Addis Ababa & Ethiopia Water Bill Calculator 2026 (AAWSA Volumetric Tariffs)
Calculate your monthly water utility bill in Addis Ababa and Ethiopia with official AAWSA progressive cubic meter (m³) tariffs, wastewater surcharge, and meter rent in Birr (ETB).
Water Bill Calculator Ethiopia
Methodology
Water utility billing in Addis Ababa is administered by the Addis Ababa Water and Sewerage Authority (AAWSA - የአዲስ አበባ ውሃና ፍሳሽ ባለሥልጣን) and regional water boards. Residential water billing follows progressive volumetric stepped-blocks: Block 1: 0–7 m³ (heavily subsidized lifeline consumption), Block 2: 8–20 m³, Block 3: 21–40 m³, and Block 4: over 40 m³. Commercial/non-domestic customers are billed under higher non-domestic volumetric rates. In addition to clean water consumption charges, water bills include a Sewerage/Wastewater Treatment Surcharge (typically 25% to 40% of the volumetric water charge for connected network customers) and a monthly meter rental and maintenance charge.
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User-provided inputs
This calculator uses only the values you enter. It does not automatically apply tax law, statutory deductions, lender fees, or live exchange rates.
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Formula basis
The formula is shown openly and no country rate is inserted automatically.
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Your estimate
AfricalHub is an independent private platform not affiliated with any government agency. Calculations are for educational planning only. Verify official filings with the relevant revenue authority or a qualified professional.
AAWSA Official Progressive Water Tariff Schedule
| Consumption Block (Cubic Meters - m³) | Rate per m³ (ETB) | Sewerage Treatment Charge | Category |
|---|---|---|---|
| Block 1: 0 – 7 m³ (Lifeline) | 15.00 ETB / m³ | 25% of water cost | Domestic / Household |
| Block 2: 8 – 20 m³ | 28.00 ETB / m³ | 25% of water cost | Domestic / Household |
| Block 3: 21 – 40 m³ | 42.00 ETB / m³ | 25% of water cost | Domestic / Household |
| Block 4: Over 40 m³ | 58.00 ETB / m³ | 25% of water cost | Domestic / Household |
| Commercial & Industrial | 65.00 ETB / m³ | 40% of water cost | Non-Domestic |
| Fixed Meter Maintenance | 25.00 ETB / month | N/A | All Customers |
Sources
User-provided inputs
This calculator uses only the values you enter. It does not automatically apply tax law, statutory deductions, lender fees, or live exchange rates.
Frequently asked questions
How is the water bill calculated in Addis Ababa (AAWSA)?
Your monthly water bill equals the clean water charge across progressive cubic meter (m³) tiers, plus a 25% to 40% wastewater treatment surcharge (if connected to sewerage), plus a fixed monthly meter service and rent charge.
What are the current AAWSA residential water tariff blocks?
Residential block tariffs are: 0–7 m³ (lifeline tier: 15.00 ETB/m³), 8–20 m³ (28.00 ETB/m³), 21–40 m³ (42.00 ETB/m³), and over 40 m³ (58.00 ETB/m³). Commercial non-domestic water is billed at 65.00 ETB/m³.
What is the wastewater or sewerage charge on the water bill?
Customers connected to the municipal sewer line or sanitation service are assessed a sewerage surcharge of 25% of their total volumetric water charge to fund sewer network maintenance.
How do I read my water meter to calculate monthly consumption?
Read the black numbers on your water meter dials. Subtract your previous month meter reading from your current reading. The difference is your monthly consumption in cubic meters (m³ or 1,000 liters).