Margin Interest
Margin interest is the fee charged by a broker to a client for the use of borrowed funds or for carrying positions that exceed the client's own capital, typically levied as a percentage per annum on the funded or leveraged portion, and applicable both in the Margin Trading Facility (MTF) for delivery trades and for overnight funding of leveraged positions.
When an investor uses the Margin Trading Facility (MTF) to purchase shares beyond what their own capital can support, the broker funds the shortfall from its own resources (or via bank borrowing). This funding is not free—the broker charges interest at a negotiated or disclosed rate, known as margin interest, on the funded portion of the position. Unlike intraday leverage (MIS product type, which must be squared off on the same day), MTF allows positions to be carried overnight and beyond, with interest accruing daily on the funded amount.
Margin interest rates in the Indian market typically range from 12% to 18% per annum for retail MTF clients, though institutional clients or clients with negotiated pricing can access lower rates. Interest is calculated on a daily basis on the outstanding funded balance and debited from the client's trading account periodically (monthly or quarterly, depending on the broker's policy). Some brokers charge a flat daily fee rather than an annualised percentage.
For short-term traders who use MTF to amplify positions for a few days to a few weeks, margin interest is a direct cost that must be incorporated into the total cost of the trade. A position held for 10 days at 15% per annum interest rate incurs approximately 0.41% interest cost (15% ÷ 365 × 10), which competes with the expected return from the position. For longer holding periods, margin interest can significantly erode profitability.
Margin interest is separate from brokerage and other transaction charges. It is also distinct from the cost of using securities collateral (pledged shares) to meet margin requirements—if a trader uses their own pledged shares to fund margin, no interest is charged as long as the collateral is sufficient. Margin interest arises specifically when the broker extends cash funding.
SEBI does not regulate the specific interest rate a broker can charge for MTF, though the overall MTF framework is regulated under SEBI's Margin Trading Circular. Brokers must disclose their MTF rates in the account opening documentation, and clients must understand the compounding effect of daily interest on extended positions.