If you want a fast, simple, and reliable way to pay your water bill, the Nairobi Water Paybill option remains the most convenient. The official payment method is the Nairobi Water and Sewerage Company Paybill, and thousands of Nairobi residents use it every month for quick and secure transactions.
This guide gives you everything you need—how to pay, the correct Paybill number, charges, common errors, and FAQs.
What Is Nairobi Water Paybill?
Nairobi Water Paybill is the official mobile payment method that allows customers of the Nairobi City Water and Sewerage Company (NCWSC) to pay water bills using M-Pesa.
It is fast, available 24/7, and automatically updates your account once payment is processed.
Official Nairobi Water and Sewerage Company Paybill Number
Nairobi Water Paybill Number: 444400
This is the only official Paybill issued by the Nairobi Water and Sewerage Company.
Any other Paybill claiming to be for Nairobi Water should be ignored to avoid fraud or misdirected payments.
How to Pay Your Bill Using Nairobi Water Paybill
Paying your bill using the Nairobi Water and Sewerage Company Paybill is simple. Follow these steps:
Step-by-Step M-Pesa Procedure
- Open the M-Pesa app or SIM Toolkit.
- Select Lipa na M-Pesa.
- Choose Paybill.
- Enter Business Number: 444400.
- Enter Account Number – this is your Nairobi Water customer account number (e.g., 123456).
- Enter the Amount you wish to pay.
- Enter your M-Pesa PIN.
- Confirm and submit.
You will receive a confirmation SMS from both M-Pesa and Nairobi Water.
Where to Find Your Nairobi Water Account Number
Your account number appears on:
- Your printed or emailed water bill
- Your NCWSC e-bill SMS notification
- Your online account, if you check your bill through the Nairobi Water Portal
This number is essential because it ensures your payment reflects correctly.
How to Confirm Your Nairobi Water Bill Balance
If you want to check how much you owe before paying:
USSD Method
Dial *888#
Follow the prompts to view your bill, check history, or confirm payments.
SMS Method
Send your account number to 20557.
You’ll receive your current bill and outstanding balance.
Online Portal
Visit the Nairobi Water e-billing portal and log in using your account details.
Benefits of Paying Through Nairobi Water Paybill
1. Fast and automatic updates
Payments reflect almost instantly, reducing the chances of disconnection due to delays.
2. Safe and secure
You don’t need to visit offices or deal with cash. Everything happens inside the M-Pesa ecosystem.
3. Available 24/7
Whether it’s late at night or a public holiday, you can still pay your water bill.
4. Convenience
You can pay from anywhere in Kenya—even if you’re outside Nairobi.
Nairobi Water Paybill Charges
The Paybill charges depend on the amount you pay. Typical M-Pesa transaction fees range between KSh 10 and KSh 34 for most bill payments.
You can always check updated charges inside the M-Pesa app before confirming payment.
Common Errors When Paying Through Nairobi Water Paybill (And How to Fix Them)
1. Wrong account number
If you mistype your account number, the payment may not reflect.
Fix: Contact Nairobi Water customer service with the M-Pesa confirmation message.
2. Payment not reflecting immediately
Sometimes there may be a delay of a few minutes.
Fix: Check via *888# or contact support if not updated after 2–3 hours.
3. Paying to the wrong Paybill
Always confirm the Paybill is 444400.
Fix: Reach Safaricom customer care quickly—refunds may be possible under certain conditions.
4. Using an old or inactive account number
If you recently moved or changed accounts, ensure you use the latest one on your bill.
Alternative Payment Methods (Besides Paybill)
Although the Nairobi Water Paybill is the most popular method, other payment options are available:
- Bank Payments (Co-op Bank, Equity, KCB, etc.)
- Airtel Money
- NCWSC offices for cash or card payments
- Partner payment agents
Still, Paybill remains the most efficient option for most households.
How to Get an Online Receipt for Nairobi Water Payments
If you need a receipt for records or reimbursement:
- Visit the Nairobi Water portal.
- Log in using your account details.
- Check the Payment History section.
- Download or screenshot your receipt.
Alternatively, you can keep your M-Pesa confirmation SMS as proof of payment.
Frequently Asked Questions (FAQ)
1. What is the official Nairobi Water Paybill number?
The official Paybill number is 444400.
2. How do I enter my account number?
Use the exact number shown on your water bill (e.g., 123456).
3. Can I pay for someone else?
Yes. Just use their account number when making the payment.
4. What happens if my payment fails?
You will get an error message, and the money will not be deducted. If deducted, contact Safaricom or Nairobi Water immediately.
5. How long does it take for payment to reflect?
Usually instant, but can take up to a few minutes during peak hours.
6. Can I pay my bill before I receive an SMS reminder?
Yes. You can check your balance anytime via *888#.
Final Thoughts
The Nairobi Water Paybill (Paybill number 444400) is the fastest, safest, and most convenient method for paying your water bills. Whether you’re at home, at work, or traveling, you can easily clear your bill through the Nairobi Water and Sewerage Company Paybill system in seconds.
By following the steps in this guide, you can avoid long queues, eliminate late payments, and ensure your water supply remains uninterrupted.
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Vincent Nyagaka is the founder of Chweya, where he breaks down complex financial topics into simple insights. A trader since 2015, he uses his market experience to help readers better understand investing, trading, and personal finance.
