Basel Norms Explained — Basel I, II & III, Capital Adequacy (CRAR) & Risk Framework

The Basel Norms are international banking regulations developed by the Basel Committee on Banking Supervision (BCBS) to strengthen the regulation, supervision, and risk management of banks worldwide. For the JAIIB PPB examination, Basel Norms constitute one of the most complex yet high-scoring topics. Understanding the evolution from Basel I through Basel III, the concept of Capital Adequacy (CRAR), Tier 1 and Tier 2 capital, risk-weighted assets, and India's implementation is crucial for banking professionals. This guide provides a comprehensive breakdown of all three Basel accords with tables, formulas, and exam-focused MCQs.

Evolution of Basel Norms

The Basel Committee on Banking Supervision was established in 1974 by the central bank governors of the G-10 countries and is headquartered in Basel, Switzerland (housed at the Bank for International Settlements — BIS). The Committee does not have legal authority to enforce its recommendations; instead, it formulates standards that member countries adopt through their respective regulatory frameworks. India implemented Basel norms through RBI circulars, and Indian banks are currently operating under the Basel III framework.

Basel I (1988)

Basel I, introduced in 1988, was the first international standard for bank capital adequacy. Its primary focus was credit risk — the risk that a borrower may default on a loan. Basel I established the minimum capital requirement of 8% of Risk-Weighted Assets (RWA). It introduced a simple risk-weighting system where assets were classified into broad categories (0%, 20%, 50%, 100%) based on the counterparty type. For example, government bonds received 0% risk weight, claims on banks received 20%, residential mortgages received 50%, and corporate loans received 100%.

While Basel I was groundbreaking as the first harmonized capital standard, it had significant limitations: it did not account for operational risk or market risk; the risk weights were too broad and did not differentiate between high-quality and low-quality corporate borrowers; and it incentivized regulatory arbitrage where banks restructured exposures to minimize capital requirements without actually reducing risk.

Basel II (2004) — Three Pillars

Basel II was released in 2004 and represented a more sophisticated approach to bank regulation. It introduced the famous "Three Pillars" framework:

Basel II's key improvement was the inclusion of operational risk (risk of loss from inadequate internal processes, people, systems, or external events) and more granular risk weights for credit risk. However, the 2008 Global Financial Crisis exposed critical weaknesses — Basel II did not adequately address liquidity risk, leverage, and the procyclicality of capital requirements.

Basel III (2010 onwards) — Post-Crisis Reforms

Basel III was developed in response to the 2008 financial crisis and introduced in phases from 2013 onwards. It retained the three-pillar structure of Basel II but significantly enhanced capital quality, introduced liquidity standards, and added a leverage ratio. Key additions under Basel III include:

Capital Adequacy — CRAR (9% in India)

Capital to Risk-Weighted Assets Ratio (CRAR), also known as Capital Adequacy Ratio (CAR), is the core metric of the Basel framework. While the international Basel standard requires 8%, India's RBI mandates a higher minimum of 9% CRAR for all scheduled commercial banks. The formula is:

Capital Structure — Tier 1 & Tier 2

With the Capital Conservation Buffer (CCB) of 2.5%, the effective minimum CRAR for Indian banks becomes 11.5% (9% minimum + 2.5% CCB). Systemically Important Banks (D-SIBs) like SBI, ICICI Bank, and HDFC Bank are required to maintain an additional capital surcharge of 0.2% to 0.8% depending on their systemic importance score.

Risk Weights — Common Examples

Under the Standardized Approach for credit risk, different asset classes carry different risk weights:

India's Implementation of Basel III

India adopted Basel III norms from April 1, 2013, with a phased implementation schedule. The RBI set a higher minimum CRAR of 9% (versus the global 8%) as an additional buffer for the Indian banking system. The full implementation of Basel III capital requirements in India was completed by March 2019, while the LCR requirement became fully effective from January 2019 (minimum 100%). The NSFR requirement of 100% has also been implemented. Indian banks, particularly public sector banks, have faced challenges in meeting Basel III norms due to high NPA levels, requiring government capital infusions through recapitalization bonds.

Key Points for JAIIB Exam

Sample MCQs for JAIIB PPB