The Long Fix v18

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

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Direct debit supported Cash supported
End date
31 January 2027
Contract length
24 months
Electricity code
XLF
Gas code
YLF

Tariff overview

The Long Fix v18 is a 24 month fixed tariff released on 16 December 2025. It is due to end around 31 January 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.

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Contract snapshot

Contract length
24 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: 37.73p to 68.25p

Direct debit unit rate: 23.11p to 25.61p

Cash standing charge: 42.36p to 74.91p

Cash unit rate: 24.35p to 26.98p

Gas

Regions listed: 14

Direct debit standing charge: 27.46p to 28.15p

Direct debit unit rate: 6.08p to 6.51p

Cash standing charge: 32.45p to 32.48p

Cash unit rate: 6.40p to 6.85p

Multi-rate electricity

Regions listed: 14

Direct debit standing charge: 38.98p to 69.25p

Direct debit day rate: 28.56p to 32.13p

Direct debit night rate: 13.05p to 13.94p

Cash day rate: 29.87p to 33.65p

Cash night rate: 14.05p to 14.93p

Terms

Terms content has not been added yet.

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