Most people think banks work like this: they collect deposits from savers and then lend that money to borrowers.

It sounds reasonable.

But that is not really how modern money creation works.

In practice, when a commercial bank makes a loan, it usually creates a deposit at the same time. That is why people say loans create deposits. It is not a metaphor. It is how modern banking works.

This matters because it changes how we think about money. Money is not just something that gets transferred from one person to another. It is also something that gets created and destroyed through bank balance sheets every day.

The mistake most people make about banks

The simple story most of us grow up with is that banks are middlemen. One person deposits money. The bank holds it. Then the bank lends it to someone else.

That story is not completely useless. Banks do gather funding. They do have to manage liquidity. They do care about deposits.

But if the question is how new money enters the system, that story gets the sequence backwards.

Let’s take a simple example.

Imagine a bank approves you for a home loan of $100,000. What most people picture is the bank taking money that is already sitting somewhere else and passing it to you.

But that is not what happens in the first step.

The bank creates a deposit in your account for $100,000. On the bank’s side, your loan is recorded as an asset, because you now owe the bank repayment over time. The deposit in your account is recorded as a liability, because the bank now owes you that balance on demand. Both entries appear together. The loan and the deposit are created at the same time.

So the key point is simple: the deposit does not come first and make the loan possible. In mechanical terms, the loan creates the deposit.

A simple way to think about it is this: a bank is not just moving chips that are already on the table. When it lends, it is allowed to write a new chip into the game, backed by the borrower’s promise to repay.

That is how new bank money enters circulation.

What happens when a bank lends

Seen from the bank’s side, the picture looks different.

From your side as a customer, you just see money appear in your account. It feels like spending power has been added.

From the bank’s side, two things happened at once. It gained an asset, your promise to repay the loan. It also took on a liability, the deposit it now owes you.