How Much Are Average Monthly Energy Bills in the UK?

Quick links:

• What is the Energy Price Cap?
• Average electric & gas bill by household size
• What are you actually paying for? A breakdown of your energy bill
• The six key factors that shape your final bill
• Seasonal swings and ‘hidden’ costs
• How to reduce your energy bills
• Take control of your home energy

According to Ofgem, a 2-3 bedroom family home in the UK uses around 11,500 kWh of gas and 2,700 kWh of electricity per year.

On a standard tariff with British Gas, for example, this equates to around £1,719.45 per year or £143.29 per month paid via direct debit. This is for average household usage on a standard energy deal, where you pay for what you use, rather than an Unlimited Energy deal (we’ll explore those later).

These figures vary, so keep reading to get a better idea about how much your energy bills will be. We’ll cover how the Energy Price Cap works, how much an average household pays for utilities, and how to reduce your energy bills.

The Energy Price Cap is the maximum a utility company can charge you (per unit and standing charges) per year on a standard variable tariff. It changes every three months in line with the wholesale energy prices.

From 1 April to 30 June 2026, the energy price cap is set at £1,641 per year for a typical household that uses electricity and gas and pays by Direct Debit.

See our Energy Price Cap guide for the most up-to-date figures.

Your household bills are covered by the price cap if you pay for your electricity and gas by:

• Standard credit (payment made when you get your electricity and gas bill)
• direct debit
• Prepayment meter
• Economy 7 (E7) meter

The Energy Price Cap covers unit price and standing charges, so it limits what you can be charged per unit of energy, but it doesn’t limit your actual bill. The cap is often communicated using an ‘average’ figure to make it easy to understand, but your actual bill will vary and could be higher or lower than the headline annual average bill for a few reasons:

You can’t know your exact utility costs until you set up an account, but looking at the average for a household your size is a helpful way to plan your budget.

Costs will vary depending on your tariff (i.e. price per kWh and standing charges), your payment method (e.g. direct debit), where you live, and who supplies your energy.

The figures below show the average annual and monthly bill (paid by direct debit)

(Based on the April 2026 price cap rates)

1️⃣ Average energy bills for a one-bedroom flat

For a one-bedroom flat with 1–2 people, the average annual usage is 7,500 kWh for gas and 1,800 kWh for electricity.

When paying by Direct Debit, the:

• Average yearly cost is £1,290.38
• Average monthly cost is £107.53

For a property with only electricity, this annual bill will likely be the most expensive, as the per-unit cost is higher and electricity is less economical for heating and water.

3️⃣ Average energy bills for a three-bedroom home

For a three-bed house, the average annual usage is 11,500 kWh for gas and 2,700 kWh for electricity. This is an average annual cost (by direct debit) of £1,719– that’s £143.25 per month.

4️⃣ Average energy bills for a four-bedroom home

For a larger home with four or more bedrooms, the average annual usage is 17,000 kWh for gas and 4,100 kWh for electricity. This works out as an average yearly cost of £2,427.37 when paying by direct debit. That’s a monthly average cost of £202.28.

All of these figures are based on averages, both in price per unit and in usage. If you use more, you pay more.

The average energy bill for a larger home is above the Energy Price Cap. That’s because the Energy Price Cap dictates individual unit price and standing charges, so if you use more units than average, you’ll still end up paying more, which could easily go above the cap when you have a big home with high usage.

An energy bill for a property with both gas and electricity covers:

• The unit rate for electricity (cost per kWh)
• The unit rate for gas (cost per kWh)
• Daily standing charge for electricity (a fixed fee)
• Daily standing charge for gas (a fixed fee)

Your bill isn’t just to cover the actual energy costs. You pay your supplier to transport the energy to you, to manage the grid, to pay their staff, and to provide customer service. You also pay 5% VAT on domestic energy bills.

Is electricity or gas more expensive?

Electricity is more expensive per unit, but homes typically use more gas. For example, the table below shows a one-bedroom apartment using Ofgem's average annual usage of 7,500 kWh of gas and 1,800 kWh of electricity.

At the April to June 2026 price cap rates, the average gas usage cost is £430.50 and the average electricity usage cost is £444.06. Because the standing charge is much higher for electricity, the overall annual electricity cost is higher.

Other variations can impact this, such as what fuel you use for each purpose. Using electricity to heat your home or water, for example, can be very expensive. It all depends on your usage and your tariff.

We’ve explored the basics of property size and usage, but what else impacts your final bill? Here are six key factors to consider:

📍 Your location

Standing charges and unit rates aren’t the same everywhere in the UK—they vary by region. Factors like transport costs, wages, population density, and even tricky terrain all play a part.

According to Ofgem data, the North Wales and Mersey regions have the highest average electricity bills. Southern Scotland pays the least for electricity on average (as of April 2026).

⚡️ Your home’s energy efficiency

Every property has an EPC (Energy Performance Certificate), which gives your home a rating from A (best) to G (worst). This tells you how energy-efficient your home is and covers things like insulation, heating systems, CO2 emissions, and lighting.

The better the EPC rating, the easier it is to save energy and, therefore, keep your energy costs low.

You can find your property’s EPC on the government website, and learn more, including how to improve your rating, in our EPC guide.

🏡 Your household’s lifestyle

This is where energy bills can vary the most– and also how you can make the best energy savings. How you and your family use gas and electricity will directly affect your bills, even with the price cap in place. For example, an average washing machine costs

Every appliance should have an energy rating, from A to G. This tells you how much energy that appliance uses in kWh and how efficient it is. Choosing more energy-efficient appliances is definitely one of the best ways to cut costs, but there’s also a habit to change, like washing dishes by hand instead of running a half-empty dishwasher. We’ll talk more about cost-saving measures you can take later in this article.

💡 Your energy tariff

There are two types of energy tariffs: fixed and variable.

A fixed rate means the unit price and standing charges are fixed for a set period– your monthly bill may still vary based on usage.

A variable tariff changes throughout the year.

The Energy Price Cap only covers the variable tariff because a fixed rate is a contract. When the price cap changes during that time (it typically does every three months), your price per unit and standing charges won’t change.

So, choosing between rates is totally up to you, but we’ve covered everything you need to know in this guide to fixed vs. variable energy rates.

💰 How you pay

Paying for energy by direct debit is almost always cheaper than paying on receipt of a bill or using a prepayment meter. That’s because companies are guaranteed payment on a specific date, which also reduces their admin costs, such as chasing payments.

🤝 Bill management and bundling services

Roll your bills into one monthly payment with a bill management service like One Utility Bill, for simpler finances and the option of Unlimited Energy to take away some of the uncertainty around your energy bills

Pay for gas, electricity, water, broadband, and even a TV licence with a bills package, so you can easily plan your monthly budget. Get a quote for bundling your bills today.

✨ Unlimited energy

You can also get unlimited energy with One Utility Bill. So, you can use as much electricity or gas as you need without being charged for overuse, making it ideal for high usage households.

There are a few more things to consider before you’re an energy bill expert.

Seasonality

We use more energy in the winter, typically to light and heat our homes. Depending on how you choose to pay your supplier, your bills could go up in winter. Most suppliers structure your monthly payments to make sure you build up credit to use over the winter months, so it’s worth checking the situation before winter gets here![infographic]

Now you know how your utilities are calculated and even some of the major factors that drive up costs… It’s time to look at practical ways to reduce your energy bills. We’ve split them into three categories: changes you can make for free, low-cost investments, and smart technology. Check out our energy-saving guide for more info.

No-cost changes

• Turn down the thermostat by one degree: This simple change could save up to 10% on your energy bill, according to the Energy Saving Trust
• Reduce washing machine usage: Avoid running the washing machine with small loads, and try to rewear clothes if they aren’t too dirty. You can also save money by hanging washing outside to dry instead of using a tumble dryer.
• Take shorter showers: Reducing shower time to just five minutes is one of the easiest ways to save energy.
• Handwash dishes: Don’t run a half-empty dishwasher, either handwash your dishes or wait until it’s full to run it on an eco cycle.

Low-cost investments

• Buy thicker tog duvets: You should be comfortable in your home, which means running the heating in the winter to stay warm and healthy. But by buying a thicker quilt or investing in blankets for the sofa, you can keep the heating down a few degrees and save significantly over the year. The World Health Organisation recommends keeping your rooms at 18 °C to avoid negatively impacting your health.
• Replace lights with LED bulbs: LEDs use 80% less energy and last 20x longer than traditional halogen bulbs.
• Invest in smart plugs: Control your lights and appliances from an app on your phone, so you can turn them off remotely, set timers, and even check usage data.
• Draught-proofing: Structural changes to a property can be expensive, but there are some cheaper options to cover you for this winter, like draught-proofing windows and doors, and placing rugs on cooler floors.

Smart technology

• Smart meters: Track energy usage in real time, so you can see exactly how much you’re spending. This will also help you notice any appliances impacting that dreaded ‘phantom load’. Smart meters also send data directly to your energy provider, so they are always calculating your bill based on accurate data.
• Smart thermostats: Technology that optimises heating and cooling way more easily by learning your daily routine. Smart thermostats can adjust temperatures on their own, or you can control them on your phone.

Average energy bills are just that: averages. Your bill will depend on your home, how much energy you use, and even the type of tariff you’re on. The price cap helps set limits, but it doesn’t guarantee what your bill will be, especially if you’re in a bigger house or just use more energy than average.

If you’d rather skip the guesswork, One Utility Bill has you covered. With a monthly bills package, you pay the same amount each month for all your essentials, gas, electricity, water, broadband, and more. No surprises, no stress. Get a quick quote today and see how much easier managing your bills can be.