Fixed Tariff 18M v4

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 2026
Contract length
18 months
Electricity code
XMR
Gas code
YMR

Tariff overview

Fixed Tariff 18M v4 was a 18 fixed tariff released on 16 December 2025, with an expected end date around 30 June 2026. This tariff is no longer current, but it may still be useful if you are checking an older bill, reviewing a previous deal, or trying to understand what tariff you were on before moving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
18 months
Exit fee
£50
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: 32.96p to 60.91p

Direct debit unit rate: 21.73p to 24.11p

Cash standing charge: 37.37p to 67.24p

Cash unit rate: 22.91p to 25.41p

Gas

Regions listed: 14

Direct debit standing charge: 25.33p to 29.04p

Direct debit unit rate: 5.80p to 6.20p

Cash standing charge: 29.44p to 33.23p

Cash unit rate: 6.11p to 6.54p

Multi-rate electricity

Regions listed: 14

Direct debit standing charge: 30.47p to 58.19p

Direct debit day rate: 26.89p to 30.26p

Direct debit night rate: 12.43p to 13.27p

Cash day rate: 28.14p to 31.71p

Cash night rate: 13.38p to 14.22p

Terms

Terms content has not been added yet.

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