Cheapest gas tariff to switch to right now (UK, July 2026)

The July 2026 Ofgem price cap is now confirmed and rises 13% on 1 July, so a sub-cap 12-month gas fix is more valuable than it has been all year. Outfox the Market, So Energy, E.ON Next and Octopus all have gas fixes priced 3-7% below the current cap.

  • Top 6 gas-cheap fixes available in June 2026 (with annual cost estimates)
  • What the confirmed 1 July 2026 cap rise (+13%) means for switchers
  • Gas-only vs dual-fuel: which actually wins in 2026
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Indicative direct-debit pricing for typical-use households (9,500 kWh gas under the new July TDCV). Your actual price depends on your region, payment method and consumption.

Fast answer (June 2026)

The cheapest gas-only fix right now is Outfox the Market Gas Fix'd at around 5.4p/kWh + 28p/day standing — roughly £750/yr for a typical-use home and well below the new July cap. The cheapest dual-fuel fix is the same supplier's combined product at about £1,612/yr, around £250 under the £1,862 Q3 cap.

The July 2026 cap is now confirmed: Ofgem set it at £1,862/yr on 27 May, a 13% rise (+£221) from the April–June cap, effective 1 July — driven mostly by a ~24% jump in gas. With the cap going up, a 12-month gas fix that is 3% or more below the current cap locks in certainty across winter 2026/27.

If you have gas only (e.g. you've already gone solar + heat-pump for electricity), a single-fuel gas switch is straightforward; if you also need electricity, dual-fuel is usually cheaper than two separate single-fuel deals once standing charges are combined.

Cheapest gas-only fixes — June 2026

Supplier / tariff Unit (p/kWh) Standing (p/day) Est. annual
Outfox the Market — Gas Fix'd 12m~5.4~28~£750
So Energy — So Bluebell Gas 12m~5.5~29~£762
E.ON Next — Pledge Gas Fixed 12m~5.6~29~£775
Octopus Energy — 12M Gas Fixed~5.7~29~£786
EDF — Essentials Gas 1Yr~5.8~30~£797
OVO — Greener Gas Fix~5.9~30~£807

Indicative GB-average rates for typical use (Ofgem's new July TDCV is 9,500 kWh gas) — your postcode-specific price will differ.

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Gas-only vs dual-fuel in 2026 — which actually wins?

Suppliers usually price the cheapest fix for dual-fuel customers. The maths in June 2026 looks like this for a typical home (around 9,500 kWh gas + 2,500 kWh electricity on the new July TDCV, GB average):

  • Dual-fuel fix (best on panel): ~£1,612/yr — Outfox the Market Fix'd Dual
  • Two single-fuel fixes (gas + electricity separately): ~£1,648/yr
  • Dual-fuel saves ~£36/yr on standing charges and combined billing.

Exception: if you have solar PV with net export contracts (SEG) and are loyal to your export supplier, splitting gas to a separate cheaper supplier can sometimes win — usually by £10–£30/yr, so worth a quick check.

Common pitfalls

Headline unit rate

5.4p sounds great until the standing charge is 32p/day. Compare on total annual cost.

Exit fees on your current fix

£25–£75 per fuel mid-term. Free to leave in the last 49 days.

Cashback conditions

Some sub-cap deals only beat the cap with cashback included. Read the payout terms.

Switching mid heating season

Submit a meter reading on the day of switch — final/opening reads avoid disputes on summer balances.

Gas switching FAQs (June 2026)

Yes, for most people. The cap rose 13% on 1 July, so any 12-month fix already priced 3% or more below the current cap now beats the new cap by an even wider margin and locks in certainty across winter 2026/27.
OVO Greener Gas Fix uses 15% biomethane plus carbon offsets. Ecotricity and Good Energy offer 100% green-gas options with a small premium. The other suppliers offer offset-based green add-ons.
Yes. If you're tied to a specific Smart Export Guarantee (SEG) supplier for export, splitting gas to a separate cheaper supplier is normal and supported.
Around 5 working days end-to-end, including the 14-day cooling-off period. You stay supplied throughout.
Gas Safe records are independent of supplier. Switching has no impact on your boiler service or warranty arrangements.
Trackers like Octopus Tracker Gas and EDF Ensure can be cheaper on average but expose you to seasonal moves. With the cap having just risen, a 12-month fix below cap is usually the safer pick for cost certainty across winter 2026/27.

How we assess this

Last updated
June 2026

Tariff snapshot taken in June 2026 from the EnergyPlus switching panel and confirmed against supplier websites. Annual cost figures use Ofgem Typical Domestic Consumption Values (TDCV) and the confirmed Q3 2026 cap (£1,862/yr, effective 1 July) as the reference.

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Sources

Switch your gas now the July cap has risen

Lock in a 12-month fix priced below the £1,862 Q3 2026 cap — free quote in under a minute.

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Updated on 13 Jul 2026