Zerodha earns most of its money from trading and from client funds. Brokerage is charged only on intraday and futures and options orders, capped at ₹20 per executed order, while equity delivery trades are free. The second large stream is interest income, mainly on client margin money and on its own cash reserves. Since December 2024 the company has also run a margin trading facility (MTF), which Nithin Kamath said contributed around 10% of FY26 revenue. Smaller streams include demat annual maintenance charges, Kite Connect API subscriptions and fees at Zerodha Fund House. Until SEBI's 'true to label' rule took effect in October 2024, brokers also kept a margin on exchange transaction charges; for Zerodha that income fell from about $46.4 million (₹400 crore) in FY25 to nil in FY26.