Windfall Tax and Special Additional Excise Duty (SAED)

A windfall tax is an extra tax that a government puts on a company's profits when those profits jump suddenly because of luck, not because of the company's own effort. The word "windfall" comes from fruit that falls from a tree because of the wind: the owner gets it without any work. In India, the windfall tax on oil is collected through a tool called the Special Additional Excise Duty (SAED), a duty charged per litre or per tonne on certain petroleum products.

Why does a windfall tax exist?

Sometimes a war, a blockade or a sudden shortage pushes world oil prices very high. Oil producers and refiners then earn huge profits without spending more or working harder. At the same time, ordinary people suffer from costly fuel. Governments argue that part of this unearned gain should go to the public treasury. They then use the money for relief, such as cutting fuel taxes for consumers.

There is also a second reason in India's case. When world prices are much higher than Indian prices, refiners prefer to export fuel to earn more. This can leave Indian petrol pumps short of supply. A tax on exports makes exporting less attractive, so more fuel stays at home.

Where did it come from?

The idea is old. The United Kingdom, for example, brought in the Energy Profits Levy in May 2022, an extra 25% tax on oil and gas profits. It was raised to 35% from January 2023 and to 38% from 1 November 2024, and it now runs until 31 March 2030 at the latest. India used its own version for the first time in 2022:

• 1 July 2022: After the Russia-Ukraine war pushed oil prices up, India imposed SAED of ₹6 per litre on petrol and ATF exports, ₹13 per litre on diesel exports, and ₹23,250 per tonne on crude oil produced inside India.
• From July 2022 onwards: The rates were changed every two weeks. The petrol export levy was removed within three weeks, on 20 July 2022, and the other rates moved up and down with global prices.
• September 2024: The levy on domestic crude was cut to nil, and the export levies were also brought to zero.
• 2 December 2024: The government formally withdrew the whole windfall tax through new notifications.
• 27 March 2026: Export levies on diesel and ATF came back during the West Asia crisis. A levy on petrol exports was added from 16 May 2026. Rates are again revised every fortnight.

What is the legal basis?

SAED is charged under Section 147 of the Finance Act, 2002. This section allows a special additional duty of excise on goods listed in the Eighth Schedule of that Act, on top of normal excise duty. Petrol (called "motor spirit" in law) and diesel (called "high speed diesel") are in that list. The actual rates are then set by government notifications under Section 5A of the Central Excise Act, 1944, which allows the government to exempt goods from duty, fully or partly.

In practice, the law fixes a high maximum rate, and the notification tells you the real, lower rate that applies.

How does it work, step by step?

Here is the cycle in simple terms:

1. Global prices of crude oil and refined fuels rise sharply.
2. The gap between what a refiner pays for crude and what it earns from selling petrol or diesel abroad grows. This gap is called the crack spread or refining margin.
3. The government notifies an SAED per litre on fuel cleared for export.
4. Every two weeks, officials look at average international prices since the last review. If margins rose, the levy goes up. If margins fell, the levy is cut, sometimes to zero.

Think of it like a school canteen where one item suddenly sells for double its usual price because of a shortage. The school says: "You may keep your normal profit, but give us part of this sudden extra gain, and also keep enough stock for our own students."

Which kind of tax is it?

This is a common confusion. Even though everyone calls it an "export duty", the fuel levy is legally an excise duty, not a customs duty. Excise is a tax on goods made in India. Customs is a tax on goods crossing the border. The SAED is an excise duty that applies only when the fuel is cleared for export.

Under Entry 84 of the Union List, only Parliament can tax petroleum crude, diesel, petrol, natural gas and ATF through excise, because these five products are still kept outside GST.

Key facts about the design

• It is a specific duty (a fixed amount per litre or per tonne), not a percentage of value.
• It applies to exports only; fuel sold inside India is not touched by this levy.
• The 2026 notifications exclude exports by public sector oil companies to Nepal, Bhutan, Bangladesh and Sri Lanka, so that India's neighbours keep getting fuel.
• SAED is not shared with states. The Centre keeps the full amount, because SAED works like a surcharge and stays outside the "divisible pool" (the part of central taxes shared with states on the Finance Commission's advice under Article 270).

India's position and Indian examples

India imports most of its crude oil, but it has a very large refining industry. It is a net exporter of refined petroleum products, which means it sells more petrol and diesel abroad than it buys. Large private refineries, especially on the Gujarat coast, sell a big share of their output overseas. This is why an export levy matters so much in India.

In 2022, the tax on domestic crude mainly hit producers like ONGC and Oil India, which sell crude at world-linked prices. The levy raised an estimated ₹25,000 crore in 2022-23 [Unverified].

Commonly confused concepts

• Windfall tax vs normal income tax: Income tax applies to all profits every year. A windfall tax targets only sudden, unusual gains and is meant to be temporary.
• SAED vs Basic Excise Duty: Basic Excise Duty is the ordinary excise rate and goes into the divisible pool, so states get a share. SAED is an extra layer that the Centre keeps fully.
• SAED vs Road and Infrastructure Cess (RIC): Both are extra charges on petrol and diesel, and the Centre keeps both. The RIC is a cess, a tax collected for a named purpose (roads and infrastructure). SAED is a special additional duty with no fixed purpose.
• Export levy on fuel vs customs export duty: A customs export duty (for example, on some rice or onions at times) is charged under the Customs Tariff Act, 1975. The fuel windfall levy is an excise duty charged under the Finance Act, 2002.
• India's SAED vs UK Energy Profits Levy: India's levy is a per-litre duty on products. The UK's levy is a percentage tax on company profits.

Issues, criticism and the way forward

• Policy uncertainty: Rates change every two weeks, sometimes sharply (diesel moved from ₹16 to ₹8.5 in one revision). Refiners say this makes it hard to plan exports and sign long-term deals.
• Investment signals: Critics argue that taxing high profits discourages investment in exploration and refining, which the country needs for energy security.
• Fiscal federalism: States point out that they get no share of SAED or cesses, even though fuel taxes are a big source of central revenue.
• Supporters' view: The government's position is that the levy protects domestic supply in a crisis, keeps prices stable for consumers, and shares an unearned gain with the public.
• Way forward: Experts suggest a clear, rule-based formula (for example, a levy that starts only above a set price or margin and ends automatically), so that companies know the rules in advance. Bringing petroleum under GST is another long-term suggestion, though the GST Council has not yet set a date for it.

Concepts to Know

• Excise duty: A tax on goods produced inside a country. It is charged when goods leave the factory or refinery.
• Specific duty: A tax charged as a fixed amount per unit (like ₹8.5 per litre), not as a percentage of the price.
• Crack spread: The difference between the price of refined products (petrol, diesel) and the price of the crude oil used to make them. It shows how much a refinery earns from processing.
• ATF (Aviation Turbine Fuel): The fuel used by jet aircraft.
• Divisible pool: The part of the Centre's tax collection that is shared with states, as recommended by the Finance Commission. Cesses and surcharges are kept out of it.
• Cess: A tax collected for a specific purpose, like roads or education. The Centre keeps all of it.
• Notification: An official order published in the Gazette of India that puts a rule or rate into effect.