Energy-Review.co.uk

Who is cheaper than British Gas? (2025)

Last reviewed: 1st August 2025

British Gas, one of the UK’s leading energy providers, has long been the go-to choice for many. However, as budgets tighten, it is worth considering who is cheaper than British Gas and if there is a better supplier for you.

By switching suppliers, you could potentially save a substantial amount of money each year.

In this post, we’ll look at British Gas’s current charges and a few alternative suppliers to see who is cheaper.

We will also look at which suppliers are better than British Gas, in case price is not your only consideration.

Quick answer: As of 1st August 2025, Octopus Energy’s 12‑month fix is £1 a year cheaper than British Gas and carries no exit fee. Octopus also have better customer service based on Citizens Advice ratings.

If you are a higher energy user, it is also worth considering OVO, E.ON Next, along with Octopus.

Here is a quick comparison of which suppliers are cheaper than British Gas based on Unit Rate and Standing Charge for gas and electricity.

Supplier NameTariff NameGas Unit RateElectric Unit RateGas Standing ChargeElectric Standing Charge
Octopus EnergyOctopus 12M Fixed5.75p24.76p28.69p45.82p
British GasFixed Tariff 12M5.78p24.76p28.42p45.55p
E.ON NextNext Pledge Tracker 12m5.98p24.12p29.64p46.77p
OVO Energy1 Year Fixed 245.88p23.72p28.49p54.30p
ScottishPowerStandard (Price Capped tariff)6.20p25.06p29.64p46.77p

These prices are for a property in the East Midlands, using the average amount of gas and electricity for a 3-bedroom house, paying by direct debit and using a smart meter.

For most people, Octopus Energy will be the cheapest, big-name supplier.

Get a free quote in less than one minute and £50 credit when you switch to Octopus.

Get £50 credit

Now let’s have a look at how this translates into how much you’ll likely pay per month with each supplier:

Supplier nameTariff nameTariff typeTariff lengthCost per monthCost per yearEarly exit fee
Octopus EnergyOctopus 12M Fixed July 2025 v6Fixed12 months£140£1,680£0
British GasFixed Tariff v81Fixed12 months£140£1,681£100
E.ON NextNext Pledge Tracker 12m v9Variable12 months£141£1,696£0
OVO Energy1 Year Fixed 24 July 2025Fixed12 months£141£1,696£100
ScottishPowerStandard (Price Capped tariff)Variablemonthly rolling£146£1,749£0

As you can see from the table above, for the typical energy user, Octopus Energy is currently the only supplier offering a cheaper deal than British Gas.

They just beat British Gas overall in price by £1 per year, but have the added advantage of no exit fees, so you can switch whenever you like. Whereas British Gas currently charge £100 if you’d like to switch tariffs!

The tables above provide a quick guide on which tariffs are currently cheaper than those offered by British Gas, but continue reading for more details on each supplier.

If you are a low-energy user and are looking for a tariff with the lowest standing charges, then British Gas is actually the cheapest supplier. They have the lowest standing charge rates for both Gas and Electricity, closely followed by Octopus.

If you are a higher energy user, then unit rates are the most important part to focus on. This is because these are charged for each unit of energy you use, unlike the fixed costs of standing charges, so the cheaper these are, the better.

For higher gas users, Octopus Energy offers the cheapest Gas unit rate and is the only supplier cheaper than British Gas.

For higher electricity users, OVO, E.ON Next and Octopus are all cheaper than British Gas.

As a benchmark, these are the current prices for customers on new British Gas tariffs. As the Energy Price cap restricts how much suppliers can charge, if you are an existing customer of British Gas’ Standard Variable Tariff, you are likely paying a similar price to the variable tariff below.

Again, these prices are for a property in the East Midlands, using the average amount of gas and electricity for a 3-bedroom house, paying by direct debit and using a smart meter.

To keep things simple, we have just picked the cheapest variable and cheapest fixed tariff currently available:

Tariff NameTariff DescriptionMonthly Cost
Fixed Tariff v81A fixed tariff for 1 year. Exit fee of £50 per fuel.£140
Standard Variable TariffA variable tariff. No exit fees.£146

First, we’ll look at whether Octopus Energy are cheaper than British Gas. Octopus are the only supplier bigger than British Gas and has consistently been one of the cheaper suppliers in the past.

Here are the results from our quote search using the same details as for British Gas:

Tariff NameTariff DescriptionMonthly Cost
Octopus Tracker TariffA smart tariff where prices change daily£120*
Octopus Fixed 12mFixed tariff. No exit fees.£140
Flexible OctopusA variable tariff. No exit fees.£145

Octopus now have a fixed tariff available to new customers. They also offer a ‘smart’ tariff called Tracker where prices change daily. You can find more information in our Octopus Tracker Tariff Review.

*For this comparison, we have manually calculated the cost using the average price for the last 30 days.

As you can see, Octopus Energy would likely be a cheaper option for you than British Gas if you are looking for either a fixed or variable tariff. If you are happy to switch to the Tracker tariff, then you could save even more per month.

Next, we will take a look and see if OVO are cheaper than British Gas:

Tariff NameTariff DescriptionMonthly Cost
1 Year FixedA fixed tariff for 1 year. Exit fee of £50 per fuel.£141
Simpler EnergyA variable tariff. No exit fees.£146

As you can see from the above, OVO’s fixed tariff is more expensive than the one from British Gas, with their variable tariffs being the same price.

The difference is so close, it is difficult to say here that OVO are cheaper than British Gas; therefore, if you are an existing British Gas customer, there is likely little point switching based on price alone.

Another contender is E.ON Next. Let’s look and see if they are cheaper than British Gas:

Tariff NameTariff DescriptionMonthly Cost
Next Pledge Tracker 12mA variable tariff. No exit fees.£141
Next GustA fixed tariff for 1 year. Exit fee of £50 per fuel.£143

E.ON Next is cheaper than British Gas for variable tariffs. With their Next Pledge tariff coming in at £5 per month cheaper than the comparative British Gas tariff.

Their fixed tariff is more expensive than the comparable British Gas tariff, and both are more expensive than British Gas’s cheapest offering.

Finally, we’ll see if ScottishPower are cheaper than British Gas.

Tariff NameTariff DescriptionMonthly Cost
Standard VariableA variable tariff. No exit fees.£146

ScottishPower are more expensive than British Gas by around £6 per month. If you’re with British Gas, then switching to ScottishPower is unlikely to save you money.

From the main suppliers we have looked at here, the following suppliers could get you a cheaper deal than British Gas:

Clicking on the link above will take you straight to the supplier’s ‘Get a Quote’ page, so you can get a personalised quote.

As quotes will vary based on factors such as your usage and location, it is important to get a quote from each supplier yourself before deciding which one is cheaper for you.

It is also worth considering any early exit fees you may have to pay by leaving your existing deal. If you are on a variable tariff, you will likely not have an Exit Fee to pay, but if you are on a Fixed tariff, then you may.

When switching suppliers, price is not the only factor to consider. Based on Trustpilot scores and scores from CitizensAdvice, we have put the table below showing which suppliers could be considered to be better than British Gas:

Supplier NameWhich? ScoreTrustpilot ScoreCitizensAdvice
British Gas58%4.33.3
Octopus Energy74%4.83.2
OVO58%4.63.6
E.ON Next62%4.53.1
ScottishPower59%4.33.6

From this, you can see that Octopus Energy and ScottishPower are the top two picks that are better than British Gas based on customer scores. The other suppliers mentioned are better for customer reviews but not necessarily for customer service.

It is important to remember that there are other factors you can compare to, like the usability of each supplier’s apps, how green their energy is, customer service response times and their complaints record. Our site has various guides that look at this in more detail for each supplier

You can find some key ones below:

Frequently Asked Questions

Is it free to switch away from British Gas?

Yes – if you are on a variable tariff there is no exit fee, but British Gas charges £50 per fuel if you leave its current 12‑month fix.

How long does the energy‑switching process take?

Under the Energy Switch Guarantee, most UK switches complete within five working days, with no interruption to your gas or electricity supply.

Will my lights or heating go off during the switch?

No – the physical supply comes through the same pipes and wires, so you will not experience any downtime.

Do I need a smart meter to get these prices?

The comparison tables assume you pay by direct debit and have a smart meter; rates may be slightly higher for standard credit or pre‑payment customers.

Which supplier currently has the lowest standing charges?

For the average three‑bed home, British Gas posts the lowest standing charges, closely followed by Octopus Energy.

Are Octopus Energy’s tariffs always cheaper than British Gas?

At today’s rates (1 August 2025) Octopus is £1 a year cheaper on the typical 12‑month fix, but prices vary by region and usage, so always get a personalised quote.

What happens if the Ofgem price cap falls after I switch?

On a variable tariff your rates will drop automatically; on a fixed deal you can leave early but may need to pay the exit fee unless your new supplier covers it.

Does switching affect the Warm Home Discount or other support schemes?

No – eligibility is set by government criteria; simply re‑apply with your new supplier after the switch.

Can I switch again if prices keep falling?

Yes – Octopus, E.ON Next and other no‑exit‑fee tariffs let you move whenever you like, whereas fixed deals from British Gas or OVO lock you in for 12 months unless you pay the fee.

Rob
Rob

Hi, I'm Rob and I run Energy-Review.co.uk. I initially started this project in 2018 when I was looking to switch energy suppliers and found there wasn't a website that provided simple, data backed reviews on all the suppliers available. Since then, I spent have a lot of time (too much some may say!) looking at all publicly available data about each supplier and writing reviews using this information. These reviews are updated as regularly as possible and any data is backed up by a source where necessary. I have also started writing guides on various energy related topics which hopefully you will find useful. If you find any issues, please use our contact form to let us know.

3 Comments
  1. Hi, Harry, I am with British Gas. I use 2 kWh per day but I think I can get it lower than that. More than half my bill is the standing charge. I think it is 60p per day. Which company would give me a better deal?

  2. hi harry.i am with eon next don’t know why my electric is an extra £40 a month i was paying £150 monthly hust put it up to £170.just my wife and i in small 2 bedroom bungalow.can you help.thanks daniel fitzgerald.

  3. sign me up please

Leave a reply

Get £50 Credit from Octopus!Special offer for new customers

Beat the Price Cap!

Switch to Octopus through our link below and get £50 credit in your Octopus account.

Why Octopus?

  • Currently the cheapest supplier (October 2025)*
  • The highest-rated supplier on Trustpilot (4.8/5)

Click below to get a free quote in minutes and get your £50 credit.

Energy-Review.co.uk
Logo