Zerodha FY2025: Revenue ₹8,810 Cr. PAT ₹4,232 Cr. 48% Net Margin. No External Capital, Ever.

The Number That Matters

Zerodha's FY2025 filing does something unusual in this analysis: it shows a company that is massively, structurally profitable.

Revenue fell 11.5% to ₹8,810 Cr. PAT fell 23% to ₹4,232 Cr. Both numbers are lower than FY2024's record. Both numbers are also exceptional by any reasonable standard.

A 48% net profit margin. On ₹8,810 Cr of revenue. With no debt. And no external capital, ever.

For context: Porter - the most profitable company in this analysis before Zerodha - earned a 3.1% net margin in FY2025. That was celebrated as a milestone. Zerodha earns 48%.

The revenue decline is real and worth understanding. But the margin structure is the story.

Why Revenue Fell

FY2024 was exceptional. India's stock market had a sustained bull run, retail participation in F&O (Futures and Options) hit record highs, and Zerodha processed an enormous volume of derivatives trades. Revenue reached ₹9,950 Cr. PAT reached ₹5,495 Cr.

Then SEBI acted.

Starting October 2024, SEBI implemented a series of F&O regulatory changes: minimum lot sizes for index derivatives were increased significantly (making each contract larger and reducing the number of retail participants who could afford them), weekly expiry contracts were restricted to one index per exchange, and margin requirements were tightened. The stated goal was to reduce retail speculation in derivatives.

It worked. F&O volumes fell across the market. Zerodha's brokerage income fell from ₹6,395 Cr to ₹5,411 Cr - a ₹984 Cr reduction.

Year	Revenue	PAT	Net Margin
FY2023	₹6,833 Cr	₹2,909 Cr	43%
FY2024	₹9,950 Cr	₹5,495 Cr	55%
FY2025	₹8,810 Cr	₹4,232 Cr	48%

The table reframes the decline. FY2025's ₹8,810 Cr is not a bad number - it is 29% higher than FY2023 and the company still earns a 48% net margin. The SEBI regulation created a step-down from a peak, not a structural collapse.

Where the Money Goes

Total expenses FY2025: ₹3,217.81 Cr against ₹8,834.45 Cr total income (revenue + other income). The ₹5,617 Cr gap is the pre-tax profit.

Other expenses: ₹2,646.66 Cr (30% of revenue) The largest single cost line for Zerodha is structural to the brokerage business. This includes exchange transaction fees paid to NSE and BSE, SEBI regulatory charges (calculated on turnover), clearing and settlement costs, and technology infrastructure. For a broker processing millions of trades daily across F&O, equity, and commodity segments, exchange fees scale directly with volumes. The ₹31 Cr increase year-on-year (despite an 11.5% revenue fall) reflects fixed components of the exchange fee structure.

Within other expenses, CSR spending was ₹123.81 Cr - up from ₹85.21 Cr FY2024. This is mandatory 2% of average net profits under the Companies Act. Zerodha routes its CSR through Rainmatter Foundation, focused on climate, financial literacy, and healthcare.

Employee costs: ₹538.79 Cr (6.1% of revenue) Includes ₹295.34 Cr in salaries and ₹230.40 Cr in director remuneration - Nithin Kamath's compensation as CEO. No ESOP charges in FY2025 (was ₹54.52 Cr in FY2024). Zerodha compensates primarily in cash.

Finance costs: ₹2.77 Cr Negligible. The cost of the lease liabilities on office space. No interest on debt because there is no debt.

A Note on Cash Flow for Brokers

Zerodha's reported OCF of ₹12,551.35 Cr requires context. For a stockbroker, the operating cash flow statement includes movements in client margin money - funds deposited by customers to trade and withdrawn when positions are closed or margin is released.

These flows can swing by thousands of crores between years depending on market conditions and client behaviour. They are not cash generated by Zerodha's business operations - they are client funds passing through the entity. OCF fell from ₹9,056 Cr to ₹2,037 Cr from FY2023 to FY2024, then jumped to ₹12,551 Cr in FY2025. None of this reflects the actual business performance.

For Zerodha, PAT (₹4,232 Cr) and the balance sheet equity build (₹16,611 Cr, up from ₹12,381 Cr) are the correct measures of value created.

Zero Debt, Zero External Capital

The balance sheet is the cleanest data point in this analysis.

• Total equity: ₹16,611.21 Cr (up ₹4,230 Cr from FY2024 - exactly equal to PAT retained)
• Total borrowings: ₹0
• No shares issued in any form across all recorded years in MCA filings

The equity growth is entirely organic: every rupee of the ₹16,611 Cr equity base is profit earned and retained since 2010. No IPO. No VC round. No ESOP dilution. No venture debt. The Kamath family retains full ownership of a business that generates ₹4,232 Cr in annual profit.

No dividends were distributed in FY2025 (ChangesInEquity equals PAT to the rupee - all profit retained). This is consistent across prior years.

Nithin Kamath: The Flat Fee That Changed Indian Broking

Nithin Kamath started Zerodha in 2010 with a thesis that the traditional Indian broking model was extracting value from retail investors. The established brokers - ICICI Direct, HDFC Securities, Kotak Securities, Sharekhan - charged percentage-based commissions. A ₹1 lakh trade cost ₹250-500 in brokerage. A ₹10 lakh trade cost ₹2,500-5,000.

Zerodha's answer: ₹20 per executed order, regardless of size. Zero brokerage for equity delivery trades. This model, called discount broking, was common in the US (where Robinhood and others had already disrupted full-service brokers) but nearly nonexistent in India.

The flat fee had two effects. It attracted India's cost-conscious retail trader - the person who wanted to trade frequently but was giving away margin to brokerage. And it forced Zerodha to build efficient technology, since the economics only worked at high volumes with low operating costs.

Fifteen years later: India's largest broker by active client count, ₹4,232 Cr in annual profit, and a technology stack (Kite, Coin, Streak, Sensibull) that became the reference point for retail trading platforms in India.

The FY2025 SEBI F&O headwind is the first significant external regulatory challenge to Zerodha's core F&O revenue. Nithin Kamath has publicly supported SEBI's intent - reducing retail F&O speculation - while acknowledging the revenue impact. The company's response has been to double down on long-term investment products (mutual funds via Coin, which generates trail income) that are less sensitive to trading volume cycles.

The Bottom Line

Zerodha's FY2025 filing answers a simple question: what does a well-run financial business look like after fifteen years of compounding?

₹4,232 Cr in profit on ₹8,810 Cr of revenue. 48% net margin. Zero debt. No external capital, ever. An equity base that grew by ₹4,230 Cr this year - and will grow again next year on retained earnings alone.

The revenue decline is real. SEBI's F&O regulations reduced the trading volumes that powered FY2024's record numbers. If the regulatory environment stays tight, FY2026 will show whether the decline stabilises at the FY2023 level (₹6,833 Cr / ₹2,909 Cr PAT) or FY2025's ₹8,810 Cr becomes the new normal.

Either scenario produces a highly profitable business. The margin structure - built on a flat-fee model with high operating leverage - means Zerodha earns substantial profit at almost any revenue level above the fixed cost base.

The harder question is strategic: whether a discount broker that built its dominance on F&O volumes can maintain that position as SEBI continues to shape the derivatives market. The trail income from Coin, the subscription income from premium features, and the expansion of the Zerodha product portfolio are all attempts to build revenue that is not tied to a single trade.

That diversification story will show up in FY2026 and FY2027. For now, the FY2025 filing reports what is already true: Zerodha is the most profitable company in Indian startup finance.