Contract reference
BSE lot size and what it means for your ITR-3
BSE LIMITED trades in lots of 200 for the AUG-26 expiry. Below: the lot size for every listed expiry, the charges that apply, and how quantity on this contract becomes F&O turnover in your return.
Scope: ITR FNO produces automated, source-linked workpapers for CA review. It is not an e-filing service, legal opinion, tax audit, or substitute for your chartered accountant. Your CA decides the tax position and files the return.
Current lot size
One BSE contract is 200 units for the AUG-26 expiry. At an assumed price of Rs 100 the notional value of one lot is Rs 20,000; substitute the price you actually traded at. The price is an illustration and is not market data — this page publishes contract specifications, never quotes.
Source: NSE market lots file, dated by NSE. Last verified by this site . NSE lot sizes as published on 2026-07-31; last checked against NSE on 2026-08-02. Lot sizes are contract specifications and are revised periodically; check the source file before relying on a figure for a position you are about to take.
Lot size for every listed expiry
NSE publishes the lot size for each listed expiry month, so a revision is visible before it takes effect. A contract you are holding keeps the lot size it was listed with; a new expiry may not.
| Expiry | Lot size | Notional at Rs 100 |
|---|---|---|
| AUG-26 | 200 | Rs 20,000 |
| SEP-26 | 200 | Rs 20,000 |
| OCT-26 | 200 | Rs 20,000 |
Charges on a BSE futures round trip
One lot bought and sold at Rs 100, before brokerage. Every rate below names its own source, and a rate this project has not read in the gazette says so rather than passing as settled law.
| Charge | Amount | Source |
|---|---|---|
| STT on futures (sell side) | Rs 10.00 | Finance Act, 2026 (No. 4 of 2026), s.159, amending s.98 of the Finance (No. 2) Act, 2004 (Table entry (c)) |
| Stamp duty on futures (buy side) | Rs 0.40 | Indian Stamp Act, 1899, Schedule I Art. 62 as substituted by the Finance Act, 2019 — Rs 200 per crore, non-delivery derivatives |
| Exchange transaction charges (futures) | Rs 0.69 | NSE circular on uniform transaction charges — Rs 1.73 per lakh |
| Investor Protection Fund levy (derivatives) | Rs 0.04 | NSE IPFT circular — Rs 10 per crore (futures), Rs 50 per crore of premium (options) |
| SEBI turnover fee | Rs 0.04 | SEBI (Stock Brokers) Regulations — turnover fee of Rs 10 per crore of turnover |
| GST on brokerage and exchange charges | Rs 0.13 | CGST + SGST/IGST at 18% on the value of brokerage services |
| Total | Rs 11.30 |
Options carry a different set: STT falls on premium sold rather than notional, and an exercised option attracts its own higher rate on settlement value. Charges are deductible business expenditure in the F&O profit-and-loss computation, not a reduction of turnover.
Expiry-day rule
A position not squared off before the close on expiry day settles. An index contract settles in cash against the settlement value; a stock contract settles by physical delivery, which changes both the charge that applies (exercise STT rather than sale STT) and how the leg is recorded in the workpaper. An exercised or assigned position is still a settled outcome and still enters turnover.
How quantity on this contract becomes ITR-3 turnover
Turnover is not what you traded — it is what settled. Ten lots of BSE at 200 units each is 2,000 units of exposure on the AUG-26 contract, and none of that number appears anywhere in your return. What enters turnover is the outcome of each settled position.
The rule that governs: ICAI GN 2022/2023 para 5.10b — absolute profit/loss, sale premium not added
The result is a figure that is normally far below the notional value of the contracts and far above net profit. It feeds the F&O turnover field in Part A - Trading Account of ITR-3 for AY 2026-27, and it is the input to the section 44AB threshold test.
The formula half the internet still teaches is superseded
You will find the formula “absolute profit plus premium received on options sold” repeated widely, including by sources that have not been updated in years. It no longer governs. The 2022 revision removed premium received on sale of options from F&O turnover. Turnover is now the sum of absolute favourable and unfavourable differences alone.
Superseded: Pre-2022 ICAI Guidance Note — absolute profit/loss PLUS premium received on sale of options. SUPERSEDED; do not file on this figure.
Authority: ICAI Guidance Note on Tax Audit under section 44AB of the Income-tax Act, 1961, 8th edition (2022), para 5.10 — as carried into the 2023 revision, effective .
The difference is not academic. For an option writer the older formula can add the entire premium received to turnover, pushing a book that sits below the section 44AB threshold on the current rule above it — and a tax audit obligation that does not exist is an expensive answer to get wrong in either direction. Which threshold applies also depends on the 5% cash receipts and payments test and on presumptive-tax history, so turnover alone does not settle it. See how F&O turnover is computed and when a tax audit applies.
Upload your broker Tax P&L and the turnover, the Trading Account fields and the section 44AB position are computed from it, with every figure pointing back at the row it came from, for your chartered accountant to review and file.
Other underlyings
Every listed F&O underlying and its current lot size is on the lot size index. The rules that govern how any of them enter a return are in the guides.
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