The Longer Fix v20

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

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

Tariff overview

The Longer Fix v20 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.

Check my bill

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: 37.59p to 66.65p

Direct debit unit rate: 21.78p to 24.53p

Cash standing charge: 42.00p to 72.98p

Cash unit rate: 22.96p to 25.82p

Gas

Regions listed: 14

Direct debit standing charge: 27.79p to 28.46p

Direct debit unit rate: 5.80p to 6.24p

Cash standing charge: 32.55p to 32.57p

Cash unit rate: 6.11p to 6.58p

Multi-rate electricity

Regions listed: 14

Direct debit standing charge: 37.50p to 66.34p

Direct debit day rate: 27.44p to 30.74p

Direct debit night rate: 11.56p to 13.53p

Cash day rate: 28.70p to 32.17p

Cash night rate: 12.51p to 14.48p

Terms

Terms content has not been added yet.

Related tariffs

Direct debit supported Cash supported

Fixed Tariff v95

Ends 31 October 2026

View tariff page
Direct debit supported Cash supported

Fixed Tariff Oct26 v1

Ends 31 October 2026

View tariff page
Direct debit supported Cash supported

Fixed Tariff Oct26 v2

Ends 31 October 2026

View tariff page
Direct debit supported Cash supported

Fixed Tariff Oct26 v3

Ends 31 October 2026

View tariff page

Save with your current British Gas tariff in just 60 seconds

Enter your postcode to get started

We'll check your suppliers best deals

Don't just take our word for it

Join households across the UK who asked ismybillfair