Changing your energy tariffs

Lock in our fixed tariff today

Our existing customers can switch to our new fixed tariffs - £100+ below the price cap.

And, if we bring out a cheaper fixed tariff in the future, you can switch for free.1

Log in to change tariff

Why stay with British Gas?

  • Getting a new deal is easy - choose a new tariff in just a few minutes online
  • Great rates - as good as, or better than, those available to new customers switching to us
  • Save more - with half-price electricity every Sunday when you join Peak Save
  • No exit fees - we don’t charge exit fees if you choose a new fixed tariff with us
  • No waiting - switch deal today and your new tariff starts tomorrow
  • Get rewarded when you refer a friend - share up to £150 in Amazon gift cards if your friends and families switch their energy to us

Fixed or variable tariffs?

Should you choose a fixed or variable energy tariff? We explain fixed rate and variable rate energy tariffs so you can decide.

Learn more about fixed vs variable tariffs.

Tariffs we have available

  • Fixed energy tariffs
  • Lock your energy prices and avoid any price rises.

  • Standard Variable
  • Our flexible plans where prices can go up or down.

  • Safeguard PAYG
  • Available to Pay As You Go customers.

  • Electric vehicle tariffs
  • Get our lowest electricity rates overnight with our EV tariff and charge your car for less.​

Log in to see your options

Half-price electricity every Sunday

We’re proud partners of Team GB and ParalympicsGB – get set for your big event every Sunday with half-price electricity from 11am to 4pm.

More about PeakSave

What else can you get?

Smart meters

Keep an eye on how much you're spending, and only pay for what you use.

Learn about smart meters

HomeCare Cover

Avoid the cost and hassle of finding a last-minute engineer with our HomeCare boiler and heating cover.

Get HomeCare

New boiler installs

Upgrade to an A-rated boiler with interest-free credit and £0 deposit. Includes expert installation and up to 12 years’ warranty.

New boiler quote

Frequently asked questions

If I change my tariff, will I still get PeakSave?

Yes, PeakSave is available to all electricity customers with a smart meter, no matter what tariff you choose.

Can I change my tariff without exit fees?

If you’re on a fixed tariff, then you can swap to another available fixed tariffs without paying exit fees.

If you’re on a fixed tariff, and you want to move to our Standard Variable tariff, then an exit fee will be applied. 

There’s never an exit fee to pay if you move from our Standard Variable tariff to a fixed tariff.

Additional information

  1. Based on our currently available fixed-term tariffs compared with Ofgem’s price cap for the period 1st April 2024 to 30th June 2024. The energy price cap starting 1 April 2024 is £1,690 a year for a typical household who use gas and electricity and pay by Direct Debit. This is based on an annual gas usage of 11,500 kWh and annual electricity usage of 2,700 kWh. Eligibility and terms and conditions apply.