Bill Says 33 Days? The 30-Day Meter Reading Rule Explained

A bill that covers 33 days is not what the rules allow. NEPRA treats meter readings taken after more than 30 days as a breach and has ordered distribution companies (DISCOs) to correct the bills affected. Whether it cost you money depends on one thing: whether the extra days pushed your units across a slab line, the lifeline limit or the 200-unit protected threshold.

This guide shows you how to count the days on your bill, check the units against the meter snapshot, and decide whether to ask for a correction.

What the rules say about the billing period

A Dawn report on NEPRA's 2023 overbilling inquiry put it plainly: "Under the law, meter readings should be taken for less than 30 days or a maximum of 30 days." An earlier Dawn report from 2021 describes the limit as 30 or 31 days, so expect to see both figures quoted.

The rules DISCOs must follow on meter reading and billing are set out in NEPRA's Consumer Service Manual (CSM). As of November 2026, NEPRA's legal page lists the "Revised/updated Consumer Service Manual (CSM) – November 26, 2025" as the current version. K-Electric's website says NEPRA approved the revised manual for all DISCOs by a letter of the same date.

The full manual is a PDF on NEPRA's website. If you want the exact wording on reading dates, read the meter-reading chapter there yourself rather than relying on clause numbers quoted on social media or unofficial sites.

For rooftop solar users, the NEPRA (Prosumer) Regulations 2026 also define a "billing cycle" as the energy recorded by the meters over a period of thirty days.

Why a few extra days can cost you

On a flat per-unit charge, three extra days simply mean three days more of electricity, which you would have paid for next month anyway. The damage comes from thresholds. Domestic bills are priced in slabs, and two kinds of status depend on staying under a line:

• Protected consumers: households using under 200 units a month for six months.
• Lifeline consumers: in the 2024 case below, the line was 50 units.

If a household normally sits just under one of these lines, a late reading can push a single month over it. That month can then be billed at a higher rate, and for protected consumers it can break the six-month record. The protected consumer checker shows where you stand from six months of units, and the 200-unit rule explainer covers how the status works.

The table below is an illustration, not a NEPRA figure. It shows what the same daily use looks like over different billing periods.

A household using 6.5 units a day stays under 200 on a 30-day bill but crosses it on a 33-day bill. Nothing changed in the house; only the reading date moved.

What NEPRA found when it looked

Late readings in 2023

NEPRA's inquiry into July and August 2023 bills found that 13.76 million domestic consumers had been billed on readings covering more than 30 days, according to Dawn. Of those, 3.2 million were charged a higher slab rate because of the longer period.

A second Dawn report on the inquiry gave a figure of 10.68 million consumers billed for more than 30 days, some beyond 40 days, with over 0.24 million billed for more than 40 days. It also found protected consumers charged upper-slab rates.

The inquiry found another problem: bills where the amount charged did not match the meter snapshot printed on the bill. Some snapshots were "either invisible or deliberately not taken", as reported by Dawn and the Express Tribune.

What NEPRA ordered

According to Business Recorder and Dawn, NEPRA told DISCOs to:

1. Get consumer account data from PITC.
2. Revise inflated bills on a pro-rata basis within one billing cycle.
3. Do this without taking away anyone's protected or lifeline status.
4. Report compliance to NEPRA within 30 days.

Pro-rata here means scaling the units back to a 30-day period. In the illustration above, 215 units over 33 days becomes about 195 units for 30 days.

The Express Tribune reported in early 2024 that only K-Electric was using handheld devices for meter readings, which NEPRA's report saw as more transparent, and that NEPRA directed DISCOs to adopt them. That was a direction, not a confirmation that every DISCO now uses them, so do not assume your reader carries one.

Short readings caused trouble too

Pro-rata can be misused in the other direction. In April to June 2024, Dawn reported, DISCOs took short readings and scaled them up to 30 days. A 27-day reading that should have come to 45 or 46 units became more than 50, and the household lost lifeline status.

In that case lifeline users in the 51 to 100 unit band were billed Rs 10.06 a unit instead of Rs 7.74. Those were the rates in force in mid-2024, not today's; see the current domestic tariff for present rates. NEPRA called the practice a violation of the CSM and ordered the bills corrected within 30 days. The lifeline guide explains who qualifies now.

Not a new problem

In 2021 NEPRA ordered action against staff who took readings beyond 30 or 31 days, after MEPCO billed 52 days in parts of Rahim Yar Khan, according to Dawn.

What the bill should show

In November 2023 NEPRA published a proposed amendment to the CSM that defined the reading fields on a bill:

• Reading Date: the day the meter is read.
• Issue Date: the day the bill is issued.
• Present reading: taken on the reading date.
• Previous reading: taken on last month's reading date.

The proposal also required a printed snapshot of the present reading, including peak and off-peak readings for Time-of-Use meters and export readings for net-metered users.

That was a proposal. Whether those exact definitions made it into the revised 2025 manual should be checked in the CSM PDF on NEPRA's website. Layouts also differ between companies, so match the fields to your own bill. The annotated sample bill shows where each field usually sits.

How to check your own bill

You need the paper bill or a copy from your DISCO's website, and access to your meter.

1. Count the days. Find the reading date and the previous reading date. Some DISCOs print a "days" field; others do not. Count the days between the two dates. If last month's bill is to hand, its reading date should match this month's previous reading date.
2. Check the units. Subtract the previous reading from the present reading. The result should equal the units billed.
3. Check the snapshot. Look at the meter photo on the bill. The figure in the photo should match the present reading printed on the bill. A blank, blurred or missing snapshot is worth noting.
4. Check against your meter. Read your meter today. It should be at or above the present reading on the bill. If your meter shows less than the billed reading, the bill has charged you for units you have not yet used.
5. Compare like with like. Before deciding this month is unusually high, divide each month's units by the days in that bill. A 33-day bill will look higher than a 28-day bill even if daily use is the same.
6. Look for a threshold. If the period is over 30 days, work out the units for 30 days (units divided by days, times 30). If that figure is below a slab line, the lifeline limit or 200 units, while the billed units are above it, the late reading has likely cost you.

If the period was short and the units look higher than the meter difference, the bill may have been scaled up, which is the 2024 problem in reverse.

Common mistakes

• Assuming any bill over 30 days is wrong in rupees. It breaks the reading rule, but the money harm comes when the extra days take you across a slab, lifeline or protected line.
• Skipping the snapshot. NEPRA's own inquiry found mismatched and missing snapshots, so check the photo every month.
• Comparing months without counting days. Units per day is a fairer comparison than units per bill.
• Treating short readings as safe. Scaling a short reading up to 30 days cost some households their lifeline status in 2024.

When to ask for a correction

Ask your DISCO for a pro-rata correction if:

• the period is over 30 days and the units crossed a slab line, the lifeline limit or 200 units;
• a short reading was scaled up and pushed you over a threshold;
• the snapshot is missing, unreadable or does not match the printed reading; or
• the present reading on the bill is higher than your meter shows.

Keep a photo of your meter with the date, and copies of this bill and the previous one. Ask in writing that any correction keeps your protected or lifeline status, as NEPRA required in its 2023 order. No deadline for raising a reading complaint has been confirmed here, so raise it as soon as you spot the problem and check the timing with your DISCO.

The filing steps and escalation route are in the overbilling complaint guide, and the complaint letter gives you a ready-to-send letter in English or Urdu.

What to do next

1. Open your current bill on the bill checker and note the reading date, previous reading date and units.
2. Count the days and work out units per day, then units for 30 days.
3. Compare the snapshot with the printed reading and photograph your meter.
4. Run your last six months through the protected consumer checker.
5. If a late or scaled reading pushed you over a line, file a correction request using the complaint letter.

Sources

• NEPRA – Legal (Manuals list)
• NEPRA – Consumer Service Manual Revised 2025 (PDF)
• NEPRA – Proposed Amendment in CSM 2021 (Nov 2023)
• NEPRA – Prosumer Regulations 2026 (SRO 251(I)/2026)
• K-Electric – NEPRA Consumer Services Manual
• Dawn – Power firms bleeding users dry through inflated bills
• Dawn – 'Criminal activity': Raza Rabbani wants action against Discos
• Dawn – Millions subjected to inflated bills in April-June: Nepra
• Dawn – Nepra orders punitive action against firms for overbilling
• Express Tribune – NEPRA report exposes overbilling scandal
• Express Tribune – NEPRA orders inquiry into power rate hike demand
• Business Recorder – Overbilling in violation of Nepra Act