chain of intermediaries. Speak to the team about embedding payment infrastructure into your platform.
FinXP is a Malta-licensed Electronic Money Institution with Mastercard Principal Membership and direct CENTROlink SEPA participation; a licensed payments core built for sectors regulated-market institutions won't serve: digital assets, marketplaces, cross-border payroll, and high-volume digital commerce, alongside fintechs, PSPs, and other regulated entities building on FinXP's infrastructure.