This article summarises a SEBI circular, in our own words. The source is credited under "Sources & credits" below. Rules change; always check the latest circulars and your broker's process. Nothing here is investment advice.
On 22 October 2026, SEBI issued a circular on margin waivers for subsequent buy or sell transactions placed after an early pay-in (EPI) in the cash segment. It is a narrow, mechanical change, but it directly affects how much margin capital a cash-segment strategy needs to hold.
How the waiver works
- Scope. The waiver applies only to the cash segment. Derivatives are not covered by this circular.
- Trigger. A client must have a net sell obligation in a security, and the clearing corporation must have accepted an early pay-in of those shares. A depository debit on its own is not enough, and an EPI instruction that is still pending or has been rejected does not qualify.
- Mechanism. Once the EPI is accepted, clearing corporations stop collecting margin, in real time, on the client's later buy or sell positions in that security, up to the accepted EPI amount.
- Cap. The benefit is capped at the lower of the EPI value and the value of the securities sold.
- Reversal. If the original sale is squared off, the EPI benefit is withdrawn and margin on the position is recalculated.
- Effective date. The circular takes effect on 22 February 2027, four months after issuance.
Why it matters for a systematic desk
Margin held against cash-segment positions is capital that is not doing anything else. A real-time waiver tied to an accepted early pay-in reduces that drag for strategies that routinely sell existing holdings and re-enter related positions the same day, such as basket rebalancing or pairs-style cash trades.
The conditions matter more than the headline. A system that wants to use this waiver needs to track EPI acceptance status, not just the depository debit, since only an accepted EPI counts. It also needs to handle the reversal case: if a position gets squared off, the margin benefit disappears and the system has to be ready for the recalculated requirement rather than assuming the waiver holds for the life of the trade.
What to check before relying on it
This is a clearing-corporation-level mechanism, not a broker promise, so the practical details, how quickly EPI acceptance is confirmed back to the trading member, and how it is surfaced in margin reports, will depend on your broker and clearing member's implementation. Confirm the exact workflow with your broker well before the February 2027 effective date.
Sources & credits
- Securities and Exchange Board of India (SEBI), "Margin Waiver on Subsequent Buy/Sell Transactions Post Early Pay-In (EPI) in Cash Segment", circular HO/(320)2026-MRD-POD2/I/24141/2026, 22 October 2026. Read the circular (PDF)
The rules are SEBI's. This post summarises them in our own words and adds our own commentary.