The levy embedded in a fuel purchase by volume.
Levy paid
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Total spend
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Levy share of spend
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A flat charge hiding inside the pump price
Every litre of petrol or diesel you buy in Pakistan carries a petroleum development levy, a fixed rupee amount the federal government adds on top of the base fuel cost. Unlike sales tax, it is not a percentage of the price, which is why it does not shrink when oil gets cheaper. The State Bank and the Finance Division set the rate, and it changes through budget measures and periodic notifications. This calculator pulls the levy out of your fill-up so you can see, in plain rupees, how much of your spend is this one charge rather than the fuel itself.
How the tool separates levy from fuel
The arithmetic is deliberately simple. You enter the litres you bought and the price per litre at the pump. The tool multiplies your litres by a per-litre levy figure to get the rupees of levy embedded in the purchase, then multiplies litres by your pump price to get total spend, and divides one by the other to show the levy's share. The per-litre figure this calculator applies is PKR 78, which reflects a cap that has been used in recent budget cycles. Treat that as the modelled rate, not a certified current number, and confirm the latest notified levy with the FBR (Federal Board of Revenue) and the Finance Division before you rely on it, because this is one of the most frequently revised charges in the system.
Why a flat levy bites harder when fuel is cheap
This is the counterintuitive part worth understanding. Because the levy is a flat PKR 78 a litre rather than a percentage, its share of your total spend rises when the underlying fuel price falls and shrinks when fuel prices climb. At a high pump price the levy is a small slice. At a low pump price the same PKR 78 is a much bigger fraction of what you hand over. So a drop in global oil prices does not always reach your wallet in full, because a fixed levy occupies more of the gap.
A 40-litre fill-up, broken down
Suppose you fill 40 litres at PKR 270 a litre. At the PKR 78 per litre rate this calculator applies, the levy inside that purchase is PKR 3,120, while your total spend is PKR 10,800. That makes the levy 28.89 percent of what you paid, close to a third of the bill, even though it never appears as a separate line on the receipt.
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The chart in the results panel shows the split: the teal slice is the levy, the grey slice is the rest of the spend.
Who finds this useful, and a common slip
This tool is handy for a commuter budgeting monthly fuel, a small fleet operator costing deliveries, or anyone curious about where the money goes at the pump. One thing to keep in mind: the levy is not the only government charge on motor fuel. Other taxes and margins also sit inside the price, so the figure here is just the development levy, not your full tax burden on fuel. A common mistake is to assume the share stays constant. It does not. Rerun the tool whenever the pump price moves and you will see the percentage shift even though the rupee levy per litre has not changed.
Is the petroleum levy the same on petrol and diesel?
Not always. The notified levy can differ between high-speed diesel, petrol, and other products, and the government sometimes sets different caps for each. This calculator uses a single per-litre figure, so if you are pricing diesel specifically, check the notification for that product and adjust the rate before trusting the rupee amount.
Can I claim the petroleum levy back as a business?
The petroleum development levy is generally not a recoverable input tax the way sales tax can be for a registered business, because it is a levy rather than a VAT-style charge. It is usually a straight cost that flows into your fuel expense. Confirm the current treatment with the FBR and a tax adviser, since rules around fuel-related charges change and depend on your registration and sector.