What is a fixed-rate energy tariff?

A fixed-rate energy tariff is a deal where the unit rates and standing charges you pay for gas and electricity are locked in for a set contract period, usually 12 to 24 months. Your monthly bill can still change based on how much energy you use, but the price you pay per kWh will not increase during the fixed term, giving you greater bill certainty and protection from price rises.

Is it worth switching to a fixed energy tariff now?

Switching to a fixed energy tariff can be worth it if the fixed rates are lower than the current price cap or you value certainty over potential future savings. Fixing now can protect you against possible wholesale price increases, but you may miss out on savings if prices fall. Use the comparison on this page to compare fixed deals with your current tariff and estimated annual costs before committing.

How can I find the cheapest fixed energy deal for my home?

To find the cheapest fixed energy deal for your home, enter your postcode, current supplier and typical usage details into the comparison tool on this page. We will show you personalised prices from a range of UK suppliers, including tariff length, estimated annual cost and any exit fees. You can then filter, sort by price, and switch online in a few minutes.

Will I be charged exit fees if I switch from my current fixed tariff?

Many fixed-rate tariffs include exit fees if you leave before the end of the contract, typically charged per fuel. These fees can reduce or cancel out the savings of moving to a new deal. Before switching, check your current energy bill or online account for details of any early termination charges. Our comparison clearly shows exit fees for each tariff so you can decide whether the switch is financially worthwhile.

How long do fixed energy tariffs last?

Fixed energy tariffs usually last between 12 and 24 months, although some deals may be shorter or longer. The end date will be stated in your tariff information. Near the end of your fixed term, your supplier will typically move you to a standard variable tariff unless you choose a new deal. It is a good idea to compare tariffs again around 6 to 8 weeks before your fix ends to avoid paying more than you need to.

Will my direct debit change on a fixed tariff?

Your unit rates and standing charges are fixed, but your direct debit amount may be adjusted by your supplier if your actual energy use is higher or lower than estimated. To avoid unexpected changes, submit regular meter readings or use a smart meter so your bills reflect your real usage. Comparing deals based on your actual consumption will also help you choose a tariff that keeps monthly payments affordable.

How do I switch to a cheaper fixed home energy supplier?

Switching to a cheaper fixed home energy supplier is straightforward. Use the comparison on this page to find a tariff that suits your budget and contract preferences, then click through to start your switch. You will need details such as your address, current supplier and a recent bill. Your new supplier will handle the switch process, and there will be no interruption to your gas or electricity supply.

Can I get a green or renewable fixed energy tariff that is still cheap?

Yes, many UK suppliers now offer fixed-rate tariffs backed by renewable electricity or carbon-offset gas at competitive prices. On this page you can filter or compare tariffs that include green or low-carbon options alongside standard fixed deals. This helps you choose a tariff that balances price, environmental impact and contract length for your household.

Cheapest Fixed Home Energy Suppliers in the UK Right Now

Q: Who are the cheapest fixed home energy suppliers in the UK right now?

The cheapest fixed home energy suppliers in the UK change frequently due to wholesale price movements and new tariffs. On this page we compare current fixed-rate deals from leading suppliers and highlight those offering the lowest estimated annual cost for a typical household. Check the comparison table to see up-to-date prices and choose the tariff that offers the best value for your usage and postcode.

Lock in a low rate on your home gas and electricity. Compare the latest fixed price deals from trusted UK energy suppliers and switch online in minutes.

Why Choose a Fixed Home Energy Deal Now?

UK energy prices have been unpredictable, and many households want certainty over what they will pay each month. A fixed home energy tariff lets you lock in your price per kWh for gas and electricity for an agreed term, usually 12–24 months.

By comparing the cheapest fixed home energy suppliers in the UK now, you can:

Protect yourself from future price rises for the length of the fixed deal.
Know exactly what unit rates you will pay for gas and electricity.
Choose from a range of green, standard and dual fuel tariffs.
Switch quickly online with no interruption to your energy supply.

Every supplier we show is authorised to operate in the UK and offers home energy tariffs (not business tariffs), so you can compare with confidence.

Find Your Cheapest Fixed Home Energy Deal

Enter a few details about your home and we will help you compare live fixed price tariffs from leading UK suppliers.

Postcode

Property type

Fuel type

Dual fuel (gas & electricity)

Electricity only

Gas only

Current home energy supplier

Email address

Phone number

No obligation quotes. Your supply will not be interrupted when you switch.

How We Find the Cheapest Fixed Home Energy Suppliers

We monitor fixed home energy tariffs from a wide range of UK suppliers so you do not have to. Our comparison process focuses on the total annual cost to a typical household and highlights the cheapest fixed price deals that match your usage and location.

1. Check your details

Tell us your postcode, fuel type and approximate usage, or simply let us estimate based on your property type and number of bedrooms.

2. Compare fixed tariffs

We search suppliers to find fixed home energy deals available in your area, showing unit rates, standing charges and estimated annual costs.

3. Switch online

Select the tariff that suits you and complete your switch online. Your new supplier will handle the process and your lights stay on throughout.

Fixed vs Variable Home Energy Tariffs

When you compare home energy prices in the UK, you will typically see a choice between fixed and variable tariffs. Understanding the difference helps you decide which is best for your household.

Fixed home energy tariffs

Your price per kWh for gas and electricity is fixed for the length of the contract.
You are protected from wholesale price rises during the term.
Deals often last 12, 18 or 24 months.
Some fixed tariffs may have exit fees if you leave early.

Variable home energy tariffs

Prices can go up or down, usually in line with the energy price cap and wholesale costs.
Often no fixed end date and usually no exit fees.
Your monthly bill could rise if market prices increase.

If you want stability and predictable bills, a fixed tariff from one of the cheapest home energy suppliers in the UK can be a smart choice. However, if you prefer flexibility to move at any time, a variable tariff might suit you better.

What Affects Your Fixed Energy Price?

Postcode: Network and regional costs vary across the UK.
Fuel type: Dual fuel, electricity-only or gas-only tariffs.
Usage: The more energy you use, the more you pay, even on a cheap rate.
Payment method: Direct debit is often cheaper than on-demand billing.
Online vs paper billing: Online management can attract lower pricing.
Green options: 100% renewable electricity tariffs can be slightly higher, but many are now competitively priced.

When you compare with us, we factor in all of these elements to highlight the cheapest realistic fixed home energy deals for your household.

Typical Features of the Cheapest UK Fixed Home Energy Deals

While every tariff is different, some common features appear across the cheapest fixed home energy offers in the UK. Knowing what to look for can help you quickly identify the deals that give you the best value.

Competitive unit rates & standing charges

The total cost of your tariff depends on both the price per kWh and the daily standing charge. The cheapest fixed deals combine low unit rates with reasonable standing charges.

Direct debit and online account management

Fixed tariffs are often cheapest when you pay by monthly direct debit and manage your account online, as this lowers the supplier's costs.

Smart meter compatibility

Most new fixed tariffs are compatible with smart meters, which can help you track usage in real time and reduce waste at home.

Optional green energy

Many of the cheapest fixed home energy deals now include renewable electricity or carbon-offset gas without a significant premium.

Ready to Switch to a Cheaper Fixed Home Energy Supplier?

It only takes a few minutes to compare fixed rate tariffs in your area and secure a cheaper deal for your home. There is no disruption to your supply and your new supplier will manage the switch for you.

Start Your Fixed Tariff Quote

Frequently Asked Questions About Fixed Home Energy Deals

Fixed tariffs are not always the absolute cheapest at every moment, but they can offer better long-term value by protecting you from future price rises. When wholesale prices are expected to increase, a competitive fixed-rate deal from a cheap home energy supplier can save you money over the life of the contract.

No. Your home energy is delivered through the same pipes and wires regardless of supplier. When you switch to a new fixed tariff, your new supplier works with your old one behind the scenes, so you will not notice any interruption.

Many fixed home energy tariffs do include an exit fee if you leave before the end of the contract. However, some of the cheapest fixed deals have low or no exit fees. When you compare, always check the tariff information so you understand the terms before you switch.

If you are responsible for paying the energy bills at your rented property, you are usually free to switch to a cheaper fixed home energy tariff. Check your tenancy agreement, and if in doubt, speak to your landlord or agent before switching.

It is worth checking the market whenever your fixed deal is due to end or if you receive notice of a price change. Many households compare once a year to make sure they remain on a competitive tariff and are not moved onto a more expensive standard variable rate.

All information on this page relates to domestic (home) energy only and does not apply to business energy tariffs.

Tariffs and prices change regularly. Quotes are based on the details you provide and the latest rates available from participating UK home energy suppliers at the time of comparison.

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Updated on 13 Dec 2025