The central government has exempted petrol blended with higher levels of ethanol from excise duty, extending fiscal support beyond the existing E20 fuel standard. The move applies to fuel variants containing between 22 per cent and 30 per cent ethanol, including E22, E25, E27 and E30 blends.
The decision marks one of the first major tax incentives aimed specifically at encouraging the use of ethanol blends above E20. It comes as India continues to expand its biofuel programme to reduce dependence on imported crude oil and promote cleaner fuel alternatives.
New standards and tax support pave way for higher blends
The excise-duty exemption follows the recent notification of fuel-quality standards for E22, E25, E27 and E30 petrol blends by the Bureau of Indian Standards (BIS). The standards came into effect on May 15, 2026, and outline specifications related to ethanol content, octane ratings, sulphur limits and testing procedures.
Industry observers view the combination of technical standards and tax incentives as an important step towards the future adoption of higher ethanol-blended fuels across the country.
Ethanol blending programme gathers pace
India’s ethanol blending initiative has expanded rapidly in recent years. Under the National Policy on Biofuels, the government advanced its target of achieving 20 per cent ethanol blending in petrol from 2030 to the Ethanol Supply Year 2025-26.
According to government data, public sector oil marketing companies achieved 10 per cent blending in June 2022 ahead of schedule. Blending levels subsequently increased to 12.06 per cent in 2022-23, 14.60 per cent in 2023-24 and 17.98 per cent in 2024-25 up to February 2025.
Government highlights economic and environmental benefits
The government sees ethanol as a strategic tool for reducing India’s dependence on imported fossil fuels. India remains one of the world’s largest crude oil importers, making fuel imports a significant burden on the economy.
Union Minister for Road Transport and Highways, Nitin Gadkari, has repeatedly argued that higher ethanol use can lower pollution, support domestic agriculture and help retain money within the country that would otherwise be spent on fuel imports.
The policy is also expected to create additional demand for ethanol feedstocks and support farmers involved in supplying raw materials for biofuel production.
Debate over higher ethanol blends continues
The expansion of ethanol-blended fuel has generated discussion among vehicle owners regarding compatibility and fuel efficiency. Concerns linked to E20 fuel previously reached the Supreme Court, which dismissed a petition challenging its nationwide rollout in 2025. The government maintained that the transition had been thoroughly evaluated and would deliver broader economic benefits.
Industry groups have stated that while some older vehicles may experience a slight reduction in mileage with higher ethanol content, E20 fuel does not present a safety risk.
The latest tax exemption suggests policymakers are preparing for a future in which ethanol blends beyond E20 play a larger role in India’s fuel ecosystem.