Sources & References
The official authorities and company website this site’s information is based on.
Everything published on Onlinebillchecker.pk — tariff slabs, taxes, billing procedures, company contact details — comes from the official sources listed below. We list them here for two reasons: so you can verify anything we’ve written against the original, and so you know exactly where to go when you need the official version of a document.
If you ever find a mismatch between a figure on this site and one of these official sources, the official source is correct — and we’d appreciate you reporting it so we can fix it.
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NEPRA National Electric Power Regulatory Authority — sets the tariff slabs and FPA adjustments used in our calculatorsVisit Site
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PITC Power Information Technology Company — runs the official online bill system IESCO’s own bill lookup is built onVisit Site
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IESCO Islamabad Electric Supply Company — official website for Islamabad, Rawalpindi, Attock, Jhelum, and ChakwalVisit Site
How we use these sources: tariff figures in our calculators come from NEPRA’s published notifications, bill lookups rely on IESCO’s own official system, and procedural guides (new connections, complaints, duplicate bills) are written from the instructions IESCO publishes itself. This site holds no data of its own — it explains and points to theirs.
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Disclaimer: Onlinebillchecker.pk is an independent informational website. We are not affiliated with NEPRA, PITC, WAPDA, or IESCO. The links on this page go directly to those organisations’ own official websites; we do not host, copy, or control their data.