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RBI Revamps Trading Book Rules for Capital Adequacy

Live · in forceNo withdrawal recorded as of 19 Jun 2026. Reviewed by Vikram Jain; always verify against the official RBI source below.
⏱ ~2 min read
Quick answerRBI aligns capital adequacy guidelines with the new Investment Master Direction, effective April 1, 2024. Trading book definition now follows the HFT classification, and AFS-reserve is part of regulatory capital. Market risk capital requirements get intermediate scalers ahead of the Simplified Standardised Approach.

What changed

RBI has amended the Basel III Capital Regulations and Local Area Bank capital adequacy norms to align with the September 2023 Master Direction on Investment Portfolios. The trading book is now clearly defined under the Held for Trading (HFT) classification, and the AFS-reserve is included in regulatory capital. Market risk capital requirements have been recalibrated with intermediate scalers, though the full Simplified Standardised Approach will be implemented later.

What it means for you

Banks must update their internal capital planning and risk models to reflect the new trading book definition and AFS-reserve treatment. The intermediate scalers for market risk capital will affect capital ratios, so banks should review their strategies. This is a preparatory step before the full Simplified Standardised Approach for market risk is rolled out.

What you must do

Who it affects

All Commercial Banks (excluding Regional Rural Banks), Local Area Banks, Risk management and treasury teams, Capital planning and compliance departments

When do these new trading book rules take effect?

The instructions are applicable from April 1, 2024, for all commercial banks except Regional Rural Banks.

What is the AFS-reserve and how does it affect capital?

The AFS-reserve is a new component introduced under the Investment Master Direction that is now part of regulatory capital. Banks must include it in their capital adequacy calculations.

Will the Simplified Standardised Approach for market risk be implemented immediately?

No, the final guidelines on the Simplified Standardised Approach will be issued later. For now, banks must use intermediate scalers for market risk capital requirements.

Track this rule
⏳ How this rule evolved — History Map →Full RBI rulebook crosswalk →
Official source: RBI/2023-24/128 on rbi.org.in ↗
AI-drafted · 3-model AI consensus fact-check · under the editorial review of Vikram Jain · published · 19 Jun 2026, 06:36 IST
Official RBI source: https://www.rbi.org.in/Scripts/NotificationUser.aspx?Id=12615&Mode=0 — Plain-English summary by BankPulse (bankpulse.ai), reviewed by Vikram Jain. Independent platform, not affiliated with the Reserve Bank of India; never reproduces RBI text verbatim.