In Saudi Arabia, paying your utility bills is part of everyday life. However, many residents are still unsure how their water and sewage bill charges are calculated. Whether you’re a tenant, property owner, or just trying to manage your household budget better—understanding these charges is crucial.
In this article, we’ll walk you step-by-step through the process of calculating your water and sewage bills in Saudi Arabia, based on actual practices from the National Water Company (NWC).
How is Water Consumption Calculated?
Your monthly water bill depends on how many cubic meters (m³) of water you consume. Water usage is measured through your building’s meter and charged using a tiered rate system. That means the more water you use, the higher the cost per cubic meter.
Example Calculation
Let’s say your household consumed 30 m³ of water this month. The National Water Company charges based on usage slabs (for example, 1–15 m³ at one rate, 16–30 m³ at a higher rate, etc.).
To calculate:
- Find your monthly usage in m³
- Multiply each slab’s usage by its rate
- Add the totals for your final water charge
What About Sanitary and Sewage Charges?
If your area has a connected sewage system (sanitary drainage service), then you’ll be charged a fixed percentage based on your water usage.
Sanitary/Sewage Charges = 50% of the total water bill
So, if your total water bill is SAR 100, your sanitary drainage charge will be SAR 50. This is automatically added to your invoice by NWC if you live in an area with sewage service.
Sample Breakdown of Total Bill
Let’s break it down in a simple table:
| Charge Type | Amount (SAR) | Notes |
| Water Usage Bill | 100 | Based on consumption (m³) |
| Sewage Charges | 50 | 50% of water usage cost |
| Total Bill | 150 | Final amount payable |
This formula makes it easier for you to estimate your bill every month.
How to Know If You Have Sewage Services?
You will only be charged for sanitary drainage if your area is connected to the official sewage network. To check:
- Visit the National Water Company portal or app
- Enter your account number or building details
- View the full bill details with breakdown
If the sewage service is not available, you’ll only be charged for water usage.
How to Lower Your Water and Sewage Bill
Controlling your water usage helps lower both water and sewage bill, since one directly affects the other.
Here are some smart tips:
Fix Leaks Quickly: Even small drips can raise your bill
Install Water-Saving Devices: Reduce usage in toilets, faucets, showers
Avoid Overwashing Cars/Yards: Use buckets instead of free-flow hoses
Monitor Your Usage Monthly: Use the NWC app for live tracking
Why It Matters in Saudi Arabia
Saudi Arabia is one of the world’s driest countries and heavily depends on desalinated water, which is expensive to produce. That’s why the government has taken steps to:
- Reduce water wastage
- Improve sewage infrastructure
- Introduce fair usage-based billing
Your monthly water and sewage bill not only reflects your personal consumption but also supports national sustainability goals under Vision 2030.
Final Thoughts
Calculating your water and sewage bill in Saudi Arabia is simpler than it looks. Just follow this basic rule:
Water Bill + (50% of Water Bill for Sanitary) = Total Payable
By understanding this breakdown and controlling your water use, you can avoid surprise bills and contribute to water conservation in the Kingdom.
