Cheapest Gas-Only Tariff to Switch to Now in the UK (June 2026)
Gas bills are about to jump +24% in July. Here is how to find a cheap gas-only fix, what the new cap rates mean for standalone gas customers, and how to switch in five working days.
July 2026 Ofgem Cap: What It Means for Gas-Only Customers
Ofgem announced on 27 May 2026 that the energy price cap will rise from 1 July 2026 to a typical dual-fuel equivalent of £1,862/yr — up £221 (+13%) from the current £1,641/yr. For gas-only accounts the picture is sharper: gas unit rates jump by +24% while electricity rises by a comparatively modest +5%.
If you buy your gas and electricity from different suppliers — or you only have a gas supply (for example gas central heating in a property with solar or a heat pump covering electricity) — you are fully exposed to that gas-side rise unless you lock in a fixed deal before 1 July.
Roughly 22 million accounts (40% of all energy customers) are already on fixed deals and will not feel this cap rise immediately. Those remaining on variable or standard variable tariffs (SVTs) will see bills climb automatically on 1 July. Switching to a fixed gas-only tariff now is the single most effective action you can take.
Gas Rate Changes at a Glance
| Rate | Apr–Jun 2026 (now) | Jul–Sep 2026 (cap) | Change |
|---|---|---|---|
| Gas unit rate | ~5.91p/kWh | 7.33p/kWh | +24% |
| Gas standing charge | ~32p/day | 29.04p/day | -9% |
| Electricity unit rate | ~24.7p/kWh | 26.11p/kWh | +5% |
| Electricity standing charge | ~61p/day | 57.19p/day | -6% |
| Typical dual-fuel bill | £1,641/yr | £1,862/yr | +£221 (+13%) |
Rates are Ofgem price cap figures for a typical UK home (11,500 kWh/yr gas, 2,700 kWh/yr electricity) paying by direct debit. Your actual rate will vary by region and supplier.
Gas-Only vs Dual-Fuel: Which Is the Cheaper Way to Buy?
Many suppliers offer a small discount (typically £5–£25/yr) if you take both gas and electricity from them as a dual-fuel customer. However, this is not always the better deal. Gas-only buying makes sense in several scenarios:
When gas-only wins
- Your electricity supplier has a much cheaper deal you want to keep
- You generate your own electricity (solar panels, heat pump)
- Your property has gas central heating only and no mains electricity meter
- A gas-only fixed deal beats every available dual-fuel equivalent on unit rate
When dual-fuel wins
- The supplier dual-fuel discount is larger than any gas-only saving
- You want a single bill and a single point of contact
- Neither your gas nor electricity is currently fixed and you want to lock both in at once
- Smart tariffs (time-of-use EV charging, export) that require both meters with one supplier
| Factor | Gas-Only | Dual-Fuel |
|---|---|---|
| Bills & management | Separate | Combined |
| Potential discount | None | £5–£25/yr |
| Flexibility to choose best deals | High | Lower |
| Best for solar/EV owners | Often yes | Depends |
| Switching complexity | Low (one meter) | Low (coordinated) |
The bottom line: if a gas-only fixed tariff undercuts the gas portion of any dual-fuel deal by more than £20/yr, it is almost certainly worth going gas-only regardless of convenience.
Best Gas-Only Fixed Deals Right Now (June 2026)
Several reputable suppliers are offering 12-month fixed tariffs priced below the incoming July 2026 cap. Illustrative examples based on a typical 11,500 kWh/yr gas home:
E.ON Next Fixed
~£1,602/yr gas only (illustrative)
12-month fix, no exit fees on some products. Reputable supplier with UK customer service.
Octopus 12M Fixed
~£1,632/yr gas only (illustrative)
Popular choice for smart meter users. Highly rated for app, billing, and support. No punitive exit fees.
Other reputable options
EDF, OVO, British Gas, Utility Warehouse, Good Energy
All offer gas-only or dual-fuel fixed products. Compare via the form below for your exact postcode and meter reading.
Note: Illustrative annual costs are estimates based on Ofgem typical consumption. Actual quotes depend on your postcode, meter type, and current usage. Always compare using your own meter reads. Prices correct as of June 2026 but change daily — use the comparison tool below for live quotes.
Find the cheapest gas-only tariff
Enter your details below to compare live gas-only and dual-fuel fixed deals for your home. Switching takes around five working days and is guaranteed by the Energy Switch Guarantee.
How to Switch Your Gas-Only Tariff in 5 Steps
Switching gas supplier is simpler than most people expect. The Energy Switch Guarantee protects the process: most switches complete within five working days and you have a 14-day cooling-off period.
- Get your latest gas meter reading — grab a current read (not an estimate) so quotes are accurate and your final bill from your old supplier is correct.
- Compare gas-only fixed tariffs — use the comparison tool above, entering your postcode and annual usage (check a recent bill; typical UK home = 11,500 kWh/yr).
- Select a fix below the July 2026 cap rate — prioritise deals that lock in a unit rate below 7.33p/kWh to beat the incoming rise.
- Apply with your new supplier — you will need: name, address, meter serial number, current meter reading, bank details for direct debit. The new supplier handles the rest.
- Sit back — switch completes in ~5 working days — your new supplier notifies you of the switch date. Your old supplier sends a final bill based on your meter reading. No engineer visit needed for a gas-only switch.
You cannot be disconnected during a switch and you cannot be left without gas. If you change your mind, the 14-day cooling-off right lets you cancel for free.
Frequently Asked Questions
Can I switch gas supplier separately from my electricity?
Yes. Gas and electricity are separate meters and can be switched independently at any time. Many households keep electricity with one supplier and gas with another to get the best available unit rate on each fuel.
What is the gas unit rate under the July 2026 Ofgem cap?
From 1 July 2026 the Ofgem cap sets a maximum gas unit rate of 7.33p/kWh and a standing charge of 29.04p/day. These are cap ceilings, not flat prices — suppliers can charge less. Fixed tariffs from reputable suppliers are currently available below this level.
How much gas does a typical UK home use per year?
Ofgem uses 11,500 kWh/yr as the typical figure for a three-bedroom home with gas central heating and a gas hob. Smaller homes or those with good insulation may use 7,000–9,000 kWh; larger or older properties can exceed 15,000 kWh.
Will I lose my gas supply during a switch?
No. The gas infrastructure (pipes) belongs to your regional network operator, not your supplier. Only the billing relationship changes. Your supply is continuous and the Switch Guarantee means the process is protected end to end.
Is a gas-only fixed tariff worth it with the July 2026 rise?
If you can find a fix priced below 7.33p/kWh for at least 12 months, yes — you will pay less than the cap for the whole fixed term regardless of how the cap moves in October 2026 or beyond. The key is to act before 1 July so you beat the Q3 rise from day one.
Are there exit fees on fixed gas tariffs?
It varies by product. Many 12-month fixed tariffs from Octopus, E.ON Next, and others carry no exit fees, letting you leave early if a better deal appears. Always check the product terms before signing. Tariffs with exit fees (sometimes £30–£75) may offer a slightly lower unit rate in exchange.
What happens after my fixed gas tariff ends?
When a fixed term expires, most suppliers move you automatically to their standard variable tariff, which is capped by Ofgem but changes quarterly. Set a calendar reminder for one month before your deal ends and compare again to lock in your next fix before you revert.
Can I get a gas-only tariff without a smart meter?
Yes. All major suppliers accept traditional credit meters (non-smart) for gas-only fixed tariffs. However, having a smart meter makes switching easier (no manual reads) and may unlock additional tariff options, including time-of-use products linked to off-peak gas pricing in future.
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