Exclusive Fixed Energy v51
Ends 31 May 2026
View tariff pageTariff details for British Gas, including contract notes, price ranges and the supporting metadata we currently hold.
Official ismybillfair partner
Fixed Tariff Sep25 v2 was a 13 fixed tariff released on 16 December 2025, with an expected end date around 30 September 2025. This tariff is no longer current, but it may still be useful if you are checking an older bill, reviewing a previous deal, or trying to understand what tariff you were on before moving elsewhere.
Check my billThese summaries show the range of rates we currently hold across regions, rather than one national figure.
Regions listed: 14
Direct debit standing charge: 39.43p to 65.31p
Direct debit unit rate: 22.41p to 24.68p
Cash standing charge: 43.69p to 71.65p
Cash unit rate: 23.52p to 25.90p
Regions listed: 14
Direct debit standing charge: 24.96p
Direct debit unit rate: 6.21p to 6.58p
Cash standing charge: 28.13p to 29.39p
Cash unit rate: 6.49p to 6.88p
Regions listed: 14
Direct debit standing charge: 39.43p to 65.31p
Direct debit day rate: 24.46p to 27.06p
Direct debit night rate: 13.61p to 14.31p
Cash day rate: 25.63p to 28.38p
Cash night rate: 14.50p to 15.19p
Terms content has not been added yet.
Ends 31 May 2026
View tariff pageEnds 31 May 2026
View tariff pageEnds 31 May 2026
View tariff pageEnds 31 May 2026
View tariff pageEnter your postcode to get started
Join households across the UK who asked ismybillfair