Singapore Utility Bills 2026: Average Electricity, Water & Gas Costs by Household Type

What Singapore Households Pay for Utilities

Utilities in Singapore — electricity, water, gas, and broadband — are essential monthly expenses that vary meaningfully by flat type, household size, and consumption habits. Unlike some expenses, utility bills are directly manageable: understanding what drives costs is the first step to controlling them.

This article provides realistic estimates for each utility category based on publicly available data and Singapore market rates as of early 2026.

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Electricity

Tariff and Market Structure

SP Group owns and operates Singapore's electricity grid. Since the Open Electricity Market (OEM) was fully rolled out in 2019, households can choose to buy electricity from competing retailers rather than defaulting to SP Group's regulated tariff.

SP Group's regulated tariff is revised quarterly. As of recent quarters, the indicative tariff has been approximately $0.30–$0.35 per kWh including GST. This is the benchmark — many OEM retailers offer fixed or discounted rates relative to this tariff.

Estimated Monthly Electricity Bills by Flat Type

A key variable is air-conditioning. The estimates below assume moderate aircon use (roughly 6–8 hours/day in the bedroom, not running all day throughout the home).

Flat Type	Estimated Monthly kWh	Estimated Monthly Bill
1-room / 2-room HDB	100–200 kWh	$30–$65
3-room HDB	250–350 kWh	$75–$120
4-room HDB	350–450 kWh	$100–$155
5-room / executive HDB	450–600 kWh	$135–$205
Private condominium (2BR)	400–600 kWh	$120–$205
Landed property	800–1,500 kWh+	$240–$500+

What Drives the Bill Up

A single 1 HP split aircon running 8 hours per day for 30 days uses approximately 150–200 kWh on its own. A household with two aircon units running simultaneously can see this double. Other high-draw appliances:

• Storage water heater (left on standby): 50–100 kWh/month
• Refrigerator (older model): 40–80 kWh/month
• Clothes dryer (2–3 cycles/week): 30–60 kWh/month

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Water

PUB Tariff Structure

Water in Singapore is priced in tiers to encourage conservation, plus a water conservation tax and waterborne fee.

Water tariff as at 2026 (domestic use):

Consumption Tier	Volumetric Rate
First 40 cubic metres (m³)	$1.21/m³
Next 40 m³ (40.01–80 m³)	$1.52/m³
Above 80 m³	$2.14/m³

In addition, PUB charges a Water Conservation Tax (30% of the water tariff) and a Waterborne Fee of approximately $0.58/m³ to cover the cost of used water treatment. These add roughly 40–50% to the base water cost.

Realistic Monthly Water Bills

A typical Singapore family of 3–4 people in an HDB flat uses approximately 12–20 m³ per month.

Flat Type / Household	Approx. Usage (m³/month)	Estimated Monthly Bill (all-in)
1–2 person household	5–10 m³	$15–$30
3-room HDB (family of 3)	12–16 m³	$38–$52
4-room HDB (family of 4)	15–20 m³	$48–$65
5-room HDB (family of 4–5)	18–25 m³	$58–$82

Heavy water users — large families, households with frequent laundry, or those with swimming pools — can exceed the 40 m³ threshold and face the higher-tier pricing.

Water-saving tip: PUB recommends installing water-efficient fittings (tap aerators, dual-flush cisterns, efficient showerheads) certified under the Water Efficiency Labelling Scheme (WELS). These can reduce household water use by 20–30%.

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Gas (Piped and Cylinder)

Piped Town Gas

Households connected to Singapore's piped town gas network (supplied by City Gas, a subsidiary of City Energy) use gas primarily for cooking. Town gas is charged per kWh of energy delivered.

Typical monthly gas cost for a cooking household on piped gas: $15–$40/month, depending on cooking frequency and method. Households that cook daily with multiple burners or use gas for water heating spend toward the higher end.

LPG Cylinder Gas

Households in older estates or HDB blocks not connected to the piped gas network use liquefied petroleum gas (LPG) cylinders for cooking.

• A standard LPG cylinder costs approximately $30–$55 per cylinder delivered.
• An average cooking household uses one cylinder every 5–10 weeks.
• Estimated monthly LPG cost: $20–$45/month.

Households that do not cook at home, or cook infrequently, may use one cylinder every 3–4 months and pay as little as $8–$15/month amortised.

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U-Save Rebates

The government's GST Voucher — U-Save scheme provides quarterly rebates credited directly to SP Group utility accounts for eligible HDB households. This reduces the net utility bill substantially for 1- and 2-room flat residents.

Approximate annual U-Save rebate amounts (subject to Budget changes):

Flat Type	Approximate Annual Rebate
1-room and 2-room	up to ~$950 (varies by year and household income)
3-room	~$570
4-room	~$380
5-room	~$285
Executive	~$190

These rebates are paid quarterly, so a 4-room flat household receives roughly $95 per quarter credited against their SP bill — offsetting approximately one month's electricity cost.

Eligibility is based on property ownership (you must own the HDB flat you live in) and household income assessed via IRAS. Households earning above certain thresholds or who own multiple properties may be excluded. Check eligibility annually on the GST Voucher portal.

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Internet and Mobile

While not a utility in the traditional sense, broadband and mobile are near-universal fixed monthly costs for Singapore households.

Fibre broadband (home):

• Entry-level 500 Mbps plan: approximately $29–$39/month
• 1 Gbps plan: approximately $29–$49/month depending on provider and contract length
• 10 Gbps plans (available from major providers): $49–$69/month

Singapore fibre coverage is near-universal across HDB and private residential buildings. Providers include Singtel, StarHub, M1, ViewQwest, and MyRepublic.

Mobile (SIM-only):

• Basic data plan (20–50 GB): $10–$20/month
• Mid-tier plan (50–100 GB): $18–$30/month
• Unlimited data plans: $25–$45/month

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Total Monthly Utilities Summary

Household Type	Electricity	Water	Gas	Broadband	Total Estimate
3-room HDB (family of 3)	$90–$120	$38–$52	$20–$35	$29–$39	$177–$246
4-room HDB (family of 4)	$110–$155	$48–$65	$25–$40	$29–$39	$212–$299
5-room HDB (family of 5)	$135–$205	$58–$82	$30–$45	$29–$49	$252–$381

After U-Save rebates are applied (e.g., $95/quarter for a 4-room flat), the net monthly utility cost reduces by approximately $30.

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Practical Ways to Reduce Your Utility Bill

1. Set your aircon to 25°C or higher. Each degree lower increases energy consumption by approximately 10%. Use the timer function so the unit shuts off while you sleep.
2. Service your aircon annually. A dirty filter and coil can increase energy use by 20–30% and reduce cooling efficiency.
3. Switch electricity retailers. Compare plans on the EMA's OpenElectricityMarket portal. Some retailers offer discounts of 5–10% below the regulated tariff on fixed-price plans.
4. Install WELS-rated water fittings. A 3-tick rated showerhead uses roughly 6 litres per minute versus 12+ litres for an unrated fixture.
5. Unplug appliances on standby. Standby power consumption across a household can add 10–30 kWh/month for no productive use.
6. Upgrade your refrigerator. Inverter compressor models carry a 4-tick energy rating and typically use 30–40% less electricity than older non-inverter models.

Use the Singapore Wealth Calculator to understand how your utility costs fit within your broader household budget picture.