RBI Issues Basel III Market Risk Norms, Banning Instrument Reclassification

Commercial banks operating in India face a strict compliance deadline of April 1, 2027, to implement the Reserve Bank of India's revised framework for minimum capital requirements governing market risk. Issued on Monday following extensive stakeholder consultation, the new regulatory directions formally align domestic banking standards with the updated Basel III framework while introducing specific measures to curb regulatory arbitrage across bank portfolios.

The central bank's updated guidelines explicitly prohibit institutions from reclassifying financial instruments between their trading book and banking book for the purpose of lowering capital requirements. Under the finalized rules, commercial banks are mandated to adopt the simplified standardized approach for computing risk-weighted assets. These risk-weighted assets will be calculated by multiplying the capital requirements derived under the framework by a fixed scalar factor of 12.5.

The market risk capital charge is converted into Risk-Weighted Assets via a scaling factor of 12.5, which along with the ban on reclassifying trading book instruments into banking books, moderately compresses bank Tier-1 CRAR buffers while insulating banks against yield volatility.

The regulatory framework applies universally to all commercial banks across the country, with explicit exemptions granted for small finance banks, payments banks, and local area banks. To assist institutions with the operational transition, intermediate transition scalars have already been in active implementation since April 1, 2024, providing a multi-year lead time prior to full enforcement.