F&O Trading Gets Costlier in 2026: New STT Rates Explained

It has been about six weeks since the new STT rates on futures and options came into effect.

For some traders, the impact has been exactly what they expected. For others, it has been an uncomfortable recalibration, a realisation that strategies which worked in March look different on paper in April and May, once the revised cost structure is built properly into the numbers.

If you are still trying to make sense of what changed, why it changed, and what it means for how you trade going forward, this piece is worth reading carefully.

What is STT, and what changed

Securities Transaction Tax (STT) is a tax the government charges every time you trade securities in the stock market. It was introduced in 2004 and gets automatically deducted from every transaction. Most traders barely notice it because it shows up as a small line in the contract note.

But small adds up. Especially when you are trading derivatives every day.

Budget 2026 was announced on February 1. One of the key changes was a significant STT hike on F&O trading, effective April 1, 2026. 

Here is the before and after:

Equity delivery, intraday cash trades, and mutual funds are untouched. This change targets derivatives exclusively.

Why did this happen

The F&O segment in India has been growing very fast. More and more retail traders entered the derivatives market in the last few years, attracted by the promise of quick returns. The reality was very different. SEBI data has repeatedly shown that more than 90% of retail F&O participants lose money, with many continuing to trade even after repeated losses.

That consistently poor outcome for retail traders is what triggered regulatory action.

SEBI had already started tightening things in November 2024, introducing mandatory upfront premium collection, increasing contract lot sizes, and reducing the number of weekly expiry contracts. The Budget 2026 STT hike is the next step in that same direction.

Finance Minister Nirmala Sitharaman described it as "reasonable course correction in the F&O segment." The post-budget briefing was more direct; the goal is to reduce excessive speculation and betting-style behaviour in derivatives, particularly among uninformed retail traders.

And this increase is part of a bigger pattern. In just 16 months before Budget 2026, futures STT was increased four times, moving from 0.0125% to 0.05%. Options STT more than doubled in the same period. If you have been trading F&O for a couple of years, you have already absorbed multiple rounds of cost increases, whether you noticed them or not.

What it means in actual rupees

A trader executing 10 futures contracts per day is now paying an additional ₹3,000 in STT daily, roughly ₹75,000 per month across 25 trading days. That sits on top of brokerage, GST, exchange charges, and SEBI turnover fees, none of which changed. 

For scalpers and high-frequency traders running strategies with tight per-trade margins, that number does not just compress returns. For some, it has made certain strategies unviable at their previous scale.

Options sellers are not spared either. STT applies on every premium sold, which means traders running high-turnover weekly expiry strategies absorb the increase across every single position they put on. The breakeven point has moved; a larger favourable price movement is now required before any given trade becomes profitable.

Who is feeling it and who is not

The intraday trading costs impact is not the same for everyone.

Futures traders running scalping or high-frequency strategies feel it most. The 150% futures STT increase directly hits strategies built on volume with tight margins per trade.

Weekly options sellers face higher friction on every position. If your strategy was marginally profitable before April, it needs a serious rethink now.

SEBI data shows 90-93% of F&O traders were already losing money before this hike. The higher breakeven threshold makes that number likely to worsen in the near term.

Long-term equity investors, SIP investors, and mutual fund holders are not affected at all. Delivery trade STT has not changed. For someone buying and holding stocks, STT is paid just twice over the entire investment period: once when you buy and once when you sell.

What you should do now

The STT hike 2026 is already in effect. The question now is how to trade around it.

Start by revisiting your breakeven numbers. Map the new STT rates into your actual strategy and compare what your margin looks like today versus what it was in March. Some strategies will still work. Others need to be adjusted or replaced.

Think about trade frequency. Because options STT and futures STT apply on every transaction regardless of profit or loss, high-frequency approaches with low conviction per trade are the most vulnerable. Fewer, better-quality setups tend to work better in a higher-cost environment.

On the tax side, traders who declare F&O income as business income in their ITR can claim STT as a deductible expense under Section 36 of the Income Tax Act. That partially offsets the additional cost. If you have not structured your filings this way, speak to your CA, especially now that the amounts are larger.

Where things stand in May 2026

The announcement came in February. Implementation started in April. We are now in May, and the new cost reality is simply the market everyone is trading in.

The direction of SEBI regulation and derivatives taxation in India has been consistent for over a year, higher costs, tighter rules, and a clear intent to reduce retail speculation in F&O. That direction is unlikely to reverse.

The traders who are navigating this well are not the ones hoping things go back to the way they were. They are the ones who have updated their approach to match the current environment, running the real cost numbers, adjusting position sizes, and making sure every trade they put on has a genuine reason to exist beyond just being a trade.

Because safe haven investing and long-term thinking always outlast short-term friction.

And in the end, the return has to justify the full cost of getting there.