What Is Capital Adequacy?
A measure of whether a bank holds enough capital to cover its risk exposures, meet regulatory minimums, and continue lending during economic stress.
How It Works
Capital adequacy refers to the overall sufficiency of a bank's capital reserves relative to the risks it carries. It is not a single number but rather a framework of requirements established by regulators under the Basel III international standards and enforced in the US by the FDIC, OCC, and Federal Reserve.
Banks must maintain multiple capital ratios simultaneously: the Tier 1 capital ratio, the total capital ratio (which includes Tier 2 subordinated debt), and the leverage ratio (a simpler measure that does not risk-weight assets). In addition, the largest banks must hold a capital conservation buffer of 2.5% above minimums, and systemically important banks face even higher surcharges.
When a bank's capital adequacy falls below regulatory thresholds, it triggers a series of escalating enforcement actions called Prompt Corrective Action. The bank may be prohibited from paying dividends, restricted from growing, required to submit a capital restoration plan, or ultimately placed into receivership by the FDIC. For depositors, a bank with strong capital adequacy is better positioned to weather loan losses, interest rate swings, and economic recessions without disrupting your access to funds. BankHealthData incorporates capital adequacy through the Tier 1 capital component of the Health Score, which carries 35% of the total weight.
Related Terms
Tier 1 Capital Ratio
The ratio of a bank's core equity capital to its total risk-weighted assets, measuring its ability to absorb losses without failing.
Risk-Weighted Assets
A bank's total assets adjusted for credit risk, where safer assets like government bonds receive lower weights and riskier assets like commercial loans receive higher weights.
Prompt Corrective Action
The regulatory framework that requires banking agencies to take increasingly severe enforcement actions as a bank's capital falls below specified thresholds.
Stress Test
A regulatory exercise that simulates severe economic scenarios to determine whether a bank has enough capital to survive a crisis.