IESCO (Islamabad Electric Supply Company) serves Islamabad, Rawalpindi, Attock, Jhelum and Chakwal. Its customers include government offices, large housing societies, commercial plazas and a growing number of rooftop solar users. Many IESCO homes have higher sanctioned loads and three-phase or time-of-use meters, so the bill can look more complicated than in other areas. This guide breaks the IESCO bill down into simple parts.
Rates and taxes are updated through NEPRA and federal notifications, so use this guide to understand the structure, and verify current numbers officially.
Reading the IESCO bill header
- Reference number (14 digits) and customer ID
- Tariff: A-1 residential, A-2 commercial, B industrial, C bulk supply (for some housing societies), D agriculture
- Sanctioned load and meter phase
- Billing month, reading date, issue date and due date
If you live in a society supplied through a bulk connection, your bill may be issued by the society rather than IESCO, and the PITC portal will not show it.
Units and slabs
Units consumed = present reading − previous reading. Residential consumers are billed by slabs:
- Protected: 200 units or less in each of the last six months; lower rates for 1–100 and 101–200 units.
- Non-protected: higher rates that increase with consumption slabs.
Houses with sanctioned load of 5 kW or more are generally required to have a time-of-use (TOU) meter, in which case units are billed at peak and off-peak rates rather than by slabs. Peak hours vary by season, so check the hours printed on your bill or IESCO notifications.
Solar consumers in IESCO
Rawalpindi and Islamabad have many solar homes. If you have a bidirectional meter, your bill shows import units (taken from the grid) and export units (sent to the grid). Under older net metering agreements, exported units offset imported units. Under the newer net billing framework notified in February 2026, exports are bought at a lower rate while imports are charged at the normal tariff. See our net metering and net billing guides for details.
Adjustments
- FPA (fuel price adjustment) — monthly, per unit, based on an earlier reference month.
- QTA (quarterly tariff adjustment) — applied for a quarter.
- Other approved adjustments or deferred amounts may appear as separate lines.
Taxes and government charges
- GST on the electricity value.
- Income tax on commercial and industrial bills above certain amounts.
- Extra and further tax for commercial consumers not on the Active Taxpayer List or without sales tax registration.
- Electricity duty and PTV fee were removed from electricity bill collection in 2025.
Why your IESCO bill may suddenly increase
- You crossed 200 units and lost protected status for six months.
- The reading period was longer than usual.
- A positive FPA or QTA was applied this month.
- An arrears or detection bill was added.
- Your meter is faulty (it may run fast or show a stuck display).
How to dispute an IESCO bill
Visit your sub-division office with your bill, a meter photo showing the current reading and date, and your CNIC. Submit a written complaint and keep the reference. You can also call 118. If the issue is not resolved, consumers can approach NEPRA's complaint system.
Reduce your IESCO bill
- Use inverter ACs and keep the thermostat at 26°C.
- If you have a TOU meter, run water pumps, washing machines and irons in off-peak hours.
- Keep an eye on your meter in June, July and August when usage peaks.
- Make sure your solar system's export and import readings are recorded correctly.
Check your IESCO bill online
Enter your 14-digit reference number on the official PITC IESCO bill page. Our bill checker opens the correct page in one click.