"Shortening settlement cycles (T+1, T+0) must be matched by rationalised margin frameworks." Discuss with reference to SEBI's recent Early Pay-In reforms.

India now settles trades on T+1 and has offered an optional T+0 cycle since March 2024 [4]. Faster settlement lowers counterparty risk. But if margins are still charged on risks that have already been removed, investors' capital is locked twice. SEBI's October 2026 Early Pay-In (EPI) amendment fixes this mismatch [1].

Why shorter cycles need rationalised margins

• Tighter funding window: under T+1/T+0, investors have less time to arrange funds. Duplicate margin raises trading costs and hurts liquidity.
• Risk already neutralised: once a seller delivers shares to the clearing corporation (CC), delivery-default risk is gone. Existing rules already exempt such clients from upfront margin [3].
• Ongoing review: SEBI's August 2026 consultation paper re-examines settlement and risk management norms together [2].

SEBI's EPI reforms

• Margin credit: the value of shares delivered early now counts towards margin obligations [1].
• Built-in cap: on the trade date, the CC computes the accepted EPI value as the lower of the shares delivered and the shares sold [1].
• Same-day switches: for same-day buy-sell positions, margin is computed after deducting this value. Brokers need not collect extra margin to that extent [1].
• Safe custody: EPI shares are blocked rather than transferred, which curbs misuse of client securities [5].
• Phased rollout: the rules take effect on 22 February 2027, giving four months for system upgrades [1].

Concerns

• System dependence: the relief depends on the CC's trade-date calculation and the depository block working without error [1]. A failure in either leaves the CC with a thinner cushion than it assumes.
• Narrow benefit: delivery-based investors gain. Intraday traders with no shares to deliver gain nothing.
• Readiness gap: CCs, brokers and depositories must all upgrade together. Faster cycles also need real-time checks; SEBI's instant-settlement proposal, for example, allowed only limit orders so that prefunding could be verified [4].

The EPI reform shows that settlement speed and margin design must move together. Margin should be charged only for risk that still remains, not for risk that early delivery has already removed. Going forward, SEBI should stress-test CC systems, audit blocking mechanisms and extend risk-based margining across segments. This would deliver safe, efficient markets that channel household savings into productive investment, in line with SEBI's mandate to protect investors and develop the market.