India MTF Calculator (Margin Trading Facility)
What a margin-funded share purchase really costs, day by day.
Interest and charges
| Item | Buy | Sell | Total |
|---|
The longer you hold
| Days | Interest | Break-even | Net P&L |
|---|
At the sell price you entered. Each extra day adds a day’s interest to the price you need.
How this was calculated
Results are estimates for general information and planning, not financial advice. Banks and institutions may calculate differently (rounding, fees, rate changes). Confirm figures with your lender or a qualified adviser before deciding.
About the India MTF Calculator (Margin Trading Facility)
With a Margin Trading Facility (MTF) you pay part of a share purchase — your margin — and your broker funds the rest, charging interest on the funded amount for every day you hold the shares, which are pledged to the broker as security. The leverage multiplies gains and losses, and the interest grows with every day you wait.
Enter the shares, the buy and sell prices, your margin %, your broker’s interest rate (a day or a year) and the days you plan to hold, and see the funded amount, the interest, every charge of a delivery trade on both sides — STT, exchange charges, the SEBI fee, stamp duty, GST — plus your broker’s brokerage, DP and pledge charges, then the net P&L, the return on your margin and the break-even sell price. A table shows how the break-even price climbs the longer you hold, and the same money invested without MTF is shown for comparison. It is maths only: no stock tips.
How to use it
- Enter the number of shares, the buy price and the price you expect to sell at (leave it empty to see only the break-even price).
- Enter your margin as a % of the purchase — the share you pay; your broker lists it for each stock it funds — and your broker’s interest rate, choosing % a day or % a year as your broker quotes it.
- Enter the days you expect to hold the shares; interest is charged for each day the position stays funded.
- Enter your broker’s brokerage, pledge charges and DP charge, choose the exchange, and, for the margin-call price, the maintenance margin.
- Read the net P&L, the return on your margin and the break-even price, check the table of holding periods, then copy the summary or download the CSV.
Examples
Brokerage ₹20 an order · pledge charges ₹30 · DP charge ₹13.50
Funded ₹75,000 · interest ₹900 · charges ₹331.39 · net profit ₹8,768.61 (35.07% on your ₹25,000 margin) · break-even ₹1,012.22
Interest = ₹75,000 × 0.04% × 30. Charges include STT of ₹210 (0.1% on each side) and ₹15 of stamp duty.
Interest ₹10,950 · net loss ₹1,281.39 · break-even ₹1,112.83
A 10% rise in the share price no longer covers a year of interest on the funded ₹75,000.
25 shares · charges ₹121.34 · net profit ₹2,378.66 (9.51%)
Leverage of 4× turned a 9.51% return into 35.07% over 30 days — and works the same way on a fall.
Common uses
- See the real cost of holding a margin-funded position for a week, a month or a year.
- Find the price a stock must reach before an MTF trade makes money.
- Compare an MTF purchase with buying fewer shares with your own money.
- Check the interest and charges on your broker’s ledger.
How the cost is worked out
- Funded amount = buy value − your margin; leverage = 100% ÷ margin %.
- Interest = funded amount × daily rate × days. A yearly rate is divided by 365: 14.6% a year is 0.04% a day. The interest is simple (not compounded) and assumes the funded amount stays the same.
- Charges are those of a delivery trade on each side: STT 0.1% on the buy and 0.1% on the sell, NSE transaction charges of ₹307 a crore of turnover on each side, the SEBI fee of ₹10 a crore, stamp duty of 0.015% on the buy, and 18% GST on brokerage, exchange charges, the SEBI fee and the DP charge. Pledge charges get 18% GST too.
- Net P&L = sell value − buy value − charges − interest; return on margin = net P&L ÷ your margin.
- Break-even is the sell price at which the net P&L is zero; each extra day held adds that day’s interest to it.
- Margin call price = funded amount ÷ (shares × (1 − maintenance margin)): below it, your own share of the position’s value falls under the maintenance margin.
Where the statutory rates come from
The same rates as the brokerage calculator: STT under the Finance Act, 2026, s.159 as set out in NSE circular NSE/FATAX/73524; NSE transaction charges from NSE circular NSE/FA/73061; the SEBI fee as circulated in NCL/CMPL/72712; stamp duty under the Indian Stamp Act as collected through the exchanges (NCL/CMPT/43116). BSE’s transaction charge is not built in: enter it from your contract note.
What the broker sets
The margin for each stock, the interest rate, the day interest starts (for example the day after the purchase), brokerage, pledge and unpledge fees and the DP charge all come from your broker’s tariff, so enter them from it: the figures on this page are examples, not any broker’s rates. If your ledger shows GST on the MTF interest, tick Add GST on interest.
Limitations
- Interest is worked out on a constant funded amount; brokers charge on the funded balance each day, and unpaid interest debited to your account can itself be funded.
- Brokers can change the margin of a stock, ask for more margin or sell the shares if the margin is not kept; the margin-call price is only an estimate from the maintenance margin you enter.
- Contract notes round STT and stamp duty and combine a day’s trades in a scrip, so the figures can differ by a few rupees.
- Income tax on the gain, auto square-off charges and late-payment penalties are not included. Nothing here is investment advice.
Privacy
Everything is calculated in your browser. The figures you enter are never uploaded or stored.
Frequently asked questions
How is MTF interest calculated?
Interest = funded amount × daily rate × days held. If you buy shares worth ₹1,00,000 with a 25% margin, the broker funds ₹75,000; at 0.04% a day that is ₹30 a day, or ₹900 for 30 days. A yearly rate is divided by 365: 14.6% a year is 0.04% a day.
What is the break-even price of an MTF trade?
The sell price that pays back the purchase, the charges on both sides, the pledge charges and the interest. In the example above it is ₹1,012.22 after 30 days, and it rises by about ₹0.30 for every extra day the shares are held.
Which charges apply to an MTF trade?
The charges of a delivery trade on both the buy and the sell — brokerage, STT, exchange transaction charges, the SEBI fee, stamp duty on the buy and 18% GST on the fees — plus the DP charge when the shares are sold, pledge and unpledge charges, and the interest on the funded amount.
Is MTF better than buying with my own money?
It lets the same money buy more shares, so a rise earns more and a fall loses more, and the interest is a cost every day. In the example, ₹25,000 earns 35.07% with MTF over 30 days against 9.51% without; held for a year, the same price rise ends in a loss with MTF.
What happens if the share price falls?
Your own share of the position’s value shrinks. When it falls below the broker’s maintenance margin, the broker asks you to add margin and can sell the shares if you do not. Enter the maintenance margin to see roughly where that happens: with ₹75,000 funded on 100 shares and a 20% maintenance margin, it is about ₹937.50 a share.
Is GST charged on MTF interest?
GST at 18% is charged on brokerage, exchange charges, the SEBI fee, DP and pledge charges. Check your broker’s ledger for the interest: the calculator adds GST on it only if you tick Add GST on interest.