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What is bank capital?

Added: 25 October 2026

Bank capital is the equity buffer between a bank’s assets and liabilities.

Definition, calculation and mechanism

Loan losses can erode this buffer; deposits are liabilities to customers, not equity. Regulatory capital depends on risk weights and eligible instruments. High capital does not mean a bank faces no risk.

Interpretation, examples and limits

Capital adequacy differs from liquidity: an otherwise solvent bank can face a short-term cash shortage. Asset quality and maturity structure matter as well.

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Revision history

25 October 2026 — Article added.