About this tool
IESCO (Islamabad Electric Supply Company) covers Islamabad, Rawalpindi, Attock, Jhelum and Chakwal, and its bills rarely make sense at a glance. The total isn't simply units times a rate; it's assembled from a base slab rate, a Fuel Price Adjustment, a Quarterly Tariff Adjustment that NEPRA revises every few months, general sales tax, electricity duty, a financing surcharge, a TV licence fee, and a fixed monthly charge, all stacked on top of each other.
This calculator follows that same structure. Enter the units from your meter or your last bill, say whether the connection is protected (averaging 200 units or less a month) or unprotected, and whether it's single-phase or three-phase. It then itemises everything: energy charges by slab, FPA, QTR, surcharges, tax, the fixed charge, and a total at the bottom.
FPA and QTR shift every one to three months, and the rates here get reviewed and updated periodically to track that. Even so, treat the result as an estimate. Arrears, a different meter reading date, or a rate change that hasn't been updated yet can all push the real bill away from what's shown here, so the official bill is still the number that counts.
