Should I fix my energy price/deal?

Should you fix your energy tariff?

Deciding whether to fix your energy tariff or stay on a standard variable rate is one of the most common questions for UK households. For a long time, the advice was simple: always fix, because standard variable tariffs were expensive default options. The energy crisis changed those rules entirely, making standard variable tariffs the safest place for most people as fixed deals disappeared or became far too costly.

However, the market has shifted again. As of July 2026, competitive fixed tariffs have returned, offering households a genuine choice. At the same time, wholesale energy prices remain unstable, driven by global events that continue to push up the cost of supplying gas and electricity to your home.

If you are tossing up whether to lock in a deal now or wait to see what happens, the decision comes down to how much you value certainty over flexibility. This guide explains exactly how the current market works, what forecasters expect to happen to prices over the coming winter, and the practical trade-offs you need to consider before signing a new contract.

The UK energy market in July 2026

To understand whether a fixed deal is right for you, it helps to look at what is happening with energy prices right now. On 1 July 2026, the Ofgem price cap rose by 13% compared to the previous quarter. This increase was driven primarily by a spike in wholesale gas prices, linked to ongoing geopolitical tensions in the Middle East.

The current price cap is set at £1,663 a year for a typical dual-fuel household paying by Direct Debit. It is crucial to understand that this figure is based on new usage assumptions. On 1 July 2026, Ofgem updated its Typical Domestic Consumption Values to reflect the fact that households are generally using less energy than they used to. The new baseline assumes a typical home uses 2,500 kWh of electricity and 9,500 kWh of gas a year.

If Ofgem were still using its old, higher usage assumptions, the headline cap figure would be reported as £1,862. This means that while the headline number might look lower than in previous years, the actual rates you pay for each unit of energy remain high. For Direct Debit customers on standard variable tariffs, the capped average rates are currently 26.11p per kWh for electricity and 7.33p per kWh for gas.

Alongside these unit rates, you also pay a daily standing charge just to be connected to the grid. Currently, the average standing charge is 57.19p a day for electricity and 29.04p a day for gas. These fixed daily costs apply regardless of whether you use any energy that day.

There is also a major policy change on the horizon. On 21 July 2026, Prime Minister Andy Burnham announced an immediate policy to remove the 5% VAT on domestic electricity bills. This tax cut will come into effect on 1 October 2026. Because it applies only to the electricity portion of your bill, it is expected to save a typical household around £44 to £45 a year. While this will provide some relief, it is unlikely to entirely offset the increases expected in the wholesale market.

Understanding your tariff options

When you compare energy deals, you will generally choose between two main types of tariff: a standard variable tariff or a fixed-rate tariff. The way these two options react to the wider market is the key difference you need to consider.

How standard variable tariffs work

A variable-rate energy tariff means the price you pay for each unit of energy can go up or down depending on the wholesale cost of energy. If you have not actively switched your energy tariff in the last year or two, or if your previous fixed deal came to an end and you did nothing, you will be on your supplier's standard variable tariff.

For the vast majority of consumers, standard variable tariffs are strictly governed by the Ofgem price cap. This means your supplier cannot simply change your unit rate on a whim. The rates are updated exactly four times a year: on 1 January, 1 April, 1 July, and 1 October. If wholesale prices fall, the next cap may fall, but network, policy and other supplier costs also affect the rates. If wholesale prices rise, the cap may rise.

One of the main benefits of a variable tariff is flexibility. You are not tied into a contract, which means you are free to leave at any time without paying an exit fee. If a brilliant fixed deal appears on the market tomorrow, you can switch to it immediately without penalty.

How fixed-rate tariffs work

A fixed-price tariff means you sign a contract to pay a set amount for each unit of energy (kWh) and a set daily standing charge for a specific period. Usually, this contract lasts for 12 or 24 months, though some suppliers offer 9, 14, or 20-month deals.

The main draw of a fixed tariff is protection. If wholesale energy prices double during your contract, your unit rates and standing charges will not change. This makes it much easier to budget, as you know exactly what your energy costs per unit. However, if wholesale prices crash, you will be stuck paying your higher fixed rate until your contract ends, unless you are willing to pay an exit fee to leave early.

Are standard variable tariffs a rip-off?

Before the energy crisis, standard variable tariffs were widely considered a trap. Suppliers would offer cheap fixed deals to attract new customers, and when those deals ended, they would roll customers onto a highly uncompetitive default tariff. Staying loyal to a supplier almost always meant paying over the odds.

This is no longer the case. Since the energy crisis began, the Ofgem price cap has become the defining feature of the market. Standard variable tariffs are now heavily regulated and highly competitive. At the current £1,663 cap level, the default tariff is roughly equal to, or sometimes cheaper than, many of the fixed deals available today.

Because of this, you should not feel pressured to move off a standard variable tariff just because you think it is a 'bad' deal. It is currently a very safe place to be. The real reason to consider moving away from it is not because it is currently a rip-off, but because it leaves you exposed to future price hikes when the cap updates in October and January.

Price forecasts: What will happen in winter 2026/2027?

To decide if a fixed deal is worth it, you need to look at where prices are expected to go next. The energy market is forward-looking, and suppliers price their fixed tariffs based on what they expect energy to cost over the next 12 months, not just what it costs today.

The forecasts for the coming winter suggest that staying on a variable tariff will lead to higher bills. Cornwall Insight, a respected independent energy research firm, predicts that the October 2026 price cap will rise to approximately £1,699. This forecast already factors in the savings from the upcoming VAT cut on electricity. Without that tax cut, the predicted rise would be even steeper.^[1]

Some energy suppliers are predicting even larger increases. E.ON Next and EDF have forecast that the October cap could range from around £1,747 to £1,760. The variation in these forecasts comes down to how different organisations model the volatile wholesale gas market and how suppliers buy their energy in advance.

The outlook for the start of 2027 is also concerning. Forecasters expect further increases in the new year, with predictions for the January 2027 price cap hovering around £1,838 to £1,865. Because January, February, and March are the months when households use the most heating, a price spike during this period has a massive impact on your total annual spend.

This leads to a common consumer question: should I wait for prices to drop before fixing? Based on current market forecasts, prices are not expected to drop in the short term. Waiting could mean missing out on the fixed rates available today and being forced to pay more during the most expensive months of the year.

The seasonal usage trap: Why fixing now makes sense

When you look at the cheapest fixed dual-fuel deals on the market in late July 2026, they range from approximately £1,672 to £1,851 a year, depending on your region and supplier. At first glance, locking in a deal at £1,750 when the current price cap is £1,663 seems like a bad idea. You are actively choosing to pay more.

However, this simple comparison ignores how you actually use energy throughout the year. You do not use a twelfth of your annual energy in July and a twelfth in December. In reality, a typical household uses a small fraction of its gas during the summer months, mostly just for hot water and cooking. The vast majority of your gas usage happens between November and March when the central heating goes on.

If you stay on the variable tariff, you will enjoy the lower £1,663 cap during August and September, when you are barely using any energy. But when winter arrives and your usage skyrockets, you will be paying the higher rates forecast for October (up to £1,760) and January (up to £1,865).

By fixing now, you might pay a tiny premium on the small amount of energy you use in late summer, but you protect your unit rates for the winter months when you use the most energy. This is the core trade-off of fixing in the current market: you are buying insurance against winter price hikes.

The pros and cons of fixing your energy

Before you commit to a new contract, it helps to weigh up the practical advantages and the potential downsides. Fixing is not just about the headline price; it is also about the terms and conditions attached to the tariff.

The most significant downside to a fixed tariff is the exit fee. If you change your mind halfway through the contract, or if prices drop dramatically and you want to switch to a cheaper deal, your supplier will charge you to leave. In 2026, the standard exit fee for a typical 12-month fix is usually around £50 per fuel (so £100 for a dual-fuel household). For example, suppliers like Octopus Energy typically charge this amount.^[1][2][3]

If you opt for a longer fix, such as a two or three-year contract, the exit fees can be even higher. You should always check the exact exit fee in the tariff details before you sign up. Remember, if you are in the final 49 days of your fixed contract, Ofgem rules state you can switch to a new deal without paying any exit fees at all.

Remember: The cap is not a maximum bill

Whether you choose a fixed tariff or stay on the variable rate, it is vital to understand that the headline figures you see in the news are just examples. For households in Great Britain, the £1,663 price cap is not a hard limit on what you will pay. It is simply an illustration of what a household with typical usage would pay over a year.

What is actually capped is the unit rate and the standing charge. If you live in a large, poorly insulated house and run the heating all day, you will use far more than the 2,500 kWh of electricity and 9,500 kWh of gas that Ofgem uses for its typical calculations. In that case, your bill will be much higher than £1,663.

Similarly, if you live in a small, modern flat and rarely turn the heating on, your bill will be lower. When you compare fixed deals, you should look at the actual unit rates (the pence per kWh) and the daily standing charges, rather than just the estimated monthly or annual cost.

How to find and switch to a fixed deal

If you decide that locking in your rates is the right move, the next step is finding the best deal. The market is competitive again, which means shopping around is worthwhile. The most efficient way to see what is available for your specific postcode and usage is to use an energy comparison website.

When you run a comparison, you will need your latest energy bill. This will tell you exactly how many kWh of gas and electricity you use in a year. Entering your actual usage rather than relying on a 'typical' estimate will give you a much more accurate picture of which tariff is genuinely the cheapest for your household.

It is also worth checking directly with your current supplier. Suppliers often reserve their best fixed deals for existing customers, and these tariffs might not appear on public comparison sites. Log into your online account or check your supplier's app to see if they are offering a competitive retention deal.

When you choose a new tariff and start the switch, the process is handled entirely by the suppliers. Your new supplier will contact your old one to arrange the handover. There will be no interruption to your gas or electricity supply, and nobody needs to visit your home to change any pipes or cables. The only difference you will notice is a final bill from your old supplier and a welcome pack from your new one.