What is an MTF calculator?
An MTF (Margin Trading Facility) calculator shows what a leveraged delivery trade really costs before you place it. Enter the share price, quantity, leverage, interest rate and how long you plan to hold, and it works out how much you pay upfront, how much the broker lends you, the interest that builds up every day and your profit after those costs.
Each broker above has its own calculator, pre-filled with that broker's MTF interest rate, maximum leverage and pledge charge wherever we have them — so the numbers match the broker you actually trade with.
How MTF interest is calculated
Brokers charge interest only on the amount they fund, for every calendar day you hold the position:
- Your margin = Position value ÷ Leverage
- Broker funded amount = Position value − Your margin
- Interest = Funded amount × Annual rate ÷ 365 × Holding days
Example: a ₹1,00,000 position at 4× leverage needs ₹25,000 from you, and the broker funds ₹75,000. At 15% a year held for 30 days, the interest is about ₹925 — plus a one-time pledge charge for the stock.
What to compare between brokers
- Interest rate — even a 3–4% difference per year adds up quickly on large or long-held positions.
- Maximum leverage — higher leverage means less of your own money, but a bigger loss on a price fall.
- Pledge charges — MTF shares must be pledged, and brokers charge per stock (scrip) for it.
- Approved stock list — only stocks on the broker's MTF list can be bought with margin funding.
Know the risks before you use MTF
Leverage multiplies losses as much as gains. A 10% fall in a 4× position wipes out 40% of your own margin, and if the value drops below the required margin you must add funds or the broker can sell your shares. Interest keeps running on weekends and holidays, so MTF suits short-to-medium holds where your expected gain clearly beats the funding cost. The calculators cover interest and pledge charges only — brokerage, STT, GST and exchange charges are extra.