Octopus vs British Gas: which is better for your home in 2026?

Last updated: 22 September 2026

Comparing more than two suppliers? Tariffs, exit fees, supplier comparisons and the referral rules are all in my Octopus Energy guides hub.

Quick context: they’re trying to win different types of households

Octopus is the “smart tariff” energy nerd’s favourite: more dynamic pricing options, more app-led account management, and a strong push on renewables and grid-friendly usage. British Gas is the classic big-supplier play: broader mainstream tariffs, more bundling (like boiler cover), and programmes like PeakSave that reward shifting electricity use at certain times.

Joining offers: what you can realistically expect

Octopus is best known for a referral-style joining perk. The headline value is commonly £50 credit, and Octopus states the credit is applied after the new customer has fully switched and their first month’s Direct Debit has been successfully taken. The automated process is typically around four weeks, but it can take longer if a switch is delayed.

British Gas is less consistent on a single “everyone gets £X” joining perk. Instead, it competes on price, bundles, and specific programmes that are only relevant if they match your usage pattern.

The live Octopus link and current eligibility notes are on my Octopus referral guide.

PeakSave Sundays: British Gas’s “cheap power window” explained

British Gas pushes PeakSave Sundays as a simple habit-shift perk: half-price electricity from 11am to 4pm every Sunday. You pay as normal, and British Gas credits half the cost of that electricity back to your bill. It needs a smart meter, and the standing charge is not discounted. Its newer PeakSave Super Sunday tariffs stretch the window to 9am to 5pm, although once you move to one you cannot go back. If you can stack your washing, cooking, dishwashing, and charging during that slot, it can be a meaningful saving.

The catch is obvious: if your household is out on Sundays, or you cannot shift usage, it becomes more of a nice-to-have than a reason to switch. Also, it is a benefit layered onto your tariff, not a magic tariff that is cheapest the rest of the week.

Eligibility and current terms are on British Gas’s own PeakSave page.

Tariffs and pricing style: smart and flexible vs simple and predictable

Octopus tends to suit you if you can shift usage

Octopus has a reputation for “smart” tariffs that can reward flexibility. If you have a smart meter, an EV, battery storage, or you can move heavy usage to cheaper periods, Octopus options can be genuinely compelling. Their EV-specific products (like Intelligent Octopus Go) are designed around automated off-peak charging via the app.

British Gas tends to suit you if you want mainstream fixed deals and add-ons

British Gas is often a better match for households who want straightforward fixed pricing and the option to bolt on services. If you value a one-stop shop for energy plus home cover, it can be the more comfortable choice.

Octopus vs British Gas prices this autumn

Ofgem’s price cap for 1 October to 31 December 2026 is £1,723 a year for a typical dual fuel home paying by Direct Debit, up from £1,663, according to Ofgem’s announcement. That is the benchmark every figure below is measured against.

Octopus publishes its fixed prices for all fourteen regions, so I priced them at Ofgem’s typical use of 2,500 kWh of electricity and 9,500 kWh of gas. British Gas quotes by postcode instead, so its rows show what the tariff promises rather than a price.

Octopus prices are from its public tariff data on 22 September 2026, and the full regional breakdown is in my should you fix your energy tariff guide. So on autumn prices, the British Gas cap-linked deals promise more than an Octopus fix. However, an Octopus flexible tariff costs nothing to leave, and the British Gas rows depend on your quote. Exit fees are charged per fuel, so a £50 fee on a dual fuel account costs £100 to leave. British Gas terms come from its Fix & Fall page.

Switching process: what is actually “normal” now

The UK switching process is designed to be quick. Ofgem requires suppliers to complete a household switch within five working days, and the new supplier must pay you £40 if it misses that. In practice, billing set-up, Direct Debit timing, and final meter reads can make the “admin tail” feel longer, even when the actual switch is done.

If you want a step-by-step walkthrough of what happens after you sign up, use my full guide here: Octopus Energy switch process.

Customer experience: where people notice the difference

Most people do not switch because of a minor unit rate difference. They switch because the experience is painful. Here’s what typically matters in the real world:

• Billing clarity: can you easily understand what you owe and why?
• Account controls: can you change Direct Debit, submit reads, and see credit history without hassle?
• Support speed: when something breaks, how quickly does it get fixed?

Octopus generally “feels” more modern and self-serve. British Gas can be totally fine day-to-day, but the experience tends to vary more depending on tariff and support channel.

Which should you choose?

Choose Octopus if you want the modern, flexible option

• You have a smart meter (or are getting one) and can shift usage.
• You want an app-led account experience and clearer billing tools.
• You care about smarter pricing options (especially if you have an EV).

Choose British Gas if you want a traditional set-up plus extras

• You want a big supplier feel with more mainstream fixed deals.
• You value add-ons like boiler cover and home services.
• PeakSave Sundays matches your household routine (you can load up 11am–4pm).

If the Octopus referral credit is the main reason you’re switching

Keep all referral-specific details on one page so you do not end up following an outdated route. My main guide has the live sign-up link: Octopus referral guide.

Sources worth checking

• Octopus explains when referral credit is applied (after the switch and first successful Direct Debit): Octopus referrals FAQ
• British Gas PeakSave Sundays terms and the 11am–4pm Sunday window: PeakSave Sundays
• Ofgem’s rules on switching times (five working days, or £40 compensation): Ofgem: switching supplier

Disclaimer: Tariffs, programme rules, and referral terms can change. Always check the supplier’s official pages before switching.

More useful guides on CoolCuration

• Energy price cap October 2026 – what the new cap means for a typical bill, and why the rise gets reported two ways.
• Can you leave Octopus anytime? – which Octopus tariffs carry exit fees and which let you walk away free.
• How to read your energy bill – find your unit rates, standing charges and annual usage before you compare.
• Best energy switching bonus UK – credit, vouchers and cheap-hour perks, and how to weigh them against the tariff.
• tado Smart Thermostat X – room-by-room heating control from your phone, whichever supplier you are with.