Electricity Tariff Slabs in Pakistan: A Complete Guide

Pakistan's electricity pricing is not a single flat rate per kilowatt-hour. It is a layered system where the rate you pay depends on how many units you consume in a month, what type of connection you have, and what protection category NEPRA assigns to you. Understanding the tariff structure is the single most useful thing a consumer can do to predict their bill, avoid surprises, and make smart conservation decisions.

This guide covers every major consumer category — domestic, commercial, industrial, and agricultural — and explains how NEPRA determines rates, how slabs interact, and what you can do to stay in a lower tier.

How Pakistan's Slab-Based Tariff Works

A slab-based tariff divides monthly consumption into bands (slabs), each charged at a different per-unit rate. The more you consume, the higher the rate applied to the additional units — and in some cases, to all units for that month. This is a progressive pricing model designed to keep costs low for small consumers while recovering higher costs from heavy users.

For example, a residential consumer using fewer than 100 units in a month pays a significantly lower per-unit rate than one using 400 units. The difference between slabs can be several rupees per unit, which is why a 50-unit increase in consumption during summer can add several hundred rupees to a bill that the raw unit increase alone would not explain.

The Domestic Tariff (A-1 Category)

The A-1 tariff applies to residential single-phase consumers connected to a 230V supply. It is the tariff that affects the overwhelming majority of Pakistani households. NEPRA divides A-1 into sub-categories based on usage levels and protection status:

A-1(01) — Protected consumers: Residential users who have kept consumption at or below 200 units in every one of the previous six months. Protected consumers receive lower rates at each slab and are generally exempt from FPA (Fuel Price Adjustment) for the first 50 units. This category was created to protect low-income households from fuel-cost volatility.

A-1(02) — Unprotected consumers: All other A-1 consumers. If your consumption has exceeded 200 units in any month in the last six cycles, you are unprotected and billed at higher slab rates. The transition back to protected status requires six consecutive months at or below 200 units.

Slab Benefit: The Critical Threshold

For unprotected domestic consumers, crossing 100 units in a billing month triggers what is called 'slab benefit removal' — the entire consumption for the month is rebilled from the lowest slab upward, not just the units above 100. This is why a bill for 101 units can be dramatically more expensive than a bill for 99 units, even though only two additional units were consumed.

For protected consumers, the benefit is retained across more slabs and provides a softer cost progression. Knowing where your typical monthly usage sits relative to key slab thresholds — 100, 200, 300, 400, 500, 700 units — helps you make conservation decisions with real financial impact.

Commercial Tariff (B Categories)

Commercial consumers — shops, offices, restaurants, hotels, healthcare facilities, and similar businesses — are billed under the B category of NEPRA tariffs. Unlike the domestic A-1, commercial tariffs typically do not have the same slab structure; instead, they apply a fixed per-unit energy charge plus a fixed charge component (for sanctioned load), and often include a demand charge for larger connections.

Commercial consumers on three-phase connections (B-2, B-3) may be eligible for Time-of-Use (TOU) metering, where peak-hour units (typically evening hours) are billed at a higher rate and off-peak units at a lower rate. TOU tariffs reward businesses that can shift heavy loads outside peak hours — refrigeration cycling, water pumping, batch processes — to the cheaper off-peak window.

Industrial Tariff (C and D Categories)

Large industrial consumers (factories, processing plants, heavy equipment) operate under the C and D tariff categories, which include demand-based billing alongside per-unit charges. In demand billing, the peak demand (in kW or kVA) recorded during the billing period is a separate charge from the energy (kWh) consumed.

Industrial consumers with poor power factors pay more because low power factor increases apparent demand without delivering useful work. Many industrial units install capacitor banks specifically to improve power factor and reduce demand charges. The industrial tariff also interacts with a TOU structure for consumers on the national grid's 66kV or 132kV supply.

Agricultural Tariff (D and Special Categories)

Agricultural connections — tube wells, irrigation pumps, cold storage for crops — receive subsidized rates under NEPRA policy because the agricultural sector is treated as a priority in Pakistan's food security framework. Agricultural tariffs are typically flat per-unit rates without slab structures, and may include seasonal concessions during crop cycles.

However, unauthorized use of agricultural connections for non-agricultural purposes (running factories or commercial operations on a farm supply) is a common compliance issue that DISCOs investigate and that can result in tariff reclassification and back-billing at the correct category rate.

How NEPRA Sets and Revises Tariffs

NEPRA (National Electric Power Regulatory Authority) is the independent regulator responsible for setting, reviewing, and revising electricity tariffs in Pakistan. Tariff revisions happen through a formal public process: the DISCO or CPPA-G files a petition requesting a change; NEPRA holds hearings (public notices are issued); and a determination is issued that sets the new rates.

Fuel Price Adjustments (FPA) are a separate monthly adjustment approved by NEPRA based on CPPA-G's reported fuel cost data. This is why the actual per-unit amount on your bill can differ from the base tariff rate — the FPA adds or subtracts from the base depending on that month's fuel cost versus the reference cost built into the tariff.

To find the most current tariff rates for your category, visit NEPRA's official website (nepra.org.pk) and look for the latest tariff determination or consumer tariff notification. Your DISCO's website also typically publishes the current applicable rates.

Taxes and Surcharges on Top of the Tariff

The tariff rate you see in a NEPRA determination is not the total amount on your bill. Several taxes and surcharges are added on top:

• GST (General Sales Tax) — a percentage added on the total energy charges
• Electricity Duty — a provincial levy, typically a percentage of energy charges
• TV Fee (PTV license) — a flat per-month fee applied to all domestic consumers
• Financing Cost (FC) Surcharge — a per-unit charge to service national power-sector debt
• Tariff Rationalization (TR) Surcharge — equalizes tariff across DISCOs with different cost structures
• Meter Rent — a small monthly charge for the meter equipment
• Late Payment Surcharge (LPS) — applied if you miss the due date

How to Reduce Your Slab — Practical Steps

The most effective way to lower your electricity bill is to reduce monthly unit consumption enough to stay within a lower slab bracket. This is particularly powerful for unprotected domestic consumers near a threshold. If you are consistently consuming 210–230 units, dropping to 195–200 units keeps you in a lower slab for the entire month — not just the marginal units.

Track your consumption daily or weekly by reading your meter directly. Most digital meters display the cumulative kWh reading; subtract last month's reading from today's to estimate where you will land by billing month end. Adjust AC temperature, defer heavy appliance cycles, or pre-cool rooms before evening peak hours to stay within your target slab.

For commercial and industrial consumers, reviewing your maximum demand (MD) reading can yield significant savings if your sanctioned load is much higher than your actual peak demand. In some cases, applying to your DISCO for a lower sanctioned load reduces the fixed demand component of your bill without any impact on the units you consume.