Octopus Energy gas tariffs & dual fuel explained
Search for an "Octopus gas tariff" and you won't find a standalone product, because Octopus doesn't sell one. Gas is supplied as part of dual fuel, or it sits on the same tariff family as your electricity, so the tariff you pick — a fixed deal, the standard flexible rate, or a smart tariff once you've joined — covers both fuels. Here's how that actually works, what you're paying for, and how to switch your gas across without losing money.
Search for an "Octopus gas tariff" and you won't find a standalone product, because Octopus doesn't sell one. Gas is supplied as part of dual fuel, or it sits on the same tariff family as your electricity, so the tariff you pick — a fixed deal, the standard flexible rate, or a smart tariff once you've joined — covers both fuels. Here's how that actually works, what you're paying for, and how to switch your gas across without losing money.
Why there's no standalone 'Octopus gas tariff'
Suppliers price gas and electricity separately under the bonnet, but you don't buy them as separate products — you choose one tariff that sets the rates for both. Octopus markets tariffs by name, not by fuel: the current 12-month fixed deal, the standard flexible (variable) rate everyone lands on by default, and the smart tariffs like Tracker. Each of those carries a gas price and an electricity price within the same plan. So when people google 'Octopus gas tariff', the real question is usually 'what does Octopus charge for gas, and how do I get it' — and the answer is whichever tariff you're on, applied to your gas supply.
What you actually pay for: unit rates and standing charges
Every gas bill has two parts. The unit rate is the price you pay for each kWh of gas you burn; it's set by the wholesale market and the price cap, so the per-unit price is the same whether you use a little or a lot — what changes with your usage is how many units you're billed for. The standing charge is a fixed daily fee you pay just for being connected to the gas network, regardless of whether you use any gas that day; it covers the cost of maintaining the pipes, the meter and the wider system. Electricity has its own matching pair: a separate unit rate and a separate standing charge. That's why a near-empty bill still shows a charge.
How much Octopus charges for gas
Both your gas unit rate and standing charge are capped and vary by region, and they reset every quarter, which is exactly why this page won't quote you a pence-per-kWh figure or an annual total — any number printed here would be out of date within weeks and wrong for half the country. For honest context, the price cap rose by around 13.5% in the July 2026 update, to roughly £1,862 a year for a typical dual-fuel home, so gas and electricity both got dearer. For the live rates that apply to your postcode and tariff, check octopus.energy directly before you decide.
Dual fuel or gas-only with Octopus
Most Octopus customers take both fuels from them — that's dual fuel: one account, one monthly Direct Debit, one app, and a single smart-meter setup that reports your gas and electricity together. You can also be electricity-only or, less commonly, gas-only, and Octopus will supply a single fuel where that's your situation. Being honest about it: dual fuel doesn't always come with a big headline discount the way it once did, so the main wins are simplicity and a tidier setup rather than a guaranteed saving. If your gas and electricity are currently with two different suppliers, bringing them under one roof is mostly about convenience and getting both fuels onto the same smart tariffs later.
Where gas sits on the smart tariffs
This trips people up, so it's worth being precise. Octopus Tracker prices both fuels day by day, so it genuinely affects your gas as well as your electricity. The time-of-use electricity tariffs — Agile, Intelligent Octopus Go, Cosy — are electricity-only and sit alongside a standard flexible gas rate; they reward you for shifting electricity use (an EV, a heat pump, the dishwasher) to cheaper windows, while your gas just ticks along on the normal rate. Crucially, none of these are open to sign up from cold: you have to be an Octopus customer with a working smart meter first. The usual route is to join Octopus on an ordinary tariff, then move onto a smart tariff for free once you're in — which is where the referral below comes in.
Switching your gas to Octopus: what to expect
Switching is protected by the Energy Switch Guarantee, so there's far less to it than people fear. You keep the same gas pipes, the same meter and the same physical supply — nothing is dug up, no engineer visits, and your gas never actually goes off. Octopus simply takes over billing for the supply you already have, and it typically completes in around five working days. Prepayment and pay-as-you-go customers can switch too. Octopus is the UK's largest electricity supplier, serving roughly one in four GB homes, runs on 100% renewable electricity, and is a multi-year Which? Recommended Provider rated 'Excellent' on Trustpilot — so this isn't a fringe supplier, it's a mainstream one with a real safety net behind it.
Join through the link here and get £50
If you're going to move your gas (and electricity) to Octopus anyway, do it through the referral link on this page and Octopus credits £50 to you. It lands as credit on your energy account, not cash, and it's paid automatically once your switch fully completes and your first monthly Direct Debit clears, usually around four weeks, occasionally longer if your old supplier drags its feet. You don't enter a code anywhere; clicking through the link is what links the bonus to your account. The one thing that quietly cancels it is signing up via a price-comparison or switching site like Uswitch or GoCompare, because Octopus then pays them the bonus instead of you. We're an independent site, not Octopus itself — but the link costs you nothing, the £50 is real, and once you're a customer you can move onto any of the smart tariffs above for free.
FAQs
How much is the Octopus Energy referral credit?+
£50 of credit when you switch to Octopus through a referral link. Business and charity switches get £75. It’s added straight to your Octopus energy account.
Is the Octopus referral code still working in 2026?+
Yes. The scheme is active and we re-verify our code on the 1st of every month. We last confirmed it works on 1 June 2026.
How long does it take to get the £50 credit?+
It’s paid automatically once your switch completes and your first monthly Direct Debit has been taken — usually around 4 weeks after you join. No claim needed.
Is this an official Octopus Energy offer?+
Yes — the £50 referral credit is Octopus’s own scheme. Octopus Energy Referral is an independent guide, not affiliated with Octopus, but the link takes you straight to Octopus’s website where you sign up directly with them.
Ready to switch? Use my link and get £50 — it costs you nothing.
Switch to the UK’s most awarded energy supplier! Switch to Octopus Energy and you’ll get £50 credit once your switch is complete. T&Cs apply (only one switching offer per household).