Direct debit supported Cash supported
Exclusive Fixed Energy v51
Ends 31 May 2026
View tariff pagePrice Promise
Tariff details for British Gas, including contract notes, price ranges and the supporting metadata we currently hold.
Official ismybillfair partner
Direct debit supported Cash supported
End date
31 May 2025
Contract length
18 months
Electricity code
XQY
Gas code
YQY
Tariff overview
Price Promise was a 18 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 This tariff is no longer current, but it may still be useful if you are checking an older bill, reviewing a previous deal, or trying to understand what tariff you were on before moving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 billContract snapshot
- Contract length
- 18 months
- Exit fee
- £75
- Smart meter
- Not required or not listed
- Cash payments
- Supported
Price ranges by region
These summaries show the range of rates we currently hold across regions, rather than one national figure.
Electricity
Regions listed: 14
Direct debit standing charge: 41.25p to 71.66p
Direct debit unit rate: 23.82p to 26.13p
Cash standing charge: 45.51p to 78.00p
Cash unit rate: 25.07p to 27.50p
Gas
Regions listed: 14
Direct debit standing charge: 31.16p to 32.43p
Direct debit unit rate: 5.85p to 6.28p
Cash standing charge: 35.57p to 35.59p
Cash unit rate: 6.16p to 6.61p
Multi-rate electricity
Regions listed: 14
Direct debit standing charge: 41.22p to 71.40p
Direct debit day rate: 26.77p to 29.58p
Direct debit night rate: 17.00p to 18.50p
Cash day rate: 27.95p to 30.87p
Cash night rate: 18.22p to 19.76p
Terms
Terms content has not been added yet.
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