See the exact rupee cost of STT, exchange fees, GST, SEBI charges and brokerage on your trades. Paste your tradebook CSV — all calculation happens in your browser.
This is a calculation tool only. CernoQuant is not registered with SEBI or any regulatory body and does not provide investment advice.
IPFT bundled into txn — matches Zerodha contract note exactly.
Default ₹20 flat (Zerodha/Dhan/Angel/Fyers).
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Every trade in Indian markets incurs five to seven separate charges regardless of outcome. Securities Transaction Tax (STT) is levied by the government. Exchange transaction charges go to NSE or BSE. GST (18%) applies to brokerage and exchange charges combined. SEBI turnover fees fund the regulator. Stamp duty is collected by state governments. Brokerage is the broker's revenue.
None of these charges depend on whether you profited. A ₹50 premium option trade incurs STT whether the trade wins or loses. Your gross P&L never tells you what you actually kept.
Post-Budget 2026, STT on options is 0.15% on the sell-side premium — not on the notional value. This is different from futures (0.05% on turnover) and equity delivery (0.1% on both sides).
Example: Sell 1 lot NIFTY CE at ₹100 premium, lot size 75. Premium value = ₹7,500. STT = ₹7,500 × 0.15% = ₹11.25. Add exchange charges (₹26.65), GST (₹8.52), SEBI (₹0.075), stamp duty (₹2.25) and brokerage (₹20) = ₹68.55 total per trade.
Scale this across 200 option trades and you're looking at ₹13,710 in charges alone.
Intraday equity trades have STT of 0.025% on sell-side turnover. F&O options are 0.15% on premium. F&O futures are 0.05% on turnover. Delivery equity is 0.1% on both buy and sell.
Stamp duty also varies: options carry 0.003% on buy-side premium, futures carry 0.002% on buy-side turnover. This is why the same rupee volume of trades can produce drastically different charge amounts across segments.
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