Energy Price Cap October : Ofgem Date and Forecast

The October energy price cap is one of the most important dates on the UK household finance calendar because it determines the maximum rates suppliers can charge customers on default tariffs during the winter quarter.

The key date is already confirmed: Ofgem is due to announce the energy price cap for 1 October to 31 December 2026 by 26 August 2026. The regulator can publish the figure earlier if external circumstances require it.

At present, the outlook is mixed. The current July–September cap is £1,862 a year under the previous consumption benchmark, but Ofgem changed its definition of typical household consumption from July. Using the new figures, the equivalent current cap is £1,663. Cornwall Insight's latest forecast puts the October cap at around £1,700 a year under the new consumption figures, although the equivalent figure under the old benchmark would be about £1,906.

That does not mean a household will automatically receive a £1,700 bill. The price cap limits unit rates and standing charges, so your actual bill depends on how much energy you use.

There is another important development. From 1 October, the UK government's temporary measure to remove VAT from domestic electricity bills is expected to reduce the cost included in the cap, while higher wholesale energy costs could push in the opposite direction. The government's estimate is that the VAT change could reduce a typical annual bill by about £45.

So what happens next, what could make the October figure rise or fall, and should households consider fixing their energy tariff before Ofgem makes its announcement?

Energy Price Cap October 2026: Ofgem Announcement Date, Forecasts and What Households Should Do

When will Ofgem announce the October 2026 energy price cap?

Ofgem has confirmed that the energy price cap covering 1 October to 31 December 2026 will be announced by 26 August 2026.

This is the official timetable rather than a forecast.

Ofgem normally reviews the cap every three months, with changes taking effect at the beginning of January, April, July and October. The next scheduled announcement after October's figure will be for the January–March 2027 period, with publication due by 25 November 2026.

For households, the important dates are therefore:

Date	What happens
26 August 2026	Ofgem's deadline to announce the October–December cap
1 October 2026	New cap takes effect
25 November 2026	Ofgem deadline for January–March 2027 cap
1 January 2027	January cap period begins

The announcement should provide the new cap level alongside the unit rates and standing charges that apply to different regions and payment methods.

What is the energy price cap?

The energy price cap is a limit set by Ofgem on the rates suppliers can charge customers on default tariffs.

It does not put a maximum on the total amount your household can spend.

That distinction is easy to miss.

If your supplier charges a capped electricity rate and you use twice as much electricity as another household, your bill can be roughly twice as high for the energy consumed, subject to the applicable standing charges and tariff structure.

The cap applies to components such as:

• Electricity unit rates
• Gas unit rates
• Daily standing charges
• Different payment methods and regional rates

Customers on fixed tariffs are generally not directly affected by a change in the cap during their fixed-rate period.

Ofgem's current July–September figures illustrate how the system works. For direct debit customers, the average electricity unit rate is 26.11p per kWh, with a 57.19p daily standing charge. Gas is 7.33p per kWh with a 29.04p daily standing charge.

Your supplier's actual rates can vary according to region, meter type and payment method.

What is the current energy price cap before October?

The current headline cap for 1 July to 30 September 2026 is £1,862 a year using the older typical consumption benchmark.

However, there is an important statistical change behind the headlines.

From July 2026, Ofgem introduced new Typical Domestic Consumption Values (TDCVs), reflecting lower household energy use. The new central figures are:

• 2,500 kWh of electricity per year
• 9,500 kWh of gas per year

Previously, the benchmark was 2,700 kWh of electricity and 11,500 kWh of gas.

Using the new consumption assumptions, the July–September cap is equivalent to approximately £1,663.

This means readers may encounter apparently contradictory figures when researching the October price cap.

Both can be legitimate, provided the underlying consumption assumptions are clearly stated.

What is the latest October energy price cap forecast?

The latest major forecast available before Ofgem's announcement comes from Cornwall Insight.

Its 21 July 2026 forecast puts the October–December cap at approximately:

£1,700 a year under Ofgem's new typical consumption figures.

Using the previous consumption benchmark, the equivalent forecast is approximately:

£1,906 a year.

The distinction matters because the lower £1,700 number does not necessarily mean energy has suddenly become dramatically cheaper.

A large part of the difference comes from Ofgem changing the amount of energy used to represent a "typical" household.

Cornwall Insight says its October forecast represents roughly a 2% rise against the current cap when using comparable consumption assumptions, with increased wholesale costs putting upward pressure on bills.

So the most sensible way to interpret the forecast is:

Energy prices are currently expected to remain high going into winter, with the October cap potentially slightly higher than the comparable July–September level.

It is not yet the final figure.

Why could the October energy price cap rise?

The biggest variable is the wholesale cost of energy.

Wholesale gas and electricity prices feed into the price cap calculation, and movements in those markets can have a significant effect on household bills.

The current outlook is particularly sensitive to international gas markets.

Cornwall Insight's July forecast highlighted increased geopolitical uncertainty and rising wholesale costs as reasons for expecting pressure on the October cap.

This matters because the UK remains heavily exposed to international gas prices. Gas is not only used directly for heating and cooking; it also influences electricity generation and therefore electricity-market costs.

Other components also contribute to the final cap.

Ofgem's July 2026 breakdown shows the price cap includes:

• Wholesale energy costs
• Network costs
• Operating, debt and industry costs
• Policy costs
• Supplier earnings allowance
• Headroom
• Levelisation allowances
• VAT

For the July–September 2026 cap, wholesale costs represented roughly 45% of the total under the published breakdown, while networks represented about 25%.

That explains why government intervention in one part of a bill does

not necessarily prevent the overall cap from rising.

Could the October price cap fall instead?

Yes.

A forecast is not a guarantee.

The final October figure depends on the information used in Ofgem's calculation and the market conditions feeding into it.

A sustained fall in wholesale gas prices could reduce the pressure on the cap. Conversely, another major supply disruption or geopolitical shock could push the figure higher.

This is why households should treat forecasts as planning information rather than promises.

A useful way to think about the forecast is as a weather forecast for household energy costs: it gives you a reasonable indication of the direction, but it cannot predict every event between now and the final announcement.

What effect will the electricity VAT cut have?

One of the biggest changes affecting the October cap is the government's decision to remove VAT from domestic electricity bills from 1 October 2026.

The government announced the temporary measure on 21 July, reducing VAT on household electricity from 5% to 0%. It expects the change to take around £45 off the yearly Ofgem price cap for a typical household.

Cornwall Insight estimates the saving at roughly £44 a year for a typical dual-fuel household.

That sounds significant, but it needs to be viewed alongside wholesale costs.

If wholesale gas and electricity prices rise sufficiently, the VAT saving can be partly or completely offset.

In other words, a tax cut does not guarantee a lower total energy bill.

Does the VAT cut mean everyone will save exactly £45?

No.

The £45 figure is an estimate based on typical consumption.

Your saving depends on how much electricity you use.

A household that uses considerably more electricity could save more in cash terms. A low-use household could save less.

The government also says suppliers are expected to pass the VAT reduction through to customers, including customers on fixed tariffs.

This is an important distinction from the price-cap mechanism itself.

The VAT change is a tax measure; the Ofgem cap is a regulatory limit on tariff rates.

Why does the October forecast show £1,700 instead of £1,906?

This is one of the easiest parts of the 2026 energy story to misunderstand.

The answer is Ofgem's revised Typical Domestic Consumption Values.

Ofgem reduced its benchmark for annual household consumption from:

• Electricity: 2,700 kWh → 2,500 kWh
• Gas: 11,500 kWh → 9,500 kWh

Cornwall Insight therefore reports both figures to make comparisons possible. Under the new definition, its October forecast is £1,700; under the old definition, the equivalent figure is £1,906.

That does not mean Ofgem has magically reduced the underlying unit price by hundreds of pounds.

It means the annual example assumes a household consumes less energy.

Will the October cap affect households on fixed tariffs?

Not in the same direct way.

If you are on a fixed tariff, your contracted unit rates generally remain fixed for the agreed period, subject to the terms of your contract.

A change in Ofgem's October cap does not automatically replace your fixed rates.

However, the broader market can still matter when your fix expires.

For example, suppose you fix your tariff until November 2026. The October price cap may change while you are still protected by your fixed contract. When you reach the end of the deal, the available tariffs could be different.

That makes the timing of your tariff end date important.

Is the price cap automatically the cheapest tariff?

No.

The price cap is not a statement that the capped tariff is the cheapest option available.

Suppliers can offer fixed tariffs or other deals below the applicable cap.

A household should compare the total cost of available deals rather than assuming that staying on the default tariff is automatically best.

Consider these broad options:

Tariff type	Best suited to	Main advantage	Potential limitation
Default/variable	People wanting flexibility	No long fixed contract	Rates can change with the cap
Fixed tariff	People wanting predictable rates	Greater payment certainty	Exit fees or less flexibility may apply
Time-of-use tariff	Households able to shift consumption	Potential savings at cheaper times	Requires flexible usage and suitable meter
Tracker-style tariff	Customers comfortable with market movements	Can benefit when wholesale prices fall	Costs can rise quickly

The right choice depends on your consumption, risk tolerance and the actual tariffs available to you.

Should you fix your energy tariff before October?

There is no universal answer.

If you are considering a fixed tariff, compare it with the likely cost of remaining on the variable tariff rather than trying to predict the exact Ofgem number.

A useful approach is to ask four questions:

1. What is my current unit rate?
2. When does my current tariff end?
3. What is the annual cost of the new fixed deal based on my actual consumption?
4. What happens if the October cap is higher or lower than expected?

Do not compare only the headline annual figure.

Check:

• Electricity unit rate
• Gas unit rate
• Electricity standing charge
• Gas standing charge
• Exit fees
• Contract length
• Any special conditions
• Estimated annual cost based on your own usage

For a household that values certainty, paying slightly more for a fixed tariff can sometimes be worthwhile. For someone who expects prices to fall and wants flexibility, a variable tariff may be more attractive.

What should households do before 26 August?

You do not need to wait passively for Ofgem's announcement.

Start by checking your latest bill.

Look at your actual annual electricity and gas consumption rather than relying

on the "typical household" figure used in headlines.

Then check your current tariff.

Step 1: Find your annual consumption

Your bill or online account should show your electricity and gas usage in kWh.

This is more useful than simply knowing how much you paid last month.

Step 2: Check your tariff end date

If you are already fixed, find out when the deal ends and whether an exit fee applies.

Step 3: Monitor available deals

Compare the annual cost using your actual consumption.

A tariff that looks expensive for a typical household could be competitive for your particular usage pattern.

Step 4: Watch the Ofgem announcement

The final figure is due by 26 August.

Once it is announced, compare the new capped rates with any fixed deals you are considering.

Step 5: Prepare for winter usage

October marks the start of the colder part of the year for many households.

Heating demand can rise sharply even if the unit price itself does not change dramatically.

This means energy efficiency can have a bigger effect on your final bill than small differences between competing tariffs.

What can households do to reduce winter energy bills?

The simplest saving is often the energy you do not have to buy.

Before winter, consider:

• Checking whether your boiler is operating efficiently
• Improving insulation where practical
• Draught-proofing doors and windows
• Using heating controls correctly
• Turning down heating in unused rooms
• Washing clothes at lower temperatures where appropriate
• Avoiding unnecessary standby consumption
• Using smart-meter data to identify high-use periods
• Comparing tariffs that reward off-peak consumption if suitable

The key is to focus on your biggest energy uses first.

For a gas-heated home, heating is likely to matter far more than switching off a handful of standby appliances.

What happens if you cannot afford your energy bill?

If you are struggling to pay, do not wait until the debt becomes unmanageable.

Ofgem says suppliers must help customers who tell them they cannot pay their bills. Depending on the circumstances, this can include arrangements for repayment or emergency credit for customers with prepayment meters.

Contact your supplier as early as possible.

You may also be eligible for support depending on your circumstances and location.

The important practical point is that missing payments without contacting the supplier usually makes the situation harder to resolve.

How does the October cap affect households differently?

The headline figure is only an illustration.

Two households can face very different bills under exactly the same price cap.

Consider two homes.

Household A is a small, well-insulated flat with two occupants and relatively low gas consumption.

Household B is a larger detached property with several occupants, poor insulation and high heating demand.

Even if both are on the same capped tariff, Household B can spend substantially more because it uses more energy.

This is why the annual cap figure should never be treated as a personal bill prediction.

Why gas prices matter so much to electricity bills

This is a key part of the UK energy market.

Gas is used to generate electricity, particularly when demand is high or renewable generation is insufficient.

Consequently, movements in wholesale gas prices can affect both gas bills and electricity-market costs.

That is one reason international events can have surprisingly rapid effects on UK household energy costs.

The government's 2025 energy bill measures reduced certain policy costs from April 2026, but wholesale costs remain a major component of the overall price cap.

What could change the October forecast between now and August?

Several factors could move the forecast.

Wholesale gas prices

This is probably the most obvious variable. A sustained fall could reduce the expected cap, while another price spike could increase it.

Geopolitical developments

Energy markets react quickly to concerns about supply disruptions, shipping routes and infrastructure.

Recent market volatility demonstrates how quickly assumptions can change.

Government policy

The electricity VAT change is already scheduled for October, but further policy decisions could affect future bills.

Cornwall Insight has also highlighted wider discussion around energy levies and possible changes to how some costs are funded.

Ofgem methodology

The regulator's calculations include numerous cost components, and methodological changes can affect the final result.

Ofgem has, for example, said that its temporary approach to the unidentified gas allowance will be updated as part of the August 2026 cap update.

What are experts predicting for winter energy bills?

The broad message from current forecasts is not that energy bills are about to collapse.

Instead, experts expect prices to remain relatively high and potentially rise modestly into the October period.

Cornwall Insight's latest forecast points to around £1,700 under the new consumption benchmark, while the comparable old-benchmark figure is £1,906. It also says the VAT saving is likely to be offset by higher wholesale costs.

That creates a relatively cautious outlook.

There may be some relief from government intervention, but international energy markets remain capable of overwhelming relatively small policy savings.

What does the future of the energy price cap look like?

The price cap is likely to remain an important feature of the UK energy market in the near term, but the way households buy energy is changing.

Smart meters, time-of-use tariffs, home batteries, solar panels, electric vehicles and heat pumps all create more opportunities for households to adjust when and how they consume electricity.

The long-term challenge is that electricity needs to become attractive enough for consumers to switch away from fossil-fuel heating and transport, while the energy system remains affordable.

Cornwall Insight has specifically noted that reducing the price difference between electricity and gas could help encourage the move toward electric heating and vehicles.

That means future energy bills may be shaped by more than the quarterly price cap.

Household technology, energy efficiency, flexible tariffs and government policy could become increasingly important.

What is the most sensible way to plan for October?

Do not build your household budget around the lowest forecast.

Instead, plan using a range.

For example, if your current annual energy cost is £1,600 and you are worried about a modest increase, allow some additional headroom in your winter budget rather than assuming a forecast will be exact.

This approach protects you against two common mistakes:

• Assuming a forecast is guaranteed
• Assuming the headline annual cap is your personal bill

Your own consumption remains the most important variable you can control.

Key Insights

1. Ofgem is due to announce the October 2026 energy price cap by 26 August 2026, covering bills from 1 October to 31 December.
2. The latest Cornwall Insight forecast is around £1,700 using Ofgem's new typical household consumption figures.
3. The equivalent forecast using the old consumption benchmark is about £1,906, which explains conflicting figures appearing in the media.
4. The October outlook remains sensitive to wholesale gas and electricity prices, geopolitical developments and Ofgem's calculation.
5. VAT on domestic electricity is due to fall from 5% to 0% from 1 October, with the government estimating a typical saving of about £45 a year.
6. The price cap does not cap your total bill. Your actual cost depends primarily on how much energy you use.
7. If you are considering a fixed tariff, compare its rates and total projected cost with your own consumption rather than relying solely on the headline price cap.
8. Households struggling with bills should contact their supplier early because support and repayment options may be available.

FAQ

1. When will Ofgem announce the October 2026 energy price cap?

Ofgem is scheduled to announce the price cap for 1 October to 31 December 2026 by 26 August 2026. It may publish the figure earlier if external circumstances require it.

2. What is the October 2026 energy price cap forecast?

The latest Cornwall Insight forecast available before the announcement is around £1,700 a year using Ofgem's new typical consumption figures of 2,500 kWh electricity and 9,500 kWh gas.

3. Why are some reports saying the October cap could be £1,906?

The £1,906 figure uses Ofgem's previous typical consumption assumptions of 2,700 kWh electricity and 11,500 kWh gas. Ofgem reduced those benchmarks from July 2026, producing the lower £1,700 comparable headline figure.

4. Will energy bills rise in October 2026?

They could. Cornwall Insight's latest forecast suggests a modest rise under comparable consumption assumptions, although the final figure will not be known until Ofgem announces it. Wholesale energy prices are a major source of uncertainty.

5. What is the current energy price cap?

For 1 July to 30 September 2026, Ofgem's headline cap is £1,862 based on the previous typical consumption benchmark. Under the new consumption figures introduced in July, the comparable figure is £1,663.

6. Does the energy price cap limit my total annual bill?

No. It limits the rates suppliers can charge on default tariffs. Your total bill depends on how much electricity and gas you consume, as well as your region, meter and payment method.

7. Will the October price cap affect fixed-rate tariffs?

A price-cap change does not normally alter the contracted rates on an existing fixed tariff during its fixed period. However, the October market can influence the deals available when your fixed contract ends.

8. Will electricity VAT really be removed in October?

The government has announced that VAT on domestic electricity bills will fall from 5% to 0% from 1 October 2026. It estimates the measure will reduce a typical annual Ofgem price-cap bill by around £45.

9. Is £1,700 the amount I will pay for energy in October?

No. £1,700 is a benchmark figure based on typical consumption. Your actual bill could be much lower or higher depending on how much energy you use.

10. Should I fix my energy tariff before October?

There is no universally correct answer. Compare the fixed tariff's unit rates, standing charges, contract length and exit fees against your expected cost on a variable tariff using your own energy consumption.

11. What happens if wholesale gas prices rise before August?

A significant rise in wholesale costs could push forecasts higher and potentially affect Ofgem's final calculation. Forecasts can change before the official announcement.

12. Can the October price cap be lower than expected?

Yes. If wholesale energy costs fall or other components of the cap move favourably, the final figure could be lower than current forecasts.

13. When does the October 2026 price cap start?

The October cap period starts on 1 October 2026 and runs through 31 December 2026. The next quarterly cap begins on 1 January 2027.

14. How can I reduce my energy bill before winter?

Start with your biggest sources of consumption. Improving insulation, managing heating controls, reducing unnecessary heating and using smart-meter information can make a bigger difference than focusing on small appliance savings alone.

15. What should I watch after Ofgem announces the October cap?

Check the new electricity and gas unit rates, standing charges and how they compare with your existing tariff. Then review fixed deals and calculate the likely annual cost using your own consumption rather than the headline typical-household figure.

Final Thoughts

The October 2026 energy price cap is likely to bring another closely watched change for households, but the headline number needs careful interpretation.

The official announcement is due by 26 August, while the latest forecast from Cornwall Insight suggests an October cap of around £1,700 under Ofgem's new typical consumption assumptions. The comparable figure using the old consumption benchmark is around £1,906.

The government's electricity VAT cut should provide some relief from October, but higher wholesale costs could absorb much of that benefit. That is why households should not base their winter budget on a single forecast.

The most useful thing to do now is straightforward: check your actual energy consumption, understand when your current

tariff ends, monitor available deals and reassess your options when Ofgem publishes the final figure.

For most households, the real question is not simply "What will the October price cap be?" It is "What tariff and level of energy use will give my household the lowest realistic cost this winter?"

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