Fixed Tariff Sep27 v10

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 September 2027

Contract length

14 months

Electricity code

X4K

Gas code

Y4K

Tariff overview

Fixed Tariff Sep27 v10 is a 14 month fixed tariff released on 14 July 2026. It is due to end around 30 September 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.

Key points

Avoid price rises
For loyal customers

Check my bill

Contract snapshot

Contract length: 14 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: 44.65p to 70.62p

Direct debit unit rate: 25.09p to 27.65p

Cash standing charge: 51.99p to 79.49p

Cash unit rate: 26.48p to 29.19p

Gas

Regions listed: 14

Direct debit standing charge: 28.39p to 29.38p

Direct debit unit rate: 7.18p to 7.52p

Cash standing charge: 36.55p to 36.56p

Cash unit rate: 7.56p to 7.92p

Multi-rate electricity

Regions listed: 14

Direct debit standing charge: 44.22p to 69.81p

Direct debit day rate: 30.21p to 33.53p

Direct debit night rate: 14.19p to 15.14p

Cash day rate: 31.64p to 35.17p

Cash night rate: 15.26p to 16.28p

Terms

energy-terms/ChTCd3B0WYCTq9yyQNRb3cGqh58tlOhC98J1m7De.pdf

Related tariffs

Direct debit supported Cash supported

Fixed Tariff v85

Ends 31 August 2026

View tariff page

Direct debit supported Cash supported

Fixed Tariff v87

Ends 31 August 2026

View tariff page

Direct debit supported Cash supported

Fixed Tariff v88

Ends 31 August 2026

View tariff page

Direct debit supported Cash supported

Fixed Tariff v89

Ends 31 August 2026

View tariff page

Save with your current British Gas tariff in just 60 seconds

Enter your postcode to get started

Enter your postcode

We'll check your suppliers best deals

Don't just take our word for it

Join households across the UK who asked ismybillfair