T+1 settlement

Also called: Rolling settlement, T+0 settlement · Topic: Financial Markets, Instruments, Insurance and Pensions · NCERT: Beyond NCERT

Meaning

T+1 settlement is a rolling settlement cycle. In it, shares and money change hands one business day after the trade day. Here "T" is the trade day, and "+1" is one working day later.

It matters because a shorter cycle leaves less time in which a buyer or seller can fail to pay or deliver. Investors also get their money or shares back faster. India completed the move to T+1 on 27 January 2023.

Explanation

How a trade is settled

• Settlement cycle is the time between a trade and the final exchange of shares and money.
• Two steps happen after you trade:
• Clearing: the clearing corporation works out who owes what to whom. Examples are NSE Clearing Ltd for NSE and ICCL (Indian Clearing Corporation Ltd) for BSE.

• Settlement: the shares and money actually move.

• Shares move by book entry, not on paper.

• A depository (an institution that holds shares electronically, such as NSDL or CDSL) changes its computer records.

• The seller's demat account (an account that holds shares in electronic form) is debited. The buyer's demat account is credited.

• Novation protects both sides.

• The clearing corporation becomes the buyer to every seller and the seller to every buyer.
• So if one side defaults, the other side still gets paid.
• The Settlement Guarantee Fund (a pool of money that backs the clearing corporation) covers any shortfall.

Rolling settlement and its versions

• Rolling settlement means each day's trades are settled separately, a fixed number of days later.
• It replaced the old method, where a whole week's trades were settled together.

• The number after "T" tells you how many business days the cycle takes: T+5, T+2, T+1 or T+0.

• T+1 = settlement on the next business day. This is now the standard cycle in India.

• T+0 (beta) = settlement on the same day as the trade.
• It is optional.

• It runs alongside T+1 and does not replace it [1].

• Worked example (business days only):

• You sell shares on Monday. Under T+1, the money reaches you and the shares reach the buyer on Tuesday.
• You sell on Friday. Saturday and Sunday are not business days, so settlement happens on Monday.
• Under the older T+2, the Monday trade would have settled on Wednesday. Money would be stuck for one extra day.
• Under optional T+0, the Monday trade settles on Monday itself.

Why a shorter cycle helps, and what it costs

• Lower risk:
• The cycle is shorter, so there is less time in which prices can move sharply.
• That means less time for a party to default.

• So the clearing corporation carries less counterparty risk (the risk that the other party does not honour the deal).

• Faster money:

• Investors can use their sale money sooner.

• Money circulates faster in the market, which improves liquidity (how easily shares can be turned into cash).

• The cost is less time to prepare:

• Brokers, custodians (banks that hold securities for large investors) and foreign investors have less time to arrange funds and shares.
• This is hardest for foreign investors working in other time zones.
• That is why each shift was phased in, and why T+0 is optional.

In India

• Regulator: SEBI sets the settlement cycle through its circulars. The exchanges (NSE, BSE) and their clearing corporations carry it out. The depositories (NSDL 1996, CDSL 1999) run under the Depositories Act, 1996.
• How India's settlement cycle got shorter:

Period	Cycle
Before 2001	Weekly account settlement, with badla
2001	T+5 rolling settlement
2003	T+2
September 2021	SEBI allows T+1 on an optional basis [4]
2022 to 27 January 2023	T+1 phased in stock by stock; complete on 27 January 2023
21 March 2024	Optional T+0 (beta) notified [1]
December 2024	Scope of optional T+0 widened [2][3]

• Why rolling settlement came in:
• Under badla, an investor could push payment or delivery forward to the next week. This encouraged heavy speculation.

• After the Ketan Parekh scam (2001), badla ended and rolling settlement started in 2001.

• T+1: India was among the first major markets to move fully to T+1.

• T+0 (beta):
• It was brought in by the SEBI circular of 21 March 2024 [1].
• It started with 25 scrips and a limited number of brokers [1].

• NSE and BSE made it available to non-custodian clients from 28 March 2024 [1].

• Wider T+0:

• The SEBI circular of 10 December 2024 extended T+0 to up to the top 500 scrips by market capitalisation [2].
• Stocks were added 100 a month, starting from the bottom 100 of that list [3].
• In October 2025, SEBI gave Qualified Stock Brokers (large brokers) more time to put T+0 systems in place [7].

Don't confuse with

• T+0 settlement: same-day settlement. In India it is optional and runs alongside T+1 [1]. T+1 is still the main, standard cycle.
• Rolling settlement: the general method of settling each day's trades separately after a fixed gap. T+1 is one type of rolling settlement. T+5 (2001) and T+2 (2003) were earlier types.
• Badla / weekly account settlement: a whole week's trades were settled together, and trades could be carried forward to the next week. Rolling settlement ended this in 2001.
• Clearing vs settlement: clearing means working out who owes what. Settlement means actually moving the shares and money. The settlement cycle measures how long it takes to reach final settlement.

Prelims Hooks

• T+1 = shares and money change hands one business day after the trade day. India completed the shift on 27 January 2023.
• SEBI first allowed T+1 on an optional basis in September 2021 [4]. It was then phased in stock by stock.
• Optional T+0 (beta) was notified on 21 March 2024 for 25 scrips [1]. It was widened in December 2024 to up to the top 500 scrips by market cap [2].
• Trap: T+0 does not replace T+1. It runs alongside it on an optional basis [1].
• Sequence: weekly badla → T+5 (2001) → T+2 (2003) → T+1 (2023) → optional T+0 (2024).
• Novation by the clearing corporation, backed by the Settlement Guarantee Fund, removes counterparty risk during the settlement cycle.

Mains Points

• Speed versus readiness:
• T+1 and T+0 cut the time in which a default can happen, and they free investors' money faster.
• But custodians and foreign investors in other time zones get less time to arrange funds and shares.

• That is why SEBI brought in T+1 in phases and kept T+0 optional. It also extended the T+0 deadline for Qualified Stock Brokers in October 2025 [7].

• Reform after crisis:

• The badla system fed speculation during the 1990s scams.
• After the 2001 Ketan Parekh scam, rolling settlement replaced it.

• The shorter cycles since then show that market plumbing (the back-end systems that move shares and money) shapes investor safety and market integrity.

• Supports retail participation:

• Demat accounts grew from 7.38 crore (October 2021) to more than 21.6 crore (FY26) [5][6].
• For this many investors, faster and safer settlement builds trust and deepens capital markets.
• It is safe only if the technology works for all brokers and gives everyone fair and equal access.

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