The licensing reality: why most fintechs rent a bank charter

Think of it like a restaurant that does not own the building. The fintech runs the kitchen and the dining room; the bank owns the property and holds the liquor license.

Here is how the money and compliance actually flow:

The money flow

1. A customer deposits money into their Chime account.

2. That money does not sit at Chime. It sits at the partner bank (for Chime, this has been The Bancorp Bank and Stride Bank).

3. The deposit is FDIC insured through the partner bank, not through Chime.

4. When the customer swipes their debit card, the transaction settles through the partner bank's connection to the card networks (Visa or Mastercard).

The revenue flow

The main revenue engine for many consumer fintechs is interchange: a small fee merchants pay every time a card is swiped. The card network sets the rate, the merchant's bank pays it, and it flows to the card-issuing bank. The partner bank and the fintech then split that interchange.

There is a regulatory twist that makes small partner banks attractive. Under the Durbin Amendment (part of the 2010 Dodd-Frank Act), banks with under 10 billion dollars in assets are exempt from caps on debit interchange fees. So they earn meaningfully more per swipe than a giant bank would. This is exactly why fintechs so often partner with small community banks like Sutton Bank or Stride Bank rather than a household name.

The compliance flow

Money is only half the picture. Regulators do not care that a fintech "just makes the app." If customer money is involved, someone must run the compliance machinery.

That machinery includes:

• KYC (Know Your Customer): verifying identity when accounts open.
• AML (Anti-Money Laundering): monitoring transactions for suspicious activity and filing reports.
• BSA (Bank Secrecy Act): the underlying US law requiring these controls.

Legally, the chartered bank is on the hook for all of it. In practice, the fintech usually operates the front-line systems and the bank oversees them. This split is where things get dangerous. If a fintech grows to millions of users but the partner bank's oversight team is small, the compliance gap can become enormous.

Regulators have made this point loudly. The OCC and the Federal Reserve have issued guidance stressing that a bank cannot outsource its responsibility, only the work. You can read the regulators' own framing in the interagency guidance on third-party relationships.

What the dependency costs

Renting a charter is fast and cheap to start. But the fintech pays for it in four ways.

1. Margin

The partner bank takes a cut of interchange and often charges platform fees. The fintech never keeps the full economics of a product it built.

2. Control

The bank sets the rules. It can require the fintech to change features, tighten onboarding, or pause growth. If the bank gets nervous about risk, the fintech's roadmap stalls.

3. Concentration risk

Many fintechs rely on a single partner bank. If that relationship ends, the fintech has to migrate every customer account to a new bank, a painful and risky project. Some larger fintechs now spread across multiple partner banks specifically to reduce this single point of failure.

4. Middleware fragility

Often there is a third player: a BaaS middleware provider that sits between the fintech and the bank, handling the technical plumbing. The 2024 collapse of the middleware firm Synapse is the cautionary tale here. When Synapse failed, a reconciliation breakdown meant many end customers of downstream fintechs could not access their own money for extended periods, because the records of who owned what did not line up cleanly across the parties. It exposed how fragile the chain can be when three companies share responsibility for one customer's balance.

The lesson from Synapse: the more layers between the customer and the actual chartered bank, the more places the chain can break, and the harder it is for a regulator or customer to know who is accountable.

Why not just get a charter?

Some fintechs do. There are three broad paths:

• Rent a charter (BaaS): fastest, cheapest, least control. The default for most startups.
• Buy a bank: acquire a small chartered bank to gain the license directly. LendingClub did this by acquiring Radius Bank. Expensive and slow, but you own the charter.
• Apply for your own charter: SoFi obtained a national bank charter this way (via acquisition and approval). Varo Bank secured a full national bank charter directly, a rare feat for a fintech.

Owning a charter flips the tradeoffs. You capture full economics and control, but you inherit capital requirements, examinations, and direct regulatory liability. You become the restaurant that also owns the building and holds the license. Most fintechs decide the app is their edge and banking is not, so they keep renting.

The strategic read

For anyone evaluating a fintech (as an operator, investor, or partner), the charter question is a diagnostic tool. Ask:

• Who actually holds the deposits and the FDIC insurance?
• How many partner banks does the fintech depend on?
• Is there a middleware layer, and who owns customer records if it fails?
• Does the fintech's growth outpace the partner bank's compliance capacity?

The answers reveal how durable the business really is. A slick app on top of a single fragile bank relationship is a very different asset from a fintech with its own charter or diversified partners.

Key Takeaways

• Most fintechs do not hold a bank charter. They rent one through Banking as a Service, so the deposits and FDIC insurance live at a partner bank like The Bancorp, Stride, or Sutton.
• Interchange is the engine, and small banks are the trick. The Durbin Amendment exempts banks under 10 billion dollars in assets from debit interchange caps, which is why fintechs favor small partner banks.
• Compliance cannot be outsourced, only the work can. The chartered bank stays legally responsible for KYC, AML, and BSA obligations no matter who runs the systems.
• The dependency has real costs: shared margin, loss of control, concentration risk, and middleware fragility (the Synapse collapse is the warning).
• Owning a charter is the alternative, achieved by buying a bank or applying directly, as SoFi and Varo did. It brings full control and full liability.