The optional pro-rata method applies only to eligible employees aged 18 or over whose basic weekly wage does not exceed €229.44.
Enter basic salary before tax. The SSC estimate uses 52 equal weekly pay periods.
Optional. Included in taxable income but excluded from the basic weekly wage used for this SSC estimate.
Estimate only; actual Malta tax and Social Security deductions depend on eligibility, payroll timing and individual circumstances.
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ARMS Malta Bill Calculator
The ARMS Malta Bill Calculator estimates household electricity and water costs from the consumption figures you enter. It separates usage charges from service charges, helping you understand how the estimated total is formed.
Enter the billing period, registered persons, electricity consumption and water consumption. Select the electricity service and choose whether water charges should be included.
The result shows electricity and water subtotals, an estimated combined bill and an average monthly cost. It is intended for personal planning and does not represent an official ARMS invoice.
What Is the ARMS Malta Bill Calculator?
This calculator is designed for households that want to review electricity and water costs together. Instead of showing only one total, it presents the main components of the estimate separately.
The calculation includes:
- Electricity consumption charges
- Electricity service charge
- Water first-tier charge
- Water second-tier charge, when applicable
- Water service charge
- Combined estimated ARMS bill
- Average monthly cost
This breakdown can make unusual consumption easier to identify. If the electricity subtotal is responsible for most of the estimate, you can review that part separately with the Malta Electricity Bill Calculator.
Information You Need to Enter
Start with the billing period in months. The calculator adjusts supported consumption bands and service charges according to this period.
Enter the number of registered persons on the utility account. This should reflect the official account information, which may not always be the same as the number of people temporarily staying at the property.
Electricity consumption must be entered in kilowatt-hours, or kWh. Water consumption is entered in cubic metres, or m³.
Select either single-phase or three-phase electricity service. The selected service influences the electricity service charge.
Finally, choose whether water charges should be included. Selecting “No” allows the calculator to display an electricity-only estimate without requiring a separate water calculation.
How Electricity Costs Are Calculated
Electricity consumption is allocated across the supported tariff bands for the selected billing period. This means the calculator does not necessarily charge every kWh at the same rate.
It calculates the consumption cost first and then adds the appropriate electricity service charge.
Electricity subtotal = Consumption charges + Electricity service charge
The service charge is connected to the selected electricity service and billing period. It is not calculated by multiplying electricity consumption by a per-unit rate.
Users who want to focus on water tiers, registered residents and water service costs can compare the water portion with the Malta Water Bill Calculator.
How Water Costs Are Calculated
The water estimate considers the billing period, registered persons and entered water consumption. Consumption is assigned to the first tier before any remaining units move into the second tier.
Water subtotal = First-tier charge + Second-tier charge + Water service charge
A second-tier result of €0.00 does not mean that water is free. It means all entered consumption remained inside the first tier used by the calculator.
The service charge is then added separately. This is why multiplying total cubic metres by the first-tier rate alone may not reproduce the complete water subtotal.
Step-by-Step Example Using the Displayed Values
The screenshot shows these inputs:
- Billing period: 6 months
- Registered persons: 3
- Electricity consumption: 1,800 kWh
- Water consumption: 45 m³
- Electricity service: Single phase
- Include water charges: Yes
Step 1: Calculate Electricity Consumption Charges
For this six-month example, the calculator allocates the first 1,000 kWh at approximately €0.1047 per kWh:
1,000 kWh × €0.1047 = €104.70
The remaining consumption is:
1,800 kWh − 1,000 kWh = 800 kWh
The calculator applies approximately €0.1298 per kWh to those 800 units:
800 kWh × €0.1298 = €103.84
Add both consumption amounts:
€104.70 + €103.84 = €208.54
The estimated electricity consumption charge is €208.54.
Step 2: Add the Electricity Service Charge
The selected single-phase service adds a six-month charge of €32.50:
€208.54 + €32.50 = €241.04
The electricity subtotal displayed by the calculator is €241.04.
Step 3: Calculate the Water First Tier
The example includes 45 m³ of water consumption for three registered persons over six months. All 45 m³ remains within the calculator’s first tier.
The calculation uses approximately €1.3965 per m³:
45 m³ × €1.3965 = €62.8425
Rounded to two decimal places:
Water first-tier charge = €62.84
No entered consumption moves into the second tier, so the second-tier result is €0.00.
Step 4: Add the Water Service Charge
The displayed six-month water service charge is €29.50:
€62.84 + €29.50 = €92.34
The estimated water subtotal is therefore €92.34.
Step 5: Calculate the Combined Bill
Add the electricity and water subtotals:
€241.04 + €92.34 = €333.38
The calculator displays an estimated ARMS bill of €333.38.
Step 6: Calculate the Monthly Average
Divide the combined total by the six-month billing period:
€333.38 ÷ 6 = €55.5633
Rounded to two decimal places, the average monthly cost is €55.56.
This figure is useful for budgeting, but it does not mean that an official invoice of €55.56 will be issued every month.
When to Use a Broader Bill Estimate
An electricity-and-water calculation does not include every household expense. Rent, internet, gas and other services remain separate.
The Bill Calculator Malta is useful when you want another view of household bill planning rather than a detailed electricity-and-water split.
Keep in mind that two properties with similar consumption can still produce different results if their service type, tariff classification, registered persons or billing periods differ.
Why Your Official Bill May Be Different
The calculator relies entirely on the information entered. An incorrect period, estimated meter figure or wrong service selection can materially change the result.
An official account may also contain:
- Eco-reduction treatment
- Photovoltaic credits
- Previous balances
- Rebates or benefits
- Meter-reading adjustments
- Late-payment amounts
- Account-specific corrections
- Other charges not included here
Use actual readings covering the same period whenever possible. Do not combine electricity consumption from one period with water consumption from another.
The number of registered persons should also be checked against the account. Household occupancy alone does not confirm the official registration used for billing.
Current regulated tariff information can be reviewed through ARMS. Compare the estimate with current published information and the official account before making an important payment decision.
Frequently Asked Questions
Q:1 Is this an official ARMS calculator?
A: No. It is an independent planning tool and does not access or update an ARMS utility account.
Q:2 Can I calculate electricity without water?
A: Yes. Select “No” under the option for including water charges.
Q:3 Why are registered persons required?
A: The number of registered persons can affect the water allowance applied during the selected period.
Q:4 Does the calculator include service charges?
A: Yes. Electricity and water service charges are shown separately in the result.
Q:5 Why is the water second tier €0.00?
A: In the displayed example, all 45 m³ remains within the first water tier used by the calculator.
Q:6 Will my official bill equal €333.38?
A: Not necessarily. Actual bills may include credits, adjustments, rebates, previous balances and account-specific items.