India's Securities Transaction Tax (STT) collections reached ₹40,214 crore by September 17, a 53% rise from the previous year. This growth is largely driven by higher tax rates introduced in the Union Budget, even as new regulatory measures aimed at cooling derivatives trading start to impact market volumes.
The Indian government’s revenue from the Securities Transaction Tax (STT) has recorded a sharp increase in the first half of the 2026-27 financial year. As of September 17, 2026, total collections stood at ₹40,214.36 crore, a 53% rise compared to the ₹26,305.72 crore collected during the same period in the previous year.
This revenue spike follows tax rate adjustments announced in the Union Budget, which took effect from April 1, 2026. The government raised the STT on futures trades from 0.02% to 0.05% of the transaction value. Additionally, the levy on options premium turnover was increased from 0.10% to 0.15%, and the tax on exercised options was raised to 0.15% from 0.125%. This marks the second time these tax rates have been revised since 2024.
Impact of Regulatory Changes on Trading
While higher tax rates have boosted collections, the trading environment has shifted. Regulatory bodies, including the Securities and Exchange Board of India (SEBI), have implemented stricter measures in the derivatives market to manage risks and curb excessive speculative activity. Recent rules, such as requirements for 100% collateral and modifications to the closing auction session, have started to affect trading volumes over the last month.
STT is a direct tax on transactions conducted on recognized stock exchanges, including equity trades, futures, options, and equity-oriented mutual funds. Because a large portion of this revenue is linked to the derivatives segment, changes in trading behavior directly affect total collections.
Fiscal Outlook for FY27
The government has set a target of ₹73,700 crore for STT collections in FY27. Having already crossed ₹40,000 crore in less than six months, the revenue momentum remains strong. However, investors may monitor whether ongoing regulatory measures lead to a sustained drop in derivatives trading volumes. If trading activity cools significantly in the second half of the year, it could moderate the pace of growth for these tax collections. The government's final revenue from this stream will depend on the balance between market participation levels and the higher cost of trading.