From 1 Apr 2026 all three F&O STT rates went up, and the futures rate rose most in proportion
Take one lot of 65 units sold as an option at a premium of Rs 100 a unit, a premium value of Rs 6,500. Before 1 Apr 2026 the STT on that sale was 0.10%, or Rs 6.50. From 1 Apr 2026 it is 0.15%, or Rs 9.75. The figures are an illustration, not a market price.
Three rates changed on 1 Apr 2026. The option and futures rates applied from 1 Oct 2024, and the exercise rate had stood at 0.125% for years.
- Sale of an option, on premium, paid by the seller: 0.10% to 0.15%.
- Exercise of an option, on intrinsic value, paid by the buyer: 0.125% to 0.15%.
- Sale of a future, on turnover, paid by the seller: 0.02% to 0.05%.
Exercise is charged on intrinsic value, the gap between settlement and strike, and the buyer pays it. On the same Rs 6,500 of intrinsic value, it cost Rs 8.13 before and costs Rs 9.75 after.
A futures sale with a turnover of Rs 15 lakh paid Rs 300 at 0.02% and pays Rs 750 at 0.05%. In proportion, that is the largest rise of the three.
STT is one line on the contract note. Brokerage, exchange charges, the SEBI fee and stamp duty come on top, and GST applies to brokerage and exchange charges, not to STT. Brokerage is not statutory, so the calculator labels it as an assumption.
Your own change depends on the premium you sell, the options you exercise and your futures turnover, which this page cannot see. The rates come from NSE circular NSE/FATAX/73524, dated 31 Mar 2026.
Before you trade. Derivatives trading carries a high risk of loss. SEBI's study "Profitability of Individual Traders in the Equity Derivatives Segment (FY25 to FY26)" (August 2026) found that 87.7% of individual traders in equity F&O made net losses in FY26, with aggregate net losses of Rs 91,685 crore. Read the SEBI study