Regulation STT securities transaction tax F&O taxation options taxation futures taxation Union Budget 2024 CBDT

STT hike on F&O (October 2024)

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The STT hike on F&O that took effect on 1 October 2024 raised the Securities Transaction Tax on options selling from 0.0625 per cent of premium to 0.1 per cent and on futures selling from 0.0125 per cent of traded value to 0.02 per cent. The hike, announced by Finance Minister Nirmala Sitharaman in the Union Budget on 23 July 2024 and operationalised through a Central Board of Direct Taxes (CBDT) notification, raised the per-trade fixed-cost component of every F&O transaction by approximately 60 per cent for options and 60 per cent for futures. The change was the first STT rate hike on F&O since the introduction of options STT in 2008 and reversed the long-running trend of progressively lower transaction taxes on derivatives.

For Zerodha and other Indian retail brokers, the STT hike interacted with the parallel SEBI October 2024 F&O framework to materially raise the all-in cost of retail F&O trading from 1 October 2024 onwards. The STT change alone added approximately Rs 1.5 per lot per side to a typical Nifty 50 options trade and proportionally more on higher-premium contracts. Combined with the lot-size revision and the weekly expiry contraction , the cumulative effect was the largest single-quarter rise in retail F&O transaction cost in over a decade.

This article covers the policy background and Union Budget 2024 announcement, the specific STT rate changes, the calculation impact on representative F&O trades, the interaction with parallel reforms, and the operational consequences for retail traders and the Indian F&O ecosystem.

Policy background

STT history on F&O

The Securities Transaction Tax was introduced in October 2004 as a transaction-level tax on listed-securities transactions, replacing the long-term capital gains tax for equity. F&O contracts were brought under STT through subsequent budget changes:

  • 2004-2008: STT applied to equity cash trades and to F&O contracts on the sell side at relatively higher rates than the later regime.
  • 2008: STT on options selling was introduced at 0.017 per cent of premium for sellers; STT on futures selling was set at 0.017 per cent of traded value.
  • 2013: STT rates on F&O were rationalised. Options selling STT moved to 0.05 per cent on premium and futures selling STT to 0.01 per cent on traded value.
  • 2016-2017: Further rationalisation set the options selling STT at 0.05 per cent on premium and futures selling STT at 0.01 per cent on traded value.
  • 2018: A small upward revision brought options selling STT to 0.05 per cent on premium and a residual sell-side rate change on futures.
  • June 2023: STT on options selling was raised modestly from 0.05 per cent to 0.0625 per cent and on futures selling from 0.01 per cent to 0.0125 per cent.

From October 2004 to October 2024, the directional trend was modest downward rationalisation interspersed with the small 2023 hike. The October 2024 change reversed this trend with a substantially larger increase.

Union Budget 2024 announcement

The Union Budget presented on 23 July 2024 by Finance Minister Nirmala Sitharaman announced the new STT rates on F&O along with several other capital-markets tax changes:

  • The STT on options selling rose from 0.0625 per cent to 0.1 per cent of premium.
  • The STT on futures selling rose from 0.0125 per cent to 0.02 per cent of traded value.
  • Long-term capital gains tax on equity rose from 10 per cent to 12.5 per cent (effective from budget date).
  • Short-term capital gains tax on equity rose from 15 per cent to 20 per cent.
  • The Securities Transaction Tax framework was retained as the transaction-level tax for listed securities.

The budget speech identified the STT hike on F&O as motivated by the need to address the rise in retail F&O speculation and to recover a portion of the public revenue that the rising F&O turnover was generating in clearing and exchange fees but not in tax. The motivation aligned closely with the SEBI F&O entry barrier framework announced separately by the regulator on 1 October 2024.

Effective date

The STT rate changes took effect on 1 October 2024 through a CBDT notification. The choice of 1 October aligned with the SEBI framework effective date for related measures and produced a single cutover for the combined regulatory and tax tightening.

Rate changes in detail

Options selling: 0.0625 per cent to 0.1 per cent on premium

The STT on options selling applies to the option seller (the writer) and is computed on the option premium received. The rate change:

  • Before 1 October 2024: 0.0625 per cent of premium.
  • From 1 October 2024: 0.1 per cent of premium.

The change represents an increase of 0.0375 percentage points, or approximately 60 per cent of the pre-hike rate. For an option writer collecting Rs 100 of premium per lot, the STT moved from Rs 6.25 per lakh to Rs 10 per lakh of premium collected, adding Rs 0.038 per lot in absolute terms (small in nominal terms but significant relative to the small premium decay margins on which retail option writing relies).

Futures selling: 0.0125 per cent to 0.02 per cent on traded value

The STT on futures selling applies to the seller of a futures contract and is computed on the traded value (lot size multiplied by futures price). The rate change:

  • Before 1 October 2024: 0.0125 per cent of traded value.
  • From 1 October 2024: 0.02 per cent of traded value.

The change represents an increase of 0.0075 percentage points, or approximately 60 per cent of the pre-hike rate. For a Nifty 50 futures lot of 75 traded at an index level of 25,000 (notional value Rs 18.75 lakh), the STT moved from Rs 234 per lot to Rs 375 per lot on the sell side, adding Rs 141 per lot per sell-side transaction.

Buy-side STT unchanged on F&O

The STT framework on F&O continues to apply only on the sell side; buying futures or options does not attract STT. The October 2024 hike retained this sell-side-only structure and did not introduce buyer-side STT on derivatives.

For securities transaction tax on equity cash and other transaction types, the framework operates differently (both buyer and seller pay STT on equity delivery; both buyer and seller pay STT on intraday at lower rates). The October 2024 hike did not affect equity cash STT rates.

Calculation impact

Representative options trade

A retail option writer selling a Nifty 50 weekly straddle with a combined premium of Rs 250 (per lot of 75 contracts after the lot-size revision):

  • Notional premium: Rs 250 × 75 = Rs 18,750.
  • STT pre-October 2024: 0.0625 per cent × Rs 18,750 = Rs 11.72 per lot per sell side.
  • STT post-October 2024: 0.1 per cent × Rs 18,750 = Rs 18.75 per lot per sell side.
  • Increment per lot per sell side: Rs 7.03.
  • Increment per round-trip lot (sell, then buy back to close): Rs 7.03 plus zero on buy side = Rs 7.03 total round-trip increment.

For a retail option writer running 100 lots per week across multiple expiries, the absolute weekly STT increment is Rs 703. Over a year, this approaches Rs 36,500 in additional STT costs.

Representative futures trade

A retail futures trader selling and rebuying one Nifty 50 futures lot per day at Rs 18.75 lakh notional:

  • STT pre-October 2024: 0.0125 per cent × Rs 18,75,000 = Rs 234.38 per lot per sell side.
  • STT post-October 2024: 0.02 per cent × Rs 18,75,000 = Rs 375 per lot per sell side.
  • Increment per lot per sell side: Rs 140.62.

For a daily futures trader, the daily STT increment is Rs 140.62. Across 250 trading days in a year, this approaches Rs 35,000 in additional STT costs per single Nifty 50 futures lot.

Cumulative interaction with parallel measures

The STT hike combined with the parallel lot-size revision (which roughly tripled the per-lot capital requirement) and the true-to-label charges framework (which removed broker volume rebates on transaction charges) produced a meaningful step-change in retail F&O cost:

  • Per-trade STT alone rose approximately 60 per cent on each measure.
  • Per-trade capital requirement rose 2 to 3 times (lot-size effect).
  • Per-trade exchange and clearing charges adjusted upward as the true-to-label framework eliminated volume rebates.
  • Cumulative all-in cost per lot of Nifty 50 weekly options writing rose by approximately 100 to 150 per cent depending on the strategy and broker.

For a representative retail option-writing strategy generating Rs 10,000 of theta per month under the old regime, the post-October 2024 framework reduced the net profit (after costs) by approximately 30 to 50 per cent based on broker-published cost calculators.

Interaction with parallel reforms

Cumulative tightening of retail F&O

The STT hike was one component of a multi-axis tightening of retail derivatives that took effect on 1 October 2024:

  • STT hike: this measure, raising sell-side transaction tax on F&O.
  • SEBI F&O entry barrier framework : six-measure SEBI framework on contract sizes, weekly expiries, margins, and upfront premium collection, also effective 1 October 2024 with phased operative dates through April 2025.
  • SEBI true-to-label charges : ending volume-rebate-based broker discounts on transaction charges.
  • Weekly expiry contraction : effective 20 November 2024 as part of the SEBI framework.

The four reforms together produced the largest combined tightening of Indian retail F&O regulation since the introduction of options on the NSE in 2001. Aggregate retail F&O turnover dropped materially after the October-November 2024 cutover.

Continuity of margin framework

The existing margin frameworks remained in force. The peak margin penalty regime, the September 2020 margin pledge framework , and the SPAN margin and exposure margin structures all continued without alteration. The STT hike operated as an additional layer above these unchanged margin frameworks.

Operational consequences

Higher per-trade cost

The most direct consequence is the higher per-trade cost on every F&O sell-side leg. For systematic retail option writers, the change reduced post-cost profitability per trade. For ultra-high-frequency strategies (whether retail algos or quantitative shops), the change raised the breakeven per-trade alpha required to remain profitable.

Broker cost-calculator updates

Zerodha and other major brokers updated their per-trade cost calculators on 1 October 2024 to reflect the new STT rates. The calculator output (showing total transaction cost including STT, exchange charges, GST, SEBI fees, and brokerage) became the primary tool retail traders used to assess the changed economics.

The Zerodha brokerage calculator at zerodha.com/brokerage-calculator was updated within hours of the cutover with the new STT rates pre-populated.

Strategy adaptation

Three retail strategy adaptations emerged after the October 2024 cutover:

  • Strategy consolidation: retail traders running multiple parallel low-margin strategies consolidated into fewer higher-conviction strategies where the higher per-trade cost was a smaller proportion of expected return.
  • Migration to longer tenors: short-dated weekly option strategies, where per-trade costs are a larger proportion of expected theta, became less attractive relative to monthly contracts where per-trade costs amortise over a longer holding period.
  • Exit from F&O: a portion of retail capital exited F&O entirely as the post-hike economics were no longer attractive for marginal strategies.

The behavioural responses overlapped with the responses to the parallel SEBI framework and the weekly expiry contraction, making attribution to STT alone difficult.

Revenue impact for government

The Finance Ministry’s stated revenue expectation from the F&O STT hike was approximately Rs 6,000 to Rs 8,000 crore annually based on prevailing F&O turnover. Actual collection in the first six months post-cutover trended toward the lower end of this band because retail turnover dropped after the combined cutover.

Common confusion points

STT vs brokerage

STT is a statutory transaction tax payable to the government; brokerage is the broker’s fee. The STT hike affected the statutory component only. Broker fees on F&O were affected separately by the true-to-label charges framework, but that change operated through a different mechanism (exchange-charge pass-through) and is sometimes confused with the STT hike in retail communications.

STT on options: premium vs notional

Options STT is calculated on the option premium, not on the notional contract value. A confusion that surfaced after the lot-size revision was whether the larger contract size automatically meant larger STT; it does not, because STT scales with premium, and premium per lot scales linearly with lot size. The STT-per-rupee-of-premium rate changed under the hike; the underlying notional scaling did not.

Buy-side STT on F&O

Buying futures or options does not attract STT in India. The hike affected only sell-side rates. Some retail communications erroneously suggested buyers also faced higher STT; the buy side remained zero across all F&O contract types.

See also

External references

References

  1. Union Budget 2024-25, speech of Finance Minister Nirmala Sitharaman, 23 July 2024, indiabudget.gov.in.
  2. Finance (No. 2) Act, 2024, provisions on Securities Transaction Tax rates effective 1 October 2024.
  3. Central Board of Direct Taxes, notifications operationalising the F&O STT rate change, October 2024, incometaxindia.gov.in.
  4. Securities and Exchange Board of India, “Measures to Strengthen the Index Derivatives Framework,” circular dated 1 October 2024, sebi.gov.in.
  5. Zerodha brokerage calculator and support documentation, zerodha.com/brokerage-calculator and support.zerodha.com, accessed May 2026.
  6. NSE charges and transaction charges documentation, nseindia.com/products-services/transaction-charges-equity, accessed May 2026.
  7. Zerodha Varsity Module 7 on Markets and Taxation, zerodha.com/varsity, accessed May 2026.
  8. Financial press coverage of the Union Budget 2024 STT hike and the post-cutover impact on F&O turnover, archives 2024-2025.

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