T+0 Settlement: What the Move from T+1 Means for Listed Company CS Teams

Indian equity markets completed the move to T+1 settlement in January 2023, and SEBI has run T+0 (same-day) settlement pilots from 2024 onwards. For most listed-company CS teams, the change is invisible — until it isn't. T+0 affects the corporate-action calendar, the record-date construction, the ex-date / cum-date determination, and the cadence of insider trading window management. This article is the working primer.

What changed and what's still changing

• T+1 since January 2023. Standard settlement cycle for equity trades — settlement of obligations on the next trading day.
• T+0 pilots from 2024. An optional same-day settlement track operating alongside T+1, initially for a small set of stocks with optional participation, expanding gradually.
• Operational discipline tightened. Pre-funding requirements, faster confirmation cycles, RTA-depository integrations.

The CS-relevant impact areas

Corporate action calendars

Record dates for dividends, splits, bonus, rights, buybacks are interpreted against the prevailing settlement cycle. In a T+1 world, the ex-date is one trading day before the record date. In a T+0 world (where the trade is in the T+0 segment), the determination collapses to the same day. SEBI's interpretive guidance manages the dual-track period; the CS sets the record date with the corporate action timeline accordingly.

Notice periods

Dividends, bonus issues, rights — the notice of record date to the exchanges must be at least 7 working days in advance (under LODR Regulation 42). The construction of the working-day count interacts with the settlement cycle.

Insider trading windows

The trading window closure regime for designated persons works on calendar days. Settlement cycle doesn't directly affect window timing but does affect the practical execution of trades during open windows. CS playbook unchanged; practical communication to designated persons clearer about settlement implications.

Bulk and block deals

For listed entities with promoter-share movements or large institutional transactions, the settlement track in use affects timing and disclosure. The LODR Reg 7A and Reg 30 implications follow.

Rights issue subscription periods

Rights issue rules — application window, abridged letter of offer, allotment date — interact with settlement cycle for the in-segment movement of rights entitlements. The 2022 amendments standardised; T+0 introduces a further layer.

The day-trading and settlement risk angle

From a market-microstructure view, T+0 reduces counterparty risk in the settlement chain and improves capital efficiency for arbitrageurs. The trade-off — pre-funding requirements and tighter operational windows — has been managed gradually. For a CS in a listed-company role, the relevance is indirect: the company doesn't trade its own shares (other than buyback / ESOP allotment which run on different rails), but understanding the market mechanics matters for IR conversations with institutional shareholders.

The five things to check in your current corporate-action template

1. Are record-date / ex-date references hardcoded to T+1 logic, or do they read from a current-settlement-cycle parameter?
2. Does the working-day computation correctly handle the LODR 7-day prior notice requirement?
3. Are dividend payment cycles in line with the SEBI 30-day post-record-date payment rule?
4. For buyback tender offers, does the timeline accommodate the relevant settlement cycle?
5. For rights issues, has the abridged letter of offer been refreshed for current procedural rules?

What's likely next

• Broader rollout of T+0 to more stocks and participants.
• Convergence at some point — T+0 as the default with optional T+1 only for specific cases.
• Continued tightening of operational discipline at intermediaries.

How Delta Filings supports the corporate-action calendar

The Delta Filings corporate actions module computes record-date / ex-date / payment-date based on the prevailing settlement cycle, ships notification drafts in current LODR format, and integrates the dividend / bonus / rights cycle with the broader compliance dashboard. For a listed-company CS coordinating with the RTA and the exchanges, the operational consistency of date computations is the time-saver most cited.

The closing note

T+0 is one of the quieter market-structure reforms that doesn't visibly affect the listed-company CS until it does. The CS who keeps an eye on the settlement cycle parameter in the corporate-action template avoids a category of errors that doesn't have a generation-three Excel macro to catch. Worth fifteen minutes this quarter.