K-Electric Bill Calculator: Estimate Your Karachi Bill Before It Arrives (2026)

Updated: August 2026

Put 300 units into this K-Electric bill calculator and the August 2026 answer is Rs 13,286.85 within the due date — about Rs 44.3 per unit once everything is added — for a home with a 2 kW sanctioned load. Only Rs 9,930 of that is electricity (300 units at the Rs 33.10 slab). The rest is a Rs 700 fixed charge (Rs 350 per kW on that 2 kW load), a Rs 969 FC surcharge, Rs 155 of provincial duty, roughly Rs 2,010 of GST and a small fuel adjustment carrying its own taxes, softened by a Rs 596 quarterly credit that runs on June–August bills. Use 301 units instead of 300 and every single unit reprices at Rs 36.46, because K-Electric bills unprotected homes at the slab the whole month lands in.

The calculator below rebuilds your bill the same way KE’s billing system does — landing slab, fixed charge, surcharge, duty, GST, fuel adjustment, quarterly credit, all of it. It is already preset to K-Electric. Type your units and your sanctioned load, and read the total.

How to use this K-Electric bill calculator

Four inputs decide almost everything:

1. Consumer type. Unprotected is the default and covers most Karachi households. Pick Protected only if your usage stayed at or under 200 units for six straight months, and Lifeline only for small (≤1 kW) connections using up to 100 units. Unsure which you are? Our protected vs unprotected guide settles it in two minutes.
2. Units consumed. The number printed on your meter reading or last bill.
3. Sanctioned load. The “Load” figure printed on your bill, in kW. Since 12 February 2026 the fixed monthly charge is billed per kW of this number, so a 2 kW home pays twice the tariff-table rate and a 3 kW home three times. Most Karachi homes are 1–3 kW; the calculator defaults to 2.
4. The TOU switch. Flip it only if you have a time-of-use meter (peak and off-peak units are billed separately — more on that below).

The result table mirrors a printed KE bill line by line: energy charges, FC surcharge, the quarterly credit in green, the fixed monthly charge, duty, GST, then the fuel adjustment with its own duty and GST rows. If your estimate crosses Rs 25,000, a checkbox appears for the 7.5% Section 235 advance income tax — tick it only if you are not on FBR’s Active Taxpayers List. The last row shows what you’d owe after the due date, with the 10% late payment surcharge included. Enter more units than your category allows and the calculator quietly re-bills you at the correct category, with a note explaining why.

K-Electric slab rates for August 2026

K-Electric is a different animal from the ex-WAPDA companies. It is privately run, it generates and distributes its own power, it serves only Karachi and its adjoining areas, and it sits outside the PITC system that hosts bills for LESCO, MEPCO and the rest — so KE bills live on KE’s own website. What it does share is the price list: KE’s domestic slabs follow the uniform national schedule, the same rates every ex-WAPDA DISCO bills. The latest notification linked on KE’s tariff structure page is SRO 279(I)/2026 of February 2026, which also introduced fixed charges and re-sliced the upper slabs — how that can shift a printed bill is covered further down.

These are the domestic rates the calculator uses, in force for the August 2026 billing cycle:

These rates come from SRO 279(I)/2026, notified on 12 February 2026: the 1–300 unit slabs were left exactly where they were, the 301-and-above slabs were trimmed by roughly Rs 1.5 per unit, and — for the first time — a fixed monthly charge was bolted on top (covered in the next section). The schedule is current as of August 2026; the figures above are verifiable on the official IESCO and FESCO tariff pages and in the SRO itself. A NEPRA review petition against the new fixed charges, filed in March 2026, was still pending in early August, and a further government tariff package was under discussion in late July — so treat the tariff as current but not carved in stone. The complete category-wise schedule, including commercial and industrial rates, is in our K-Electric per unit price guide.

The new fixed monthly charge

SRO 279 added a charge Karachi bills never used to carry: a fixed amount billed per kW of your sanctioned load, every month, whether you use much or little. The rate is set by the slab your month lands in, then multiplied by your sanctioned load.

So a 2 kW unprotected home landing in the 201–300 slab pays 2 × Rs 350 = Rs 700 before tax; a 3 kW home in the same slab pays Rs 1,050. GST is charged on the fixed charge too, so its real cost is about 18% higher again. Lifeline consumers pay no fixed charge at all — just a minimum monthly charge (Rs 75 single-phase, Rs 150 three-phase) that only bites if their energy charge falls below it. Time-of-use homes (5 kW and up) are billed Rs 675 per kW on half their sanctioned load or their measured maximum demand (MDI), whichever is higher. These are the charges the pending NEPRA review petition is contesting, so they may yet be revised.

The landing slab rule — why 201 units cost Rs 1,163 more than 200

Since the subsidy re-targeting, unprotected domestic consumers get no previous-slab benefit. Your whole month is billed at the rate of the slab your total lands in. At 200 units, all 200 are charged at Rs 28.91. At 201 units, all 201 jump to Rs 33.10 — and the fixed charge steps up a slab at the same moment (Rs 300 to Rs 350 per kW).

Feed both numbers into the calculator on a 2 kW load and the totals speak for themselves: 200 units comes to Rs 8,011.56 this month, while 201 units comes to Rs 9,174.77. One extra unit costs you Rs 1,163.21 — part repriced energy, part the stepped-up fixed charge. This cliff repeats at 300, 400, 500, 600 and 700 units, which is why families hovering near a boundary watch their meter in the last week of the reading cycle.

Protected consumers are the exception. They keep the benefit of one previous slab, so a protected home using 200 units pays 100 × Rs 10.54 plus 100 × Rs 13.01 — Rs 2,355 in energy, and Rs 3,907.05 in total on a 2 kW load. That works out to about Rs 19.5 per unit all-in, less than half the unprotected figure for identical usage. Cross 200 units even once, though, and you are billed unprotected for that month and the six-month clock restarts.

Worked example: 300 units, unprotected, August 2026

Here is the full arithmetic behind the number in the first paragraph, using the same assumptions the calculator applies to August 2026 bills: the −Rs 1.9857 per unit quarterly (QTR) credit that runs on June–August bills, the +Rs 0.3364 per unit FPA (May’s fuel adjustment, notified for XW-DISCOs and K-Electric alike on July bills), and electricity duty at 1.5%.

Effective cost: Rs 44.29 per unit. Type 300 into the calculator above with a 2 kW load and you get this exact breakdown, to the paisa. Notice how the charges chain: the fixed charge lands whether you use much or little, duty is charged on the cost of electricity, GST sweeps up the energy, surcharge, duty and fixed charge together, and the FPA line attracts duty and GST all over again. Our taxes on electricity bills guide walks through every one of these levies in detail.

How to calculate your K-Electric bill by hand

Prefer to do the math yourself? Eight steps, rounding each line to two decimal places the way printed bills do. Worked here for 500 units, unprotected, on a 2 kW connection:

1. Find your landing slab and multiply. 500 units lands in the 401–500 slab: 500 × Rs 38.95 = Rs 19,475.00.
2. Add the FC surcharge. 500 × Rs 3.23 = Rs 1,615.00. (Lifeline consumers skip this.)
3. Apply the current QTR adjustment. 500 × −Rs 1.9857 = −Rs 992.85. Running total, the “cost of electricity”: 19,475.00 + 1,615.00 − 992.85 = Rs 20,097.15.
4. Add the fixed charge. The 401–500 slab is billed at Rs 500 per kW of sanctioned load: 2 kW × Rs 500 = Rs 1,000.00. (Lifeline consumers pay no fixed charge.)
5. Add electricity duty. 1.5% × 20,097.15 = Rs 301.46. Duty is a provincial levy, so the exact percentage can vary; 1.5% is the standard domestic assumption for Sindh.
6. Add GST. 18% × (20,097.15 + 301.46 + 1,000.00) = Rs 3,851.75. GST sweeps up the fixed charge as well as the energy, surcharge and duty.
7. Add the month’s FPA with its own duty and GST. 500 × Rs 0.3364 = Rs 168.20, plus Rs 2.52 duty and Rs 30.28 GST. What FPA is and why it changes every month is covered in our FPA guide.
8. Sum everything. 20,097.15 + 1,000.00 + 301.46 + 3,851.75 + 168.20 + 2.52 + 30.28 = Rs 25,451.36.

That total crosses Rs 25,000, so one last check applies: if you are not on FBR’s Active Taxpayers List, Section 235 adds 7.5% advance income tax — Rs 1,908.85 here, taking the bill to Rs 27,360.21. ATL filers pay nothing extra. Miss the due date and 10% stacks on whichever figure applies.

If step 1 already felt like enough math, that is the point of the calculator.

Peak and off-peak: the TOU mode for K-Electric

If your home has a time-of-use meter, slabs stop mattering. Every unit is billed by when you used it. K-Electric’s windows differ from the rest of the country: peak runs 6:30–10:30 PM from April to October and 6:00–10:00 PM from November to March, per KE’s notified schedule. The other 20 hours are off-peak.

The residential rates are Rs 46.85 per peak unit and Rs 34.53 off-peak — a Rs 12.32 gap. SRO 279 cut the off-peak rate by about Rs 5.5 (it used to be Rs 40.03), so moving load out of the evening window now saves noticeably more than it did a year ago. Flip the TOU switch on the calculator and enter both figures from your bill. A household using 150 peak and 350 off-peak units pays Rs 19,113.00 in energy and Rs 24,634.29 in total this month (on the calculator’s default 2 kW load), about Rs 49.3 per effective unit. Shift laundry, ironing and the water pump out of the evening window and the saving shows up immediately; our peak hours guide has the full seasonal tables and load-shifting tactics.

Why your printed KE bill can differ from the estimate

The calculator reproduces the tariff math exactly, but four things on a real bill sit outside any formula:

• The pending fuel adjustment. August bills were still awaiting NEPRA’s decision on the June FCA (about Rs 1.20 per unit was requested; the hearing was held on 29 July and the decision reserved as of early August). The calculator carries the last notified FPA of +Rs 0.3364. If NEPRA approves the new one, your August bill’s FPA line will be higher — the swing is roughly Rs 0.86 per unit net, since the old adjustment drops off as the new one lands.
• The quarterly credit has an expiry date. The −Rs 1.9857 credit applies to June, July and August 2026 bills only, and prepaid or incremental-package consumers don’t get it. September estimates will change when NEPRA notifies the next quarter’s adjustment.
• Meter rent and other line items. The calculator now includes the SRO 279 fixed monthly charge (Rs 200–675 per kW of sanctioned load, set by your landing slab), but it still leaves out small connection-specific items like meter rent and service rent, which can differ by a few hundred rupees. The fixed charge itself is under a NEPRA review petition (filed March 2026), so it may yet be revised — check that your bill’s “Load” figure matches what you entered, since the charge scales directly with it.
• Your own account’s history. Arrears, installment plans, adjustments from a disputed reading, or a reading cycle that ran 33 days instead of 30 can all move the total. A longer cycle records more units, which can push you into a higher landing slab through no fault of your own.

One thing you should never see: the Rs 35 PTV fee. It was abolished in July 2025, and any calculator still adding it is out of date.

The estimate tells you what to expect; the bill itself settles it. You can download your K-Electric duplicate bill free in under a minute, then pay it online without a bank queue. Outside Karachi? Every company’s bill checker is on our all DISCOs hub.

FAQs

How accurate is this K-Electric bill calculator?

It applies the exact consumer-end tariff in force for August 2026 — slab rates, the SRO 279 fixed charge (Rs 200–675 per kW of sanctioned load), the Rs 3.23 FC surcharge, 1.5% duty, 18% GST, the +Rs 0.3364 FPA and the −Rs 1.9857 QTR credit — and rounds each line to two decimals the way printed bills do. Expect it to match your bill’s tariff lines to the rupee. Account-specific items (arrears, installments, meter rent) and any newly notified fuel adjustment are the usual reasons for a gap.

How much is a 300-unit K-Electric bill in August 2026?

Rs 13,286.85 within the due date for an unprotected domestic connection on a 2 kW load, which works out to about Rs 44.3 per unit. After the due date it becomes Rs 14,615.54. A protected consumer cannot reach 300 units without losing protected status for the month, so the same figure applies.

What is the K-Electric per unit price in 2026?

There is no single price. Domestic rates run from Rs 3.95 (lifeline, up to 50 units) to Rs 47.20 (above 700 units), and your whole month bills at one slab if you are unprotected. With the fixed charge, surcharge, duty, GST and adjustments included, a Karachi household using 200 to 500 units lands between roughly Rs 40 and Rs 51 per effective unit. The calculator shows your effective rate at the bottom of every result.

What are K-Electric’s peak hours?

6:30 PM to 10:30 PM from April to October, and 6:00 PM to 10:00 PM from November to March. Peak pricing only applies if you have a time-of-use meter, and the rest of the country follows a different seasonal table, so double-check if you have recently moved to Karachi.

Why did my KE bill jump so much after 200 units?

Crossing a slab boundary reprices every unit, not just the extra ones, and the fixed charge steps up a slab too. At 200 units you pay Rs 28.91 on all 200; at 201 units you pay Rs 33.10 on all 201 — Rs 8,011.56 versus Rs 9,174.77 on this month’s adjustments (2 kW load). If crossing 200 also cost you protected status, the jump is larger still, and it takes six months under 200 units to earn the status back.

Is the PTV fee still charged on K-Electric bills?

No. The Rs 35 TV licence fee was abolished in July 2025 and no longer appears on any KE or DISCO bill. This calculator has never included it.

Does the calculator include income tax and the late payment surcharge?

Both. If your estimate exceeds Rs 25,000, a toggle appears for the 7.5% Section 235 advance income tax, which applies only if you are not on FBR’s Active Taxpayers List. The after-due-date row adds the standard 10% late payment surcharge automatically.