In 2007-08, banks worldwide collapsed under bad loans and thin capital cushions. Basel III is the global rulebook written to stop that from happening again. It sets stricter capital, liquidity, and leverage standards for every bank. India’s RBI has phased it in since 2013, with a final push due by April 2027.
🕰️ Timeline: Basel I to Basel III
1. Basel I (1988).
- Origin The Basel Committee on Banking Supervision (BCBS) was formed in 1974, after two banks failed and disrupted global currency markets.
- Rule Basel I, issued in 1988, set the first global capital rule. Banks had to hold capital worth at least 8% of their risk-weighted assets.
- Gap It measured only credit risk, using broad, simple risk categories. It ignored market risk and operational risk almost entirely.
2. Basel II (2004).
- Structure Basel II introduced the three-pillar structure still used today: minimum capital requirements, supervisory review, and market discipline through disclosure.
- Refinement It let banks use more risk-sensitive, internal-ratings-based models to calculate capital charges, instead of Basel I’s flat categories.
- Limit Its risk models still badly under-priced systemic risk. This became clear when the 2007-08 global financial crisis began.
3. Basel III (2010 onward).
- Trigger The BCBS published the first Basel III text in December 2010, directly responding to the 2008 financial crisis.
- Response Basel III raised the quality and quantity of required capital. It also added new liquidity and leverage rules that Basel I and II never had.
- Global rollout The BCBS set a phase-in schedule running from 2013 to full implementation by 2019, giving banks worldwide time to build up capital.
4. RBI’s Rollout in India (2013-2027).
- 2013 RBI began implementing Basel III capital regulations in India from 1 January 2013.
- 2019 RBI delayed the capital conservation buffer twice. Full Basel III capital norms took effect for Indian banks only by 31 March 2019.
- 2027 RBI’s finalised standardised approach for credit and operational risk, the last major piece of Basel III, takes effect from 1 April 2027.
✊ Must Know
1. What Basel III Is.
- Definition Basel III is a global regulatory framework for banks. The Basel Committee on Banking Supervision, hosted by the BIS in Basel, Switzerland, wrote it.
- Origin It followed the 2008 global financial crisis, when undercapitalised banks failed and needed government bailouts worldwide.
- Reach It is not a treaty or a binding law by itself. National regulators, like India’s RBI, adopt it into their own domestic rules.
2. Its Stated Purpose (UPSC 2015 Answer).
- Purpose Basel III aims to improve the banking sector’s ability to absorb shocks from financial and economic stress, from any source.
- Purpose It also aims to improve risk management and governance at banks, and to strengthen banks’ transparency and public disclosures.
- Not this It has nothing to do with biodiversity conservation, greenhouse-gas emission cuts, or chlorofluorocarbon replacement technology.
3. The Three Pillars.
- Capital Banks must hold more capital, and higher-quality capital, than under Basel II. Common Equity Tier 1 (CET1) capital is the strictest, highest-quality layer.
- Liquidity Two new ratios ensure banks can survive a funding crunch: the Liquidity Coverage Ratio (LCR) and the Net Stable Funding Ratio (NSFR).
- Leverage A simple, non-risk-based leverage ratio caps how much a bank can borrow against its capital, as a backstop to the capital rules.
📘 Good to Know
1. The Capital Ratios, in Detail.
- Global floor Under global Basel III, minimum Common Equity Tier 1 capital is 4.5% of risk-weighted assets, and minimum Tier 1 capital is 6%.
- Buffer A 2.5% Capital Conservation Buffer (CCB), held in CET1 capital, sits on top of these minimums. It pushes the effective global minimum total capital to 10.5%.
- Extra layer A Countercyclical Capital Buffer, ranging from 0% to 2.5%, can be activated by regulators when credit growth looks excessive.
2. India’s Own, Stricter Numbers.
- RBI norms RBI requires Indian banks to hold minimum CET1 capital of 5.5% and minimum Tier 1 capital of 7%, both above the global floor.
- Total capital Minimum total capital (Tier 1 plus Tier 2) must be at least 9% of risk-weighted assets on an ongoing basis.
- Effective floor With the 2.5% CCB added, the effective minimum capital-to-risk-weighted-assets ratio (CRAR) for Indian banks is 11.5%, effective since October 2021.
3. Liquidity, Leverage, and Systemic Banks.
- LCR The Liquidity Coverage Ratio requires banks to hold enough high-quality liquid assets to survive a 30-day acute stress scenario.
- NSFR The Net Stable Funding Ratio requires banks to fund their assets with stable sources over a one-year horizon, reducing reliance on short-term wholesale funding.
- D-SIBs India names Domestic Systemically Important Banks, currently SBI, HDFC Bank, and ICICI Bank. They must hold extra capital buffers on top of the standard norms.
Who decides the Capital Adequacy Ratio?
- Definition CAR is the share of a bank’s own funds it must hold against its risk-weighted assets. It cushions losses if borrowers stop repaying loans.
- Regulator-set The RBI, not each bank, sets the minimum CAR. Under Basel III, India’s effective minimum is 11.5% of risk-weighted assets, including the capital conservation buffer.
- PYQ UPSC CSP 2018, GS Paper I, Q16.
Test Yourself
🎓 Great to Know
1. The “Basel III Endgame” in India.
- Final piece The last major unimplemented piece of Basel III worldwide is a revised, more risk-sensitive standardised approach to credit and operational risk, nicknamed the “Basel III endgame.”
- RBI move RBI issued its Commercial Banks – Capital Charge for Credit Risk – Standardised Approach Directions, 2026 on 27 April 2026, replacing the older framework.
- Effect These directions take effect from 1 April 2027, and make bank capital charges more sensitive to a borrower’s actual external credit rating.
2. Common Criticisms.
- Complexity Critics argue Basel III’s rules are too complex, and that smaller banks bear a disproportionate compliance cost relative to larger ones.
- Procyclicality Some economists argue tighter capital rules can restrict lending exactly when an economy needs credit the most, during a downturn.
- Trade-off Higher capital requirements are safer for the system, but can also raise banks’ funding costs, potentially raising loan rates for borrowers.
📰 Current Affairs
1. 27 April 2026 — RBI Finalises Basel III Standardised Approach for Credit Risk.
- Policy RBI notified the Commercial Banks – Capital Charge for Credit Risk – Standardised Approach Directions, 2026, on 27 April 2026. This operationalises the finalised Basel III reforms in India. (Source: KPMG India)
- So what? The directions take effect from 1 April 2027 and apply to scheduled commercial banks, excluding small finance banks, payment banks, and regional rural banks. This is India’s implementation of the internationally agreed “Basel III endgame.” (Source: RBI notification, via TaxGuru)
📝 Previous Year Questions
1. UPSC CSP 2018, GS Paper I, Q16.
Consider the following statements:
- 1. Capital Adequacy Ratio (CAR) is the amount that banks have to maintain in the form of their own funds to offset any loss that banks incur if the account-holders fail to repay dues.
- 2. CAR is decided by each individual bank.
Which of the statements given above is/are correct?
- (a) 1 only
- (b) 2 only
- (c) Both 1 and 2
- (d) Neither 1 nor 2
Answer: (a) Statement 1 is correct. CAR is a bank’s own funds held against its risk-weighted assets, to absorb losses. Statement 2 is wrong. The RBI, not each bank, sets the minimum CAR, currently 11.5% including the Basel III capital conservation buffer.
2. UPSC CSP 2015, GS Paper I, Q65.
‘Basel III Accord’ or simply ‘Basel III’, often seen in the news, seeks to:
- (a) develop national strategies for the conservation and sustainable use of biological diversity
- (b) improve banking sector's ability to deal with financial and economic stress and improve risk management
- (c) reduce the greenhouse gas emissions but places a heavier burden on developed countries
- (d) transfer technology from developed countries to poor countries to enable them to replace the use of chlorofluorocarbons in refrigeration with harmless chemicals
Answer: (b) Basel III’s own stated purpose, per the BIS, is to strengthen banks’ capacity to absorb financial and economic shocks and to improve risk management and governance.
Basel III did not end banking crises everywhere. But it left banks holding far more, and far better-quality, capital than they held in 2008. India’s own norms sit above the global floor, and its last major reform piece takes effect in April 2027.
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