LESCO Bill Calculator 2026-27: 100, 200, 300, 500, 1000 Units Worked Examples (Rs 5k to Rs 50k Bills)

How much is a LESCO bill at 100, 200, 300, 500 or 1,000 units? This page works each one out line by line on the February 2026 tariff.

Before the numbers, the one rule that makes most online answers wrong.

Un-Protected Consumers Get No Slab Benefit

The tariff notification is explicit, and the DISCOs reprint it word for word on their own published schedules:

> "only protected residential consumers will be given the benefit of one previous slab"

So if you are un-protected, which most households are, the rate of the slab your monthly total lands in applies to every unit of that month. Five hundred units cost 500 x Rs 38.95. They do not cost 100 at Rs 22.44, then 100 at Rs 28.91, then 100 at Rs 33.10 and so on.

That single difference is worth about Rs 3,500 on a 500 unit bill, and it is why so many published "500 unit bill" figures come out 20 to 25 percent low.

Only protected consumers, at or under 200 units for six consecutive months, get progressive treatment, and only across their own two slabs.

Every Bill at a Glance

Un-protected, 2 kW sanctioned load, filer, FPA and QTA set to zero so the rows are comparable.

Every total also includes Electricity Duty at 1.5 percent and the Rs 35 PTV fee. Non-filers add 7.5 percent Section 235 withholding once the bill reaches Rs 25,000, which first bites at 500 units.

To run your own figure with the actual FPA and QTA from your bill, use the Electricity Bill Calculator Pakistan or the LESCO Bill Calculator.

100 Units

A protected consumer using the same 100 units pays about Rs 1,131, because the lifeline rate of Rs 7.74 applies and no fixed charge is levied. That is roughly a third of the un-protected bill.

200 Units: the Most Expensive Boundary on the Table

Same 200 units, 2.2 times the bill. Protected status needs 200 units or less every single month for six consecutive months, and one month over 200 loses it. If your usage sits in the 180 to 220 band, this is the largest saving available to you, larger than any appliance change.

300 Units, and Why 301 Costs Rs 1,350 More

One unit, Rs 1,354. The rate change applies to all 301 units, and the fixed charge tier steps from Rs 350 to Rs 400 per kW at the same moment. If your meter reads 295 around the 25th of the month, switching off a spare AC or skipping two geyser cycles for the last few days is worth more than anything else you can do.

500 Units: Where Non-Filers Start Paying Extra

This is the first row on the table where the bill crosses Rs 25,000, so it is the first row where filing an FBR return pays for itself several times over. Filing a return, even a nil one, removes the charge entirely, and it is adjustable against your annual liability if you do file.

1,000 Units

At this level no behavioural change moves the number much: the household is already deep in the top slab and every unit costs Rs 47.20. Solar with net billing is the only structural fix. The Solar Payback Calculator models it against the actual bill.

Your Sanctioned Load Changes the Total

Fixed charges are billed per kW of sanctioned load, not as a flat amount per bill. At 500 units the rate is Rs 500 per kW:

Your sanctioned load is printed on the bill. If it is far higher than anything you actually run, a reduction application at your SDO office is worth asking about.

Adding FPA and QTA

Every example above sets FPA and QTA to zero so the rows compare cleanly. Real bills carry both, and they are the main reason your bill differs from an estimate.

A 350 unit bill comes to about Rs 17,453 with both at zero. Put a typical FPA of Rs 3.50 and QTA of Rs 1.50 per unit on it and the same bill becomes about Rs 19,549, roughly Rs 2,100 higher. Both figures are printed on your bill as their own line items, so enter the real ones in the calculator.

These Numbers Apply to Every DISCO

Domestic rates are uniform nationwide. NEPRA's decision of 12 January 2026 carries an identical A-1 residential table in its ex-WAPDA DISCO annex and its K-Electric annex, so every figure on this page applies equally to IESCO, MEPCO, GEPCO, FESCO, HESCO, SEPCO, PESCO, QESCO, TESCO and K-Electric.

What genuinely varies between utilities is the FPA and QTA applied in a given month, the provincial Electricity Duty, and whether a Time of Use tariff is offered.

Four Things That Actually Lower These Bills

1. Stay under the slab boundary. Worth over Rs 1,350 for one unit at the 300 mark, and similar at every other boundary. Nothing else on this list gives that return.
2. File your FBR return if your bill is over Rs 25,000. Worth 7.5 percent of the whole bill, about Rs 1,970 at 500 units and Rs 4,630 at 1,000.
3. Get back under 200 units if you are close. Protected status more than halves the bill at the same consumption, but it takes six consecutive months.
4. Solar with net billing once the bill is consistently above Rs 25,000 to Rs 30,000.

Sources and Verification

Rates are the applicable variable charges under S.R.O. 279(I)/2026, effective February 2026, as published in the DISCOs' own tariff guides, corroborated by S.R.O. 1157(I)/2025 (Ministry of Energy, 1 July 2025, Annex-A-1) and by NEPRA's Decision of the Authority dated 12 January 2026.

Every total on this page is produced by the same engine that powers the Electricity Bill Calculator Pakistan. Its order of operations and the base of each tax were verified against LESCO's own bill estimator and reconcile to the rupee at 150, 500, 700 and 900 units.

Caveat worth stating plainly: LESCO's estimator currently computes on a lower per-unit figure than the notified schedule (Rs 35.24 against Rs 38.95 on the 401-500 slab, checked 17 August 2026), so a real bill may come in under these figures. We follow the notification because it is the dated, published instrument. Arrears, instalments, meter rent, late payment surcharge and detection bills are excluded throughout.