The Fixed One v18

Tariff details for British Gas, including contract notes, price ranges and the supporting metadata we currently hold.

Direct debit supported Cash supported
End date
30 June 2023
Contract length
12 months
Electricity code
The Fixed One v18
Gas code
The Fixed One v18

Tariff overview

The Fixed One v18 was a 12 fixed tariff released on 16 December 2025, with an expected end date around 30 June 2023. This tariff is no longer current, but it may still be useful if you are checking an older bill, reviewing a previous deal, or trying to understand what tariff you were on before moving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.

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Contract snapshot

Contract length
12 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: 38.44p to 57.00p

Direct debit unit rate: 35.33p to 37.75p

Cash standing charge: 43.30p to 62.86p

Cash unit rate: 36.70p to 39.25p

Gas

Regions listed: 14

Direct debit standing charge: 33.75p

Direct debit unit rate: 10.93p to 11.21p

Cash standing charge: 38.33p

Cash unit rate: 11.30p to 11.59p

Multi-rate electricity

Regions listed: 14

Direct debit standing charge: 38.52p to 57.08p

Direct debit day rate: 42.47p to 45.23p

Direct debit night rate: 26.61p to 27.83p

Cash day rate: 43.77p to 46.63p

Cash night rate: 27.91p to 29.23p

Terms

Terms content has not been added yet.

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