India STT Calculator: Securities Transaction Tax on Trades
Work out the Indian STT (Securities Transaction Tax) on a trade — the small tax levied on the value of transactions in listed securities — and the total including the levy.
Adjust the inputs and select Calculate for a full breakdown.
Compare Common Scenarios
How the numbers shift across typical situations for this calculator:
| Scenario | Securities Transaction Tax | Transaction value plus STT |
|---|---|---|
| 0.1% of ₹1,00,000 (₹100) | $100.00 | $100,100.00 |
| 0.1% of ₹5,00,000 (delivery equity) | $500.00 | $500,500.00 |
| 0.025% of ₹2,00,000 (intraday sell) | $50.00 | $200,050.00 |
| 0.02% of ₹10,00,000 (futures sell) | $200.00 | $1,000,200.00 |
How This Calculator Works
Enter the transaction value and the STT rate for your segment. The calculator shows the STT due. STT is collected automatically by the stock exchange/broker on eligible trades and appears in your contract note. The rate varies by segment (delivery equity, intraday, futures, options) and by whether you're buying or selling, so use the correct rate for your trade.
The Formula
Percentage Add-On
Rate is the tax or tip percentage applied to the amount
Worked Example
At 0.1% on a ₹1,00,000 delivery equity trade, the STT is ₹100. STT (Securities Transaction Tax) is a direct tax charged on transactions in listed securities on Indian stock exchanges — equity shares, equity mutual funds, and derivatives. It's collected at source by the exchange through your broker, so you don't pay it separately. The rate is segment-specific: roughly 0.1% on both legs of delivery-based equity, much lower on intraday and futures, and charged differently (on the premium, sell side) for options.
Key Insight
STT is a small but ever-present cost in Indian trading, and knowing where it applies matters more than the formula. It's a transaction tax on listed securities — equity delivery, intraday equity, equity-oriented mutual funds (on redemption), futures and options — collected at source by the exchange via your broker and shown on the contract note, so it's deducted automatically rather than self-paid. The rate is not uniform: delivery-based equity is taxed on both buy and sell (around 0.1% each side), intraday equity only on the sell side at a lower rate, futures on the sell side at a small rate, and options are taxed on the sell side of the premium (with a higher rate on exercised options' settlement value) — so the right figure depends entirely on the segment and side, which is why this calculator lets you set the rate. STT interacts with income tax in an important way: because STT has been paid, equity gains qualify for the concessional capital-gains regime (the lower long-term rate with its exemption threshold, and the special short-term rate), and STT itself is not separately deductible for investors (though active traders treating gains as business income may treat it as an expense). STT rates are set in the Union Budget and have been revised periodically (notably increases on F&O), so verify current rates. The tax is levied regardless of profit — you pay it on the transaction value even on a losing trade — making it part of the round-trip cost alongside brokerage, exchange fees, GST, stamp duty and SEBI charges. This calculator shows STT on a single transaction value at the rate you choose; for total trade cost, add the other statutory charges, and be sure to use the segment- and side-specific STT rate.
Frequently Asked Questions
How is STT calculated?
Multiply the transaction value by the applicable STT rate. On a ₹1,00,000 delivery equity trade at 0.1%, STT is ₹100. The exchange collects it at source through your broker, so it appears on your contract note rather than being paid separately. The rate varies by segment and side.
What is STT?
Securities Transaction Tax — a direct tax on transactions in listed securities on Indian exchanges: equity shares, equity mutual funds, and derivatives. It's collected at source by the exchange via your broker. It applies to the transaction value regardless of whether the trade is profitable.
Why does the STT rate differ?
Because it's segment- and side-specific. Delivery equity is taxed on both buy and sell (around 0.1% each), intraday only on the sell side at a lower rate, futures on the sell side at a small rate, and options on the sell side of the premium. Use the rate matching your exact trade type.
Is STT deductible or refundable?
For investors, STT isn't separately deductible, but paying it is what makes equity gains eligible for the concessional capital-gains tax rates. Active traders treating gains as business income may claim STT as a business expense. It's not refundable — it's a cost of transacting, owed even on losing trades.
Do STT rates change?
Yes — STT rates are set in the Union Budget and have been revised periodically, including increases on futures and options. So always verify the current rate for your segment before relying on a figure. This calculator lets you enter the rate so you can match it to the latest rules.
Related Calculators
Methodology & Review
STT is the applicable rate applied to the transaction value; the total here is the value plus the STT figure so the tax (chargeAmount) and net are easy to read off. It models a single STT rate on the value and does not pick the rate for you — the rate differs by segment (delivery equity, intraday, futures, options) and side (buy/sell).
Written by Ugo Candido · Last updated May 22, 2026.