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Capitalism Lab

Understanding Bank Capital Requirements

Infographic explaining the bank capital ratio

A bank keeps its own balance sheet

Every other kind of firm has its assets and liabilities consolidated into the corporate balance sheet. A bank does not — for two reasons. It gives you a clear view of the bank’s own operation, and it keeps the parent corporation’s balance sheet from being distorted by the enormous assets and liabilities that customer deposits and loans produce.

A bank's own balance sheet, showing deposits, loans and net assets

Line Side of the sheet Why
Deposits by customers Liabilities The bank owes that money to its customers, and owes them interest on it.
Loans to customers Assets The bank expects interest and principal back from the borrowers.
Net assets Also called shareholders’ equity: total assets minus total liabilities.

The capital ratio

Watch the net assets figure, because the central bank requires every bank to hold enough capital to absorb unexpected losses and stay solvent through a crisis. That is the bank capital requirement.

At the bottom of a bank’s balance sheet you will find the Bank Capital Ratio and the Required Bank Capital Ratio. The capital ratio is:

equity capital (net assets) ÷ total loans to customers

It must meet the central bank’s requirement.

When the ratio falls short

An alert window appears, showing your bank’s current ratio, the required ratio and the shortfall.

The alert window showing a bank capital ratio below the requirement

Click [Transfer Fund] to open the transfer interface.

The Transfer Fund window for injecting capital into the bank

Set an amount and press [Transfer to Bank]. Once the bank is compliant, right-click anywhere to close the window and carry on.

Three ways to be told about it

If the alert window interrupts you too often, change the notification mode on the bank’s Balance Sheet page.

The three notification mode options on a bank's balance sheet page

1. Must Take Action — the default

The game pops up the alert window whenever the capital ratio is insufficient.

2. Notification Only

No window. Instead the game does two things.

It stops issuing new loans, and shows an icon on the bank’s Overall and Loans pages.

The alert icon on a bank's Overall page indicating lending has stopped

The alert icon on a bank's Loans page indicating lending has stopped

It notifies you through the Event Tracker — the flashing icon at the bottom left of the screen, the same alert you get when a product supply link breaks.

The Event Tracker flashing an alert at the bottom left of the screen

Click the Event Tracker icon to read the message.

The Event Tracker alert message about the bank capital ratio

3. No Notification

Lending stops and nothing tells you.

Not recommended. A capital ratio depleting without your knowledge is exactly the situation you want to avoid.

Strategy guides

  1. Mastering Bank Management: A Comprehensive Guide, by Stylesjl
  2. Bank Setup and Management Video Guide, by YouTuber Lightproton

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