STT Calculator (India)

Calculate the Securities Transaction Tax on any trade — equity delivery, intraday, futures or options — at current FY 2026-27 rates. See exactly which side STT applies to and how much it adds to your cost, rounded to the nearest rupee.

Segment

Buy value (₹)

Sell value (₹)

Securities Transaction Tax (STT)

₹210

Applies on

Both buy & sell legs

Rate: 0.1%

STT breakdown

Buy side (0.1% × ₹1,00,000)	₹100.00
Sell side (0.1% × ₹1,10,000)	₹110.00
Total STT (rounded to nearest ₹)	₹210

STT is a statutory tax collected by the exchange — it is identical across all brokers and is rounded to the nearest rupee.

Rates are FY 2026-27 (post 1-Apr-2026 revision): delivery 0.1% on both legs, intraday 0.025% on sell, futures 0.05% on sell, options 0.15% of premium on sell. STT on exercised options is charged on intrinsic value and is not modelled here. Figures are estimates — verify on your broker's contract note. TopOpenTools is not a SEBI-registered investment adviser; this tool is for information only.

Frequently Asked Questions

What is STT?

Securities Transaction Tax (STT) is a statutory tax levied on the purchase and sale of securities listed on Indian stock exchanges. It is collected by the exchange at the time of the trade and is the same regardless of which broker you use.

What are the STT rates for FY 2026-27?

Equity delivery is taxed at 0.1% on both the buy and sell legs. Equity intraday is 0.025% on the sell side only. Equity futures are 0.05% on the sell side, and equity options are 0.15% of the premium on the sell side (raised from 0.10% on 1 April 2026).

Is STT charged on both buying and selling?

Only for equity delivery, where 0.1% applies to both the buy and the sell value. For intraday, futures and options, STT is charged on the sell side only — so buying alone incurs no STT in those segments.

Why is STT rounded to a whole rupee?

By statutory convention STT is rounded to the nearest rupee on the contract note. This calculator follows the same rounding, so the headline figure matches what your broker reports.

Is this investment advice?

No. This is a deterministic tax calculator for information only. TopOpenTools is not a SEBI-registered investment adviser and does not recommend any trade or broker.

Understanding the STT Calculator (India)

The STT Calculator works out the Securities Transaction Tax payable on a trade on Indian stock exchanges. STT is a statutory tax collected by the exchange at the time of every purchase and sale of listed securities — it is identical across all brokers and sits inside the total charges on your contract note. This tool covers all four equity segments (delivery, intraday, futures and options) at current FY 2026-27 rates and shows exactly which side of the trade the tax applies to.

How it works

Pick a segment and enter your buy and/or sell value. STT is applied at the segment's statutory rate: equity delivery is taxed on BOTH the buy and sell legs, while intraday, futures and options are taxed on the sell side only. Options STT is charged on the premium, not the contract's notional value. The calculator multiplies the relevant value by the rate, sums the legs, and rounds the result to the nearest rupee — the same rounding convention exchanges use on the contract note.

Delivery STT = 0.1% × buy value + 0.1% × sell value; Intraday STT = 0.025% × sell value; Futures STT = 0.05% × sell value; Options STT = 0.15% × sell premium (result rounded to nearest ₹)

Worked example

You buy ₹1,00,000 of shares for delivery and sell them for ₹1,10,000. STT on the buy leg is 0.1% × ₹1,00,000 = ₹100, and on the sell leg is 0.1% × ₹1,10,000 = ₹110. Total STT = ₹100 + ₹110 = ₹210. For an intraday trade with the same values, only the sell side is taxed: 0.025% × ₹1,10,000 = ₹27.50, which rounds to ₹28.

Tips & common mistakes

Remember STT is charged on both legs only for delivery — for intraday, futures and options it applies to the sell side only, so buying alone costs nothing in STT.
Options STT is on the premium (sell value), not the strike or notional contract value, so it is usually far smaller than the contract size suggests.
STT is a tax, not brokerage — it is the same no matter which broker you trade through, so it never helps to shop brokers on STT.
STT paid on a trade is not separately deductible, but it forms part of your cost of acquisition/sale when computing capital gains.
If you exercise an option, STT is charged on the intrinsic value at a different rate — this calculator covers traded (sold) options, not exercised ones.

Sources & methodology

• Securities Transaction Tax Act, 1956 and Finance Act revisions effective 1 April 2026
• NSE / BSE statutory charges schedules, FY 2026-27
• Equity options STT raised to 0.15% of premium and futures to 0.05% on the sell side (Budget revision, effective 1 April 2026)

Built and maintained by TopOpenTools · Last updated June 2026. These tools provide general estimates for educational purposes only and are not financial, tax, insurance, investment, or medical advice. Verify important decisions with a qualified professional.