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
The Longer Fix v39 is a 24 month fixed tariff released on 16 December 2025. It is due to end around 31 August 2027. This tariff is not currently available for new switches. This type of tariff is usually aimed at customers who want price certainty for a set period, so the main things to review are the tariff end date, any exit fees, and what happens when the fixed term finishes.
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: 39.98p to 65.33p
Direct debit unit rate: 24.95p to 27.82p
Cash standing charge: 47.89p to 73.52p
Cash unit rate: 26.36p to 29.35p
Regions listed: 14
Direct debit standing charge: 27.14p to 27.85p
Direct debit unit rate: 5.96p to 6.41p
Cash standing charge: 35.23p to 35.25p
Cash unit rate: 6.29p to 6.77p
Regions listed: 14
Direct debit standing charge: 40.18p to 64.74p
Direct debit day rate: 31.82p to 34.33p
Direct debit night rate: 12.76p to 14.40p
Cash day rate: 33.32p to 35.99p
Cash night rate: 13.77p to 15.45p
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