MTF Calculator
Margin Trading Facility (MTF) lets you buy more stock than your own cash allows — but you pay daily interest on the borrowed part. Enter your trade to see your leverage, interest cost, breakeven, and how MTF compares with buying the shares outright.
For the full walkthrough, read our complete MTF guide. This tool is for education only — not investment advice.
Your MTF trade
The trade, your broker's rate, and the move you expect.
Each broker is set at its standard rate. Compare all 18 brokers' rates by plan →
Over the whole holding period, not per day.
Net return on your margin if the stock rises 15% in 90 days
+49.2%
₹1.6 L profit on your ₹3.25 L margin after ₹35,100 of interest, against 15% for buying the shares outright.
Interest for 90 days
₹35,100
≈ 14.6% a year
Breakeven move
+2.7%
to cover interest
Position P&L
+₹1.95 L
before interest
Beats delivery above
+3.6%
else buy unleveraged
Who funds the position
- Your margin
- ₹3.25 L
- Broker funds
- ₹9.75 L
- Position
- ₹13 L
How this is worked out. You pay 25% of the position and the broker funds the rest at 0.04% a day. The stock must rise 2.7% in 90 days just to cover that interest; the return on your margin is what is left after it.
Return on your margin vs. the stock's move
After 90 days of interest. The dot marks the move you expect.
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Your numbers, step by step
Position value
₹1,300 × 1,000 = ₹13,00,000
Your margin (25%)
₹13,00,000 × 25% = ₹3,25,000
Broker funds & leverage
₹13,00,000 − ₹3,25,000 = ₹9,75,000 funded · 4.00×
Interest · 90 days
₹9,75,000 × 0.04% a day × 90 = ₹35,100
P&L if the stock moves +15%
₹13,00,000 × 15% = +₹1,95,000
Net profit or loss
+₹1,95,000 − ₹35,100 interest = +₹1,59,900
Result
Net return: +49.2% on your ₹3,25,000 margin
The stock only needs to rise +2.7% to cover interest — but MTF beats buying the shares outright only above +3.6%. Below that, plain delivery returns more.
Estimates only — brokerage and taxes (STT, GST, stamp duty) are excluded, MTF interest accrues each day the position is open, and margin % and rates vary by broker, plan, and stock. Broker rates are each broker's standard published rate from our MTF rate tracker, reviewed 10 Sep 2026. Confirm live figures with your broker.
How the math works
Two formulas drive everything the calculator shows:
- Leverage = Position value ÷ your margin
- MTF interest = Funded amount × daily rate × days held
Interest is charged only on the funded (borrowed) part — never on your own margin or the full position. Because your gains apply to the whole position but interest to just the borrowed slice, the stock only has to rise a fraction of the headline rate to break even.
When MTF makes sense
- You are highly convinced the stock will rise — and soon.
- Your broker's MTF rate is low — compare 18 brokers' rates.
- The holding period is short — interest accrues every day.
- You have a stop-loss to cap the leveraged downside.
Worked example
Buy ₹10,00,000 of stock at 25% margin. You put in ₹2,50,000; the broker funds ₹7,50,000 — that is 4× leverage. At 0.04%/day for 90 days, interest is about ₹27,000. If the stock rises 15% (a ₹1,50,000 gain on the full position), your net is roughly ₹1,23,000 — about 49% on your own ₹2,50,000.
Common mistakes
- Assuming interest is on the full trade value — it is only on the funded part.
- Holding too long — daily interest quietly erodes the gain.
- Forgetting losses are leveraged too — a small drop can wipe out your margin.
- Ignoring brokerage, STT, GST, and daily margin top-ups.
Frequently asked questions
How is MTF interest calculated?
MTF interest is charged only on the amount the broker funds (the borrowed portion), not on your own margin or the full position value. It accrues daily: Interest = Funded amount × daily rate × number of days the position is held.
Is interest charged on the full trade value?
No. If you buy ₹10,00,000 of stock with 25% margin, you put in ₹2,50,000 and the broker funds ₹7,50,000. Interest applies only to that ₹7,50,000 funded amount.
What is the breakeven in MTF?
The breakeven is how much the stock must rise just to cover the interest cost before you make any profit. Because interest is charged only on the funded portion while your gains apply to the full position, the breakeven move is smaller than the headline interest rate.
When does MTF beat buying with your own money?
MTF only out-returns regular (unleveraged) delivery once the stock moves beyond a crossover point — roughly the interest rate itself over the holding period. Below that, buying without leverage returns more because you pay no interest.
Which stocks and brokers allow MTF?
MTF is available on a broker-approved list of stocks and ETFs (not F&O or intraday). The margin required and interest rate vary by broker, brokerage plan, and the stock's risk category. Always confirm the live figures in your broker's app.
Disclaimer: This calculator is for educational purposes only and does not constitute investment advice. Figures are estimates and exclude brokerage and taxes. Confirm current margins and rates with your broker before trading.