What to do when your fixed energy tariff ends

What to do when your fixed energy tariff ends

When your fixed energy tariff comes to an end, it's a crucial time to review your energy options and make an informed choice for your household. Rather than passively accepting a default tariff, this moment offers a valuable opportunity to take control of your energy future.

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Understanding your fixed tariff and what happens next

Checking your current contract details and end date

The first step is to understand the specifics of your current fixed energy tariff. You can usually find this information on your latest energy bill or by logging into your online account. Look for your contract's end date and any associated exit fees. Fixed energy tariffs typically run for a set period, usually between 12 and 18 months, offering a consistent unit rate and standing charge for that duration.

The cooling-off and 49-day windows for switching

You have specific periods during which you can switch tariffs without incurring exit fees. You can leave a fixed tariff without penalty if you are within the first 14 days (the cooling-off period) of your contract, or if you are in the final 49 days of your contract. Knowing these dates allows you to plan your switch effectively and avoid unnecessary charges.

What happens if you do nothing when your tariff ends?

If you do not actively choose a new tariff, your energy supplier will automatically roll you onto their Standard Variable Tariff (SVT). These tariffs often have higher unit rates and standing charges than fixed deals, and their rates can change quarterly in line with the Ofgem energy price cap. This automatic rollover can lead to higher energy costs, making it crucial to explore your options.

Fixed vs variable: weighing your options

The benefits of a fixed energy tariff

A fixed energy tariff provides predictability. Your unit rate and standing charge remain constant for the entire contract term, typically 12 to 18 months. This protects you from sudden price increases in the energy market, making budgeting easier and offering peace of mind. However, if market prices drop significantly, you might miss out on lower rates unless you switch and pay an exit fee.

The flexibility and risks of a variable energy tariff

Variable energy tariffs offer flexibility, as they do not have exit fees or a fixed end date. However, their unit rates and standing charges can change quarterly, on 1 January, 1 April, 1 July, and 1 October, in line with the Ofgem Price Cap. This means your energy costs can go up or down, depending on market conditions. While you benefit from price drops, you are also exposed to potential increases.

Understanding the energy price cap and its impact

The energy price cap, set by the UK energy regulator Ofgem, limits the maximum amount suppliers can charge for each unit of gas and electricity, as well as the daily standing charge, for customers on SVTs. It is important to remember that the price cap is not a cap on your total bill; it limits the rates, so your bill will still depend on how much energy you use. The cap directly influences the cost of variable tariffs.

How to compare energy deals and switch supplier

Gathering your energy usage data for accurate comparisons

To find the best energy deal, you need to know your household's energy usage. Your annual consumption in kilowatt-hours (kWh) for both electricity and gas is typically found on your energy bills or through your online account. The average UK home uses around 2,500 kWh of electricity and 9,500 kWh of gas per year, according to Ofgem's medium Typical Domestic Consumption Values (TDCVs) effective from 1 July 2026. Having this data allows comparison tools to provide accurate cost estimates for different tariffs. Smart meters can also provide detailed insights into your usage patterns, making this step much simpler.

Using comparison websites effectively to find new deals

Energy comparison websites are valuable tools for exploring the market. Input your postcode and accurate energy usage data to get personalised quotes. Look beyond just the headline price; consider the contract length, any exit fees, and the supplier's customer service reputation.

The energy switching process explained

Switching energy suppliers is a straightforward process. Once you have chosen a new tariff and supplier, your new provider will handle the switch on your behalf. There is no interruption to your energy supply, and the process typically takes around 5 working days. You will usually be asked to provide a final meter reading to your old supplier to ensure an accurate last bill.

Making the best decision for your home

Considering your personal risk tolerance and budget

Your choice between a fixed and variable tariff should align with your personal financial situation and risk tolerance. If budget certainty is your priority, a fixed tariff offers stable costs. If you are comfortable with market fluctuations and want the flexibility to switch without fees, a variable tariff might be more suitable. Consider how a potential increase in energy costs would impact your household budget. For those looking to manage their energy consumption more efficiently, understanding options like an air source heat pump running cost can be beneficial.

The importance of smart meters for tariff choices and insights

Smart meters are increasingly important for managing your energy and accessing a wider range of tariffs. They send automatic meter readings to your supplier, eliminating estimated bills and providing you with detailed insights into your energy consumption. This data can help you identify ways to reduce usage and make more informed decisions about time-of-use tariffs. If you have a manual meter, many suppliers, including Fuse, offer free smart meter upgrades.

Seeking further support and advice for your energy decisions

If you are unsure about your options, impartial advice is available. Organisations like Citizens Advice offer free guidance on energy deals and switching suppliers. Additionally, Fuse Energy provides 24/7 human customer support to help guide you through potentially complex tariff decisions.

Frequently asked questions about ending tariffs

What are energy exit fees and when do they apply?

Exit fees are charges applied by your energy supplier if you leave a fixed-rate tariff before your contract ends. These fees typically apply if you switch to a different tariff or supplier outside of specific penalty-free windows. You will not pay an exit fee if you are within the first 14 days (cooling-off period) or the final 49 days of your contract. If you are moving home and take your Fuse tariff with you to your new property, no exit fee applies.

Can I switch energy supplier if I am in debt?

You can switch energy suppliers if you owe money to your old supplier and the debt is less than 28 days old. If the debt is older than 28 days, you will need to repay it before you can switch. For prepayment meter customers, you can switch if you owe less than £500 for each fuel (gas and electricity) and your new supplier agrees to transfer the debt.

How long does it take to switch energy suppliers?

The energy switching process typically takes around 5 working days from the date you sign up with your new supplier. During this time, your supply will not be interrupted, and your new supplier will manage the transfer process with your old one.

Published on 11 Jun 2026

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Disclaimer

For the avoidance of doubt, this article is provided for informational purposes only and is not intended to constitute legal or financial advice. The author and/or Fuse Energy shall not be responsible for any losses arising out of any reliance on the information contained herein.