Energy Price Cap Martin Lewis

The energy price cap and the Martin Lewis message around it point to the same practical conclusion for households on a standard variable tariff: from 1 July 2026 the cap rose by 13%, but for most people paying by Direct Debit that rise is avoidable by switching to a cheaper fixed or variable deal. The cap does not fix your total bill; it limits the unit rates and standing charges you pay, so your actual cost depends on how much gas and electricity you use.

Ofgem confirmed on 27 May 2026 that the cap for 1 July to 30 September 2026 would rise to around £1,862 a year for a typical dual-fuel household on the older usage benchmark. Martin Lewis has repeatedly described this rise as “voluntary” for most Direct Debit customers, because whole-of-market fixed tariffs sitting below the cap let you sidestep it. Free Price Compare sources these figures from Ofgem publications and helps households run a whole-of-market comparison to find their own cheapest tariff.

Last updated: July 2026

Written by the Free Price Compare editorial team | Reviewed July 2026

Why Martin Lewis calls the July 2026 rise “voluntary”

Martin Lewis describes the July 2026 price cap rise as “voluntary” for most Direct Debit customers because fixed and cheaper variable tariffs priced below the cap let households avoid the increase entirely. The price cap only sets the maximum rates suppliers can charge on a standard variable tariff; it does not force you to stay on one. If a whole-of-market fix undercuts the cap, moving to it removes you from the rise.

According to Ofgem, the cap for 1 July to 30 September 2026 climbed 13% to around £1,862 a year for a typical dual-fuel household paying by Direct Debit, using the older 2023 usage benchmark. The rise was driven mainly by higher wholesale gas prices. The catch is that cheap fixes are largely limited to Direct Debit customers, so prepayment households have fewer options to escape the cap.

The “voluntary” framing does not apply equally to everyone. It works best for people who pay monthly by Direct Debit, are on a standard variable tariff, and can find a fix below the cap for their usage and region. If you are already on a fix, or on prepayment, the message plays out differently.

Compare energy tariffs below the cap

What is the energy price cap and how does it work?

The energy price cap is a limit set by Ofgem on the maximum unit rates and standing charges that suppliers can charge domestic customers on a standard variable tariff in England, Scotland and Wales. It is not a cap on your total bill: the widely quoted annual figure is only what a household with “typical” usage would pay, so a home that uses more energy pays more than the headline number.

The cap has two parts for each fuel: a unit rate (pence per kWh of gas or electricity used) and a standing charge (a fixed daily cost regardless of usage). For 1 July to 30 September 2026, Ofgem set the average electricity unit rate at around 26.11p/kWh with a standing charge of about 57.19p/day, and the average gas unit rate at around 7.33p/kWh with a standing charge of about 29.04p/day. Rates vary by region and payment method.

The cap is reviewed every three months and applies to roughly two-thirds of domestic customers, those on default standard variable tariffs. Northern Ireland has a separate energy market and is not covered by the Ofgem cap. If you are on a fixed deal you are not on the cap, so a cap change does not alter your rates until your fix ends.

For a fuller breakdown of how the cap is built and why gas bills stay stubbornly high, see our guide to why gas bills are so high and what the energy price cap means.

How much will your bill actually go up in July 2026?

The July 2026 rise adds most to the bills of higher-usage and gas-reliant homes, because the increase falls on unit rates rather than the daily standing charge. Ofgem confirmed gas rates rose far more sharply than electricity: gas prices increased by around 24% while electricity rose by around 5% from 1 July 2026. A home that heats and cooks with gas therefore feels the rise more than an all-electric flat.

Timing softens the immediate impact. Most households use only around 15% of their annual energy between July and September, so the summer quarter carries a small share of the yearly cost. For someone paying around £150 a month, the July change adds roughly £30 to £40 across the three summer months, before usage climbs again in autumn.

The direct-debit headline of around £1,862 a year (older benchmark) is an average across regions and typical usage. Your figure depends on your own consumption, your region and how you pay. Prepayment customers face a separate cap of around £1,812 a year from 1 July 2026, and those paying on receipt of a bill face a higher cap of around £2,005 a year.

Figures are indicative, based on Ofgem’s typical-usage benchmark, and may change. Your actual bill depends on how much energy you use.

Fix or stay on the price cap: how to decide

Whether to fix your energy or stay on the price cap comes down to a simple test: if a whole-of-market fixed tariff is priced below the current cap for your usage and region, fixing starts saving you money immediately and protects you from future rises. If the cheapest fix sits above the cap, staying put may cost less in the short term, but you carry the risk of the next quarterly increase.

Martin Lewis’s guidance through 2026 has been that Direct Debit households on the cap should seriously consider fixing when a deal undercuts the cap, rather than defaulting to their own supplier’s offer. Your cheapest tariff depends on your usage pattern and location, so a whole-of-market comparison beats accepting the first fix your existing supplier promotes.

Before you switch, run through these checks:

• Compare the fix against the cap for your own usage, not the national average, since heavy users and light users get different answers.
• Check the exit fees. Some fixes charge a per-fuel exit fee, so leaving early could cost you if a cheaper deal appears.
• Look at the fix length. A longer fix locks in certainty for longer but removes the chance to benefit if the cap falls.
• Factor in the October outlook. If forecasts point to a further rise, fixing before it lands can protect you.

Run a whole-of-market energy comparison

Some suppliers also offer variable tariffs that track below the cap, and time-of-use tariffs that reward shifting usage to cheaper periods. These suit different households, so weigh certainty against flexibility when you compare.

Figures and tariff availability change frequently; always compare against live prices for your postcode.

Why is gas rising more than electricity?

Gas rose more than electricity in July 2026 because the increase was driven by higher wholesale gas prices, and gas unit rates track those wholesale costs more directly than electricity does. Ofgem attributed the rise largely to elevated wholesale gas prices linked to conflict in the Middle East. The result was a gas unit-rate increase of around 24% against an electricity rise of around 5%.

This matters because it changes who is hit hardest. A household that relies on gas for heating, hot water and cooking sees a bigger percentage rise than a home that leans on electricity. All-electric homes and those with heat pumps are relatively insulated from a gas-led increase, though they carry their own exposure when electricity rates climb.

The pricing structure also concentrates the effect on higher users. Because the rise falls on the unit rate rather than the standing charge, the more gas you burn, the larger your increase in cash terms. Cutting gas usage, through insulation or turning the thermostat down, therefore reduces the sting more than it would if the rise had landed on the fixed daily charge.

For the wider context on how these swings ripple through household budgets, our analysis of the impact of energy price changes on UK households goes into more detail.

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What will the October 2026 price cap be?

The October 2026 price cap is forecast to rise by around 2%, but it is not confirmed: Ofgem publishes the actual level for 1 October to 31 December 2026 on 26 August 2026. Until then, any October figure is a forecast, not a settled fact, and should be treated with caution.

Cornwall Insight forecast in late May 2026 that the October to December cap could reach around £1,899 a year on the older usage benchmark, roughly a 2% rise on the July level. That increase would land just as temperatures fall and household energy usage climbs, so its effect on winter bills would be larger than a summer rise of the same size.

Martin Lewis has flagged that a portion of any October rise could fall on the standing charge, which hits lower-usage households harder because they pay the fixed daily charge regardless of how little energy they use. Standing charges have been a long-running concern for consumer campaigners, who argue they penalise those cutting their usage. If you are a low user, watch how any October change is split between unit rates and standing charges before deciding whether to fix now.

Check current energy tariffs before October

Are you actually covered by the price cap?

You are covered by the energy price cap if you are on a standard variable (default) tariff and pay a domestic supplier in England, Scotland or Wales. Roughly two-thirds of domestic customers fall into this group. If you are on a fixed-term tariff, you are not on the cap, so a cap change does not alter your rates until your fixed deal ends.

Northern Ireland is not covered, because it runs a separate energy market with its own arrangements. Prepayment customers are covered, but by a distinct prepayment cap level rather than the Direct Debit figure. Business and non-domestic energy contracts sit entirely outside the cap.

Checking which category you are in matters because it decides what action helps you. If you are on a fix, your job is to note the end date and compare well before it lapses, so you are not rolled onto the cap. If you are on the standard variable tariff, comparing now is what lets you act on the Martin Lewis message and potentially move below the cap.

If a supplier gets a cap change wrong, or you cannot resolve a billing dispute, you can escalate to the Energy Ombudsman after eight weeks or a deadlock letter, and Citizens Advice offers free consumer energy advice. For eligible low-income households, the Warm Home Discount can also cut winter costs separately from the cap.

• Why Are Gas Bills So High? Understanding the Energy Price Cap
• Why is there an energy crisis in the UK? | Free Price Compare
• Understanding the Energy Price Cap Falls – FreePriceCompare
• Impact of Energy Price Changes on UK Households
• Maximizing Savings on Household Energy Bills: A Guide

Information correct as of 1 July 2026. Prices, tariffs, policy details and providers change frequently, so please check the latest details before making a decision. This article is for general information only and does not constitute financial advice. Free Price Compare is authorised and regulated by the Financial Conduct Authority (FCA).