SSGC Gas Tariff and Slab Rates Explained (Protected vs Non-Protected)

Almost every complaint about a Sui gas bill comes back to one thing that nobody explains on the bill itself: the slab. Understand how slabs work and a bill that looked like a mistake usually turns out to be arithmetic — brutal arithmetic, but arithmetic. Misunderstand them and you will spend years being ambushed every January.

This guide explains what a slab is, what protected and non-protected mean in practice, and why using barely more gas can cost you dramatically more money. Then it shows you how to find your own position on the scale so you can see the next boundary coming.

What a slab actually is

Natural gas is not priced at one flat rate. OGRA — the Oil and Gas Regulatory Authority — notifies a set of consumption bands, and each band carries its own rate per MMBTU. SSGC bills you according to the band your monthly consumption falls into.

Two things make this harder than it needs to be:

1. Your meter measures volume, but the tariff is priced in energy. The meter counts cubic metres; the bill converts them to HM3 (hundreds of cubic metres) and then to MMBTU using the heating value of the gas supplied to your area. Roughly 1 HM3 becomes about 3.53 MMBTU, though the exact figure moves slightly month to month.
2. The bands are narrow at the bottom. The whole protected range fits inside 0.9 HM3 a month. A household with a geyser can cross several bands in one winter.

If units and conversions are what is confusing you, the gas unit converter handles all four units at once and shows you the arithmetic.

Protected versus non-protected

The bill prints a category, and it is the single most important field on it.

Protected consumers are domestic users whose consumption stays inside the low band, meeting SSGC's criteria for the concessionary rate. Protected rates are dramatically lower — the intent is that a modest household with modest usage pays a modest amount.

Non-protected consumers are everyone else on a domestic connection. The rates step up much more steeply and the fixed monthly charge is higher too.

The important and widely misunderstood part: this is not a status you apply for once and keep. It is tied to your consumption pattern. A household that has been protected for years can be re-categorised after a run of higher-consumption months, and the first sign is usually a bill that looks impossible.

The domestic slab structure

Here are the indicative bands. Treat the rates as a guide for understanding the shape of the tariff, not as a quotation — OGRA revises them, and your bill is the authority on what you owe.

Protected consumers

Non-protected consumers

Look at the non-protected column as a shape rather than a list of numbers. Between the second and third band the rate rises by two thirds. Between the fifth and sixth it nearly doubles. Those are not gentle gradients — they are cliffs, and consumption walks off them without any warning from the bill.

Slab-rate versus telescopic: the part that decides everything

There are two ways a slab structure can be applied, and the difference matters more than the rates themselves.

Telescopic (progressive) billing charges each portion of your consumption at the rate for its own band. Use 0.7 HM3 as a non-protected consumer and the first 0.25 is priced at Rs 300, the next 0.35 at Rs 600, and the remaining 0.1 at Rs 1,000. Income tax works this way, and it feels fair because the extra unit only costs the extra rate.

Slab-rate (flat) billing charges your entire consumption at the rate of the band you land in. Use 0.7 HM3 and every bit of it is priced at Rs 1,000.

Domestic gas billing in Pakistan has generally applied the slab-rate method, which is precisely why bills behave so violently. Under slab-rate billing, crossing a boundary by 0.01 HM3 — about one cubic metre of gas, a bit more than one extra geyser session — re-prices the whole month.

Our bill calculator shows both methods side by side and warns you how much headroom is left before the next boundary — which is the single most useful number in this whole article.

What else is on the bill besides gas

The slab rate only prices the gas. A domestic bill also carries:

• A fixed monthly charge, currently around Rs 400 for protected and Rs 1,000 for non-protected consumers. It applies whether you use gas or not.
• Meter rent, a small monthly amount of roughly Rs 40.
• GST at 18% on the gas charge.
• Arrears, if anything from a previous month is unpaid.
• Late payment surcharge, if the previous bill went past its due date. That is 10% of the unpaid amount and it compounds — see the surcharge and disconnection timeline.

This is why a month in which you genuinely used almost no gas still produces a bill. The fixed charge and meter rent are not consumption; they are the cost of having a connection at all.

How to find your own slab position

You do not need to wait for the bill.

1. Read your meter today and write the figure down with the date. The meter reading guide covers which digits count.
2. Read it again next month on roughly the same date.
3. Subtract. The difference in cubic metres divided by 100 gives you HM3.
4. Find that figure in the table above for your category.
5. Work out your headroom — how far you are from the top of your band. The meter reading calculator does steps 3 to 5 for you and shows the cost of crossing the line.

Do this for two or three months and you will know your household's normal range. After that, an abnormal bill announces itself immediately instead of arriving as a shock.

Why winter destroys the maths

Almost every household in Sindh and Balochistan has a seasonal consumption curve, and the driver is almost always water heating.

A geyser is not a marginal appliance. Heating water from a winter inlet temperature to a usable one takes far more energy than heating it in July, and the same shower therefore costs meaningfully more gas. Add a slab structure with cliffs in it and a 30% rise in consumption can produce a bill that more than doubles.

The practical consequences:

• A protected household can lose its category over winter. Watch the category field between December and February.
• Small reductions pay disproportionately if they keep you below a boundary. Dropping 0.02 HM3 is worthless in the middle of a band and worth hundreds of rupees right at the edge of one.
• The geyser thermostat is the cheapest lever you have. 18 ways to cut your gas bill ranks the rest of them by actual impact.

When the slab is not the explanation

Sometimes a bill is high for a reason that has nothing to do with tariff bands: an estimated reading being trued up, a leaking joint quietly consuming gas around the clock, arrears you did not notice, or a genuine meter fault. Why is my SSGC bill so high works through twelve causes and the exact step to take for each.

The order to check in is simple: category field, then present reading, then arrears line, then consumption. Three of those four take ten seconds each, and they rule out the most common explanations before you get to the hard one.

The short version

Domestic gas in Pakistan is priced in bands, your whole month is charged at the band you land in, and the bands get steeper as you climb. That is the entire mechanism behind almost every shocking gas bill.

You cannot change the tariff. You can know which band you are in, how much room is left in it, and whether your category has quietly changed — and that is enough to turn most gas-bill surprises into something you saw coming a fortnight earlier.