What is the Capital Adequacy Ratio Formula?

Currently, the minimum ratio of capital to risk-weighted assets is 8% under Basel II and 10.5% (which includes a 2.5% conservation buffer) under Basel III. High capital adequacy ratios are those that are higher than the minimum requirements under Basel II and Basel III. A related capital adequacy ratio sometimes considered is the tier-1 leverage ratio. The tier-1 leverage ratio is the relationship between a bank’s core capital and its total assets. It is calculated by dividing tier-1 capital by a bank’s average total consolidated assets and certain off-balance sheet exposures. The higher the tier-1 leverage ratio is, the more likely a bank can withstand negative shocks to its balance sheet.

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It is used to protect depositors and promote the stability and efficiency of financial systems around the world. The tier-1 leverage ratio compares a bank’s core capital with its total assets. It is calculated by dividing Tier-1 capital by a bank’s average total consolidated assets and certain off-balance sheet exposures.

What you need to know about capital adequacy ratio

These figures are typically derived from a bank’s balance sheet, ensuring transparency and reliability. It includes instruments like subordinated debt and hybrid securities, which require careful valuation to ensure they meet regulatory standards. Capital Adequacy Ratio (CAR) is a measure of a bank’s financial strength and ability to absorb potential losses. It is calculated by comparing a bank’s capital to its risk-weighted assets, with higher ratios indicating a bank has a stronger financial position. Regulatory standards, such as Basel II and III, set minimum capital adequacy thresholds to protect bank depositors and maintain financial stability in the wider economy.

It is known as capital to risk assets ratio (or simply, risk asset ratio). Tier-1 capital gets used to help absorb losses without the bank having to completely stop operations or trading. This can include future tax benefits, share capital or audited revenue reserves.

Tier-1 Capital

A good Capital Adequacy Ratio (CAR) is generally considered to be above the minimum regulatory requirement set by the central bank of a particular country. For example, suppose bank ABC has $10 million in Tier-1 capital and $5 million in Tier-2 capital. Under Basel III, all banks are required to have a Capital Adequacy Ratio of at least 8%. Since Tier 1 Capital is more important, banks are also required to have a minimum amount of this type of capital. Under Basel III, Tier 1 Capital divided by Risk-Weighted Assets needs to be at least 6%.

Step 6: Compare to Regulatory Requirements

Basel III aims to strengthen the resilience of the banking sector by ensuring that banks hold higher quality capital and maintain adequate liquidity buffers. It also addresses systemic risks by introducing countercyclical capital buffers and capital surcharges for systemically important banks. Global regulatory standards for the Capital Adequacy Ratio (CAR) are designed to create a uniform framework that ensures the stability and resilience of banks worldwide.

Tier-1 capital, or core capital, consists of equity capital, ordinary share capital, intangible assets and audited revenue reserves. Tier-1 capital is used to absorb losses and does not require a bank to cease operations. Tier-1 capital is the capital that is permanently and easily available to cushion losses suffered by a bank without it being required to stop operating. A good example of a bank’s tier one capital is its ordinary share capital.

Basel II was introduced in 2004, and Basel III after the 2008 financial crisis. Both regulations focus on improving the risk management of banks, primarily by setting capital reserve requirements and the ways in which banks should manage risk. Basel II and Basel III, which are international banking regulations, set the minimum ratio of capital to risk-weighted assets at 8%; however, additional requirements can bump it up to 10.5%. Local regulations establish that cash and government bonds have a 0% risk weighting, and residential mortgage loans have a 50% risk weighting. All other types of assets (loans to customers) have a 100% risk weighting.

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Both the capital adequacy ratio and the solvency ratio provide ways to evaluate a company’s debt versus its revenues situation. However, the capital adequacy ratio is usually applied specifically to evaluating banks, while the solvency ratio metric can be used for evaluating any type of company. The calculation of CAR involves dividing a bank’s Tier 1 and Tier 2 capital by its total risk-weighted assets (RWA). Tier 1 capital consists mainly of equity shares issued by the bank while Tier 2 comprises subordinated debt instruments such as bonds or preference shares. The CAR or the CRAR is computed by dividing the capital of the bank with aggregated risk-weighted assets for credit risk, operational risk, and market risk.

  • The CAR is decided by central banks and bank regulators to prevent commercial banks from taking excess leverage and becoming insolvent in the process.
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  • Capital adequacy ratios (CARs) are a measure of the amount of a bank’s core capital expressed as a percentage of its risk-weighted asset.
  • Understanding CAR’s significance helps stakeholders evaluate the resilience of financial systems.
  • However, the capital adequacy ratio is usually applied specifically to evaluating banks, while the solvency ratio metric can be used for evaluating any type of company.

Therefore, this bank has a high capital adequacy ratio and is considered to be safer. As a result, Bank ABC is less likely to become insolvent if unexpected losses occur. A high capital adequacy ratio for banks acts like a cushion to absorb excessive risks and prevent insolvency. Capital Adequacy Ratio (CAR) is the ratio of a bank’s capital to its risk.

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  • This ratio serves as a safeguard against financial crises by ensuring that banks have enough capital to absorb potential losses.
  • Regulators set minimum CAR requirements for banks to ensure they have enough capital to withstand economic shocks and protect depositors’ funds.
  • For example, suppose bank ABC has $10 million in Tier-1 capital and $5 million in Tier-2 capital.

Advanced approaches to calculating RWAs, such as the Internal Ratings-Based (IRB) approach, allow banks to use their internal models to estimate the risk of their assets. This method, while offering greater precision, also requires stringent validation by regulatory authorities to prevent underestimation of risks. The IRB approach underscores the importance of robust risk management practices within banks, as it directly influences the capital adequacy ratio. Risk-weighted assets are calculated by looking at a bank’s loans, evaluating the risk, and then assigning a weight. Asset classes that are safe, such as government debt, have a risk weighting close to 0%. Other assets backed by little or no collateral, such as a debenture, have a higher risk weighting.

The only drawback would be that during economic turmoil like inflation and liquidity traps, CAR cannot measure what is car in banking expected losses, which, in turn, can dent the bank’s capital. High CAR values indicate banks have enough capital to minimise damage caused by risk-bearing assets. Lower values may indicate that banks are suffering from multiple non-performing assets and gradually emerging into insolvency. Central banks and financial regulators set the ratio in such a way that banks can digest risk-bearing elements. Normally, banks have enough reserves to ease out losses, thus preventing them from losing customer deposits.

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