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 Lighter 12M was a 12 fixed tariff released on 16 December 2025, with an expected end date around 31 May 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 This tariff is no longer current, but it may still be useful if you are checking an older bill, reviewing a previous deal, or trying to understand what tariff you were on before moving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: 35.31p to 65.72p
Direct debit unit rate: 23.41p to 25.91p
Cash standing charge: 39.56p to 72.07p
Cash unit rate: 24.67p to 27.26p
Regions listed: 14
Direct debit standing charge: 21.15p to 24.50p
Direct debit unit rate: 5.84p to 6.49p
Cash standing charge: 24.69p to 28.25p
Cash unit rate: 6.16p to 6.83p
Regions listed: 14
Direct debit standing charge: 35.27p to 65.46p
Direct debit day rate: 27.21p to 30.03p
Direct debit night rate: 13.44p to 16.77p
Cash day rate: 28.48p to 31.47p
Cash night rate: 14.47p to 17.80p
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