The Economics of Owning a Bank

Most people think owning a bank means buying a building,

hiring tellers, and installing a vault.

While that’s roughly true, the reality of the banking business

begins long before any physical infrastructure is put in place.

If you want to own a bank in the United States,

you first need to pay a visit to the

Federal Deposit Insurance Corporation (FDIC).

This is the government body that guarantees a customer’s money

won’t disappear even if the bank goes under.

The first thing they will tell you is that you need to have

at least $20 million of your own money on hand.

The exact amount depends on the state

and the competitiveness of the local market.

In addition to this starting capital,

you’ll face heavy regulatory and administrative costs:

About $200,000 for lawyers to prepare your application for a banking license.

Roughly $300,000 for consultants and market research.

Your application, called a banking charter,

will be a document somewhere between 800

and 1,500 pages long, describing every aspect of your future bank.

Regulators will study it for 18 to 24 months.

If approved, you receive arguably the most valuable license

in the United States:

the right to take other people’s money for safekeeping

and lend it back out at interest.

Buying an Existing Bank

Instead of starting from scratch, there is a faster

and often smarter route: buying an existing small bank.

Smaller community banks usually trade at 1

to 1.5 times their book value.

So, a bank with $200 to $300 million in assets would

cost around $40 million.

By purchasing an existing bank,

you bypass the two-year waiting line and instantly acquire:

Customers
A banking license
Existing branches
Trained staff

In Europe, the entry point is even cheaper.

You can obtain a specialized banking license for around €5

to €10 million in regulatory capital.

This is why many young European fintech companies

start there before expanding globally.

The Truth About Bank Robberies

While physical bank robberies happen—there were 1,362

in the US in 2023—they have dropped by 80% over the past 20 years.

The average amount taken from an American bank

is only around $5,000, which is far from the millions depicted in movies.

If a robbery does occur, the FDIC does not cover the loss.

The FDIC only covers customer deposits

if the bank fails completely.

Robberies are covered by a mandatory policy called

a banker’s blanket bond (essentially theft insurance).

The insurance company pays out the stolen amount

and decides whether to pursue the thieves.

Tellers are trained to hand over cash with zero resistance

because the cash is insured, but their lives are not.

How Banks Actually Make Money

Whether you start from scratch or buy an existing bank,

you are stuck with mandatory insurance, strict compliance rules,

regulators examining your books, and a stack of fixed costs.

Why would anyone go through this?

The answer lies in how banking works.

When you deposit $1,000, the bank doesn’t put that money

in a vault or keep it all on hand.

In March 2020, the Federal Reserve eliminated

the formal reserve requirement,

which previously forced banks to hold at least 10% of deposits in

a special account. Now, the formal reserve requirement is zero.

When a bank issues a loan, such as a $200,000 mortgage,

it doesn’t pull physical cash out of a drawer.

It simply types $200,000 into the borrower’s account—money

that didn’t exist a second earlier.

As long as the bank stays within capital and regulatory rules,

it has the authority to create deposit money.

The Net Interest Margin

Banks profit immensely off the spread between

what they pay depositors and what they charge borrowers:

The Deposit: A customer keeps $10,000 in a savings account. The bank pays them standard 0.5% interest, or $50 a year.

The Loan: The bank lends that $10,000 to someone else as part of a mortgage at 7% interest. The borrower pays the bank $700 a year.
The Profit: The bank pockets the $650 difference on money it never actually had to come up with.

This gap is called the net interest margin.

For a small American bank, this margin is around 3.5% to 4%.

When multiplied by every account in the bank,

this generates massive revenue.

For a giant like JP Morgan, this gap brings in roughly $100 billion

a year in interest income alone.

The Credit Card Goldmine

The lending side is only half of the business;

the other half is credit cards.

Americans currently owe $1.25 trillion in credit card debt,

with average interest rates sitting around 21%.

Banks are charging customers more than five times

what it costs them to access the same money.

If a customer carries a $5,000 balance

and makes a $100 minimum payment:

At 21% interest, about $90 goes straight to interest.
Only $10 actually pays down the debt.

It will take the customer about 10 years to clear the balance, paying roughly $7,000 in interest on top of the original $5,000.

This works because roughly half of all American cardholders carry

a balance from month to month.

In 2023, major card issuers collected an estimated $25 billion

in additional interest just by raising their margins.

The Risks and Dangers of Banking

Operating a bank comes with immense risks.

A single misstep can erase the bank overnight.

Bank Runs and Modern Panics

On March 8, 2023, Silicon Valley Bank (SVB)—the 16th largest bank

in the US with $210 billion in assets—announced it needed

to raise capital. Within 40 hours, the bank no longer existed.

This modern bank run was entirely digital. SVB’s clients,

who were highly concentrated in the venture-backed

startup industry, pulled out $42 billion in a single day via their phones.

To keep a bank alive, owners must follow strict rules:

Diversify Your Depositor Base: SVB collapsed because 89% of its clients were from the same interconnected industry.

Manage Investments Carefully: SVB bought long-term US government bonds with short-term deposits. When interest rates rose, the bonds lost value, forcing the bank to sell at a massive loss to pay back panicked customers.
Watch Your Lending: In 2023 and 2024, hundreds of regional banks faced bankruptcy after issuing commercial mortgages on office buildings. When remote work emptied these buildings, landlords stopped paying mortgages, leaving banks with loans backed by devalued properties.

The Inside Threat

Hollywood movies depict robbers with guns,

but the real financial threats come from inside the building.

Roughly 60% of all money stolen from American banks over

the past decade was taken by the banks’

own employees—from loan officers writing fake mortgages

to tellers skimming cash.

Running the Numbers: What Do You Actually Make?

If you navigate all the regulations, risks, and economic hurdles,

how much money does owning a bank actually make?

Option 1: A Small Community Bank

You start with $20 million in capital plus $500,000

for charter fees and consultants.

Years 1-3: You operate at a loss, which is normal as you scale deposits and loans.

Year 5: You sit on about $350 million in assets. Using a 4% net interest margin, you generate around $14 million a year in net interest income, plus $2 million from fees.
The Takeaway: After paying for staff, branches, tech, and compliance, you walk away with around $4 million in net profit per year. Most owners build the bank for 10 years, sell it to a regional player, and walk away with four times what they put in.

Option 2: A Regional Bank

If you scale up to a regional bank with $20 to $30 billion

in assets, operating across multiple states

with hundreds of branches:

You pull in $700 million to $1 billion a year in net interest income, plus hundreds of millions from fees and wealth management.
The Takeaway: After operating costs, you look at roughly $400 million in net profit annually.

It is an incredibly lucrative business for an industry that simply

gets to sell people their own money back.