WASA Water Bill Calculator – Pakistan 2026

Estimate your monthly water bill for Lahore, Karachi, Islamabad, and other Pakistani cities. Includes domestic and commercial rates, sewerage surcharge, and GST. Updated with the latest 2026 water tariffs.

📋 Water Bill Calculator

Select City / WASA

Connection Type

Monthly Water Consumption (m³)

📊 Water Tariff Guide (2026)

Water rates vary by city and consumer type. Below are the latest notified rates for major WASAs.

City / WASA	Domestic Rate (per m³)	Commercial Rate (per m³)	Fixed Charge (Domestic)
Lahore (WASA)	Rs 35	Rs 70	Rs 150
Karachi (KWSB)	Rs 40	Rs 80	Rs 200
Islamabad (CWD)	Rs 38	Rs 75	Rs 180
Other Punjab Cities	Rs 30	Rs 60	Rs 100

Sewerage surcharge: Usually 15-20% of water charges. GST: 16% applied on total (water + fixed + sewerage).

📌 Real Examples

Example 1 (Lahore Domestic): 25 m³ → Energy = 25×35 = Rs 875 + fixed 150 = Rs 1025 + sewerage (15%) Rs 154 = Rs 1179 + GST 16% = Rs 1,368 total.

Example 2 (Karachi Commercial): 50 m³ → 50×80 = Rs 4000 + fixed 200 = Rs 4200 + sewerage 20% Rs 840 = Rs 5040 + GST 16% = Rs 5,846 total.

💡 How to Reduce Your Water Bill

Fix leaking taps and pipes – a dripping tap wastes 15+ gallons per day.
Install a water meter – you pay only for what you use.
Use rainwater harvesting – collect rain for gardening and car washing.
Take shorter showers – every minute less saves 5-10 gallons.
Reuse RO waste water – for cleaning floors and utensils.

Frequently Asked Questions

How is my WASA bill calculated?

Water bill = (consumption × per-unit rate) + fixed charges + sewerage surcharge + GST. Sewerage is typically 15-20% of water charges.

Can I pay my WASA bill online?

Yes, most WASAs have online portals. You can also pay via JazzCash, Easypaisa, or bank apps using your reference number.

What is the penalty for late payment?

Late payment surcharge is usually 5-10% per month, depending on the city WASA.

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