Octopus Energy Fixed Tariff October 2026

As of 9 October 2026, Ofgem’s dual-fuel Direct Debit price cap is £1,723 through 31 December 2026.

Octopus 18M Fixed works out at about £1,789 a year and 12M Fixed at about £1,896 for a typical home, both above the cap. Compare your postcode before you lock in. Enter your postcode on MoneySuperMarket, about 2 minutes.

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Comparing an Octopus fixed tariff with the October 2026 price cap

Should you fix with Octopus or stay under the price cap?

Last updated: Friday 9 October 2026 (Europe/London).
By: Switch Editorial Team, Switch Squid Ltd
As of 9 October 2026, Octopus sells two fixed tariffs: Octopus 12M Fixed at about £1,896 a year and Octopus 18M Fixed at about £1,789 a year for a typical dual-fuel home paying by Direct Debit. Both cost more than Ofgem’s £1,723 cap for 1 October to 31 December 2026.
Those yearly figures are averages across Octopus’s regional prices for typical use of 2,500 kWh of electricity and 9,500 kWh of gas, so treat them as a guide. Octopus re-priced both fixes on 9 October 2026. Your own quote depends on your postcode, meter and usage.
A fix is worth taking only if you expect the cap to rise from January 2027 by more than the gap you pay now, which is about £66 a year on 18M Fixed and about £173 a year on 12M Fixed. Compare the whole market before you lock in. We may earn a commission if you buy through MoneySuperMarket via our link.
Sources (checked 9 October 2026): Octopus Energy tariffs, Octopus Energy published product list, Octopus: how do I change tariffs?, Ofgem price cap, MoneySuperMarket energy comparison. For fixes from every supplier, see our cheapest fixed energy deals for October 2026.

Octopus fixed tariffs vs the £1,723 cap

Typical dual-fuel home, Direct Debit, 2,500 kWh electricity and 9,500 kWh gas a year. Octopus figures are averages of its regional prices on 9 October 2026, so your postcode quote will differ.

TariffRates fixed forAbout a year (typical home)vs the £1,723 capExit fee if you leave early
Octopus 18M Fixed18 months£1,789About £66 more£75 per fuel
Octopus 12M Fixed12 months£1,896About £173 more£50 per fuel
Flexible OctopusVariable, changes every three monthsFollows wholesale pricesVariableNone
Ofgem price cap (default tariffs)1 October to 31 December 2026£1,723None

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Which Octopus tariff suits you in October 2026?

Match the tariff to how you want to handle the £1,723 cap. Live prices depend on your postcode.

1

Octopus 18M Fixed

The cheaper of the two fixes on a typical home, with rates locked for 18 months and a £75 per fuel exit fee. Suits people who expect prices to rise and plan to stay put.

2

Octopus 12M Fixed

One year of fixed rates and a £50 per fuel exit fee. Costs more than 18M Fixed on a typical home, but ties you in for less time.

3

Flexible Octopus

A variable tariff that moves every three months with wholesale prices. No exit fees. Suits people who think prices may fall or want to keep their options open.

4

Smart tariffs

Intelligent Octopus Go, Octopus Go, Cosy Octopus, Flux and Agile need a smart meter, and most suit an EV, heat pump, battery or flexible usage.

See an Octopus fix for your postcode

Whether 12M or 18M Fixed beats the £1,723 cap depends on your region and usage. Compare whole-of-market quotes, including Octopus, before you lock in. Enter your postcode on MoneySuperMarket, about 2 minutes.
Choose this plan

You'll compare on our partner MoneySuperMarket and enter your postcode there. It takes about 2 minutes.

Already with Octopus? Renewing and loyal fixes

Existing customers change tariff in their Octopus online account by choosing ‘Change my tariff’, where Octopus compares your costs on your current tariff with its other tariffs. Octopus says you will see this option if you are on a variable tariff such as Flexible Octopus, or within 45 days of the end of a fixed tariff.
Octopus prices some fixes for existing customers and labels them ‘Loyal’. Its published product list on 9 October 2026 includes Intelligent Octopus Go 12M Loyal Fixed for EV drivers. If your account offers a Loyal 12-month fix, check the unit rates, standing charges, end date and exit fee in the offer, then compare the yearly cost with the open-market 12M Fixed and the £1,723 cap.
If you do nothing when a fix finishes, you move to Flexible Octopus, which has no exit fees. Under Ofgem rules, exit fees do not apply in the last 49 days of a fixed term, so that is the window to compare Octopus’s renewal offer with the rest of the market.

Coming to the end of an Octopus tariff?

What to check before you renew or switch.

Your situationExit fee?What to do
On Flexible OctopusNoCompare now. You can move to a fix or another supplier at any time.
Last 49 days of a fixNo, under Ofgem rulesCompare your renewal offer with the wider market before rolling onto Flexible Octopus.
Part-way through 12M FixedYes, £50 per fuelWork out the yearly saving minus the exit fee. Switch only if you come out ahead.
Part-way through 18M FixedYes, £75 per fuelWork out the yearly saving minus the exit fee. Switch only if you come out ahead.

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Fixed vs Flexible Octopus

Fixed Octopus keeps your price the same for 12 or 18 months, no matter what the market does. Octopus suggests a fix if you value certainty in your budget, think prices might rise soon and do not plan to leave, because exit fees apply.
Flexible Octopus is a variable tariff. Octopus says its rates rise or fall every three months in line with wholesale prices, and it has no exit fees. It suits people who think prices might fall or who may want to change their mind.
In October 2026 both Octopus fixes cost more than the cap for a typical home. Paying a little more now buys protection if the cap rises in January 2027. If it does not rise by enough, Flexible Octopus or a cheaper fix from another supplier could cost less.

Check Octopus against the rest of the market

Home energy only. Compare Octopus and other suppliers on your postcode and usage before you fix into 2027. Enter your postcode on MoneySuperMarket, about 2 minutes.
Check availability

You'll compare on our partner MoneySuperMarket and enter your postcode there. It takes about 2 minutes.

Octopus fixed tariffs at a glance: October 2026

£1,789

Octopus 18M Fixed, about a year

Typical home, regional average, 9 Oct 2026

£1,896

Octopus 12M Fixed, about a year

Typical home, regional average, 9 Oct 2026

£50 / £75

Exit fee per fuel

12M Fixed / 18M Fixed

£1,723

Ofgem cap, Oct to Dec 2026

Typical dual-fuel Direct Debit household

Octopus fixed tariffs: honest pros and cons

What an Octopus fix does well, and what to watch.

Pros

Choice of 12-month and 18-month fixes

Rates and standing charges stay the same for the whole term

Flexible Octopus has no exit fees if you would rather not fix

Smart tariffs for EVs, heat pumps, batteries and flexible usage

Cons

Both fixes cost more than the £1,723 cap for a typical home in October 2026

Exit fees: £50 per fuel on 12M Fixed, £75 per fuel on 18M Fixed

Octopus re-prices its fixes often, so a quote can change within days

Smart tariffs need a smart meter and the right kit

How to compare an Octopus fix

You compare home energy on MoneySuperMarket. Have your annual kWh from a recent bill to hand.

1

Compare

Enter your postcode and usage. Octopus appears alongside other suppliers, ranked by estimated yearly cost.

2

Choose

Pick the tariff whose quote beats staying on the cap after exit fees. Check the fix length and exit fee before you confirm.

3

Switch

Your new supplier handles the switch. It usually takes up to five working days, with a 14-day cooling-off period. Take a meter reading on switch day.

Octopus Energy fixed tariff questions

Do Octopus Energy have fixed tariffs?

Yes. In October 2026 Octopus sells Octopus 12M Fixed and Octopus 18M Fixed, which lock your unit rates and standing charges for 12 or 18 months. The versions on sale from 9 October 2026 work out at about £1,896 a year (12M) and about £1,789 a year (18M) for a typical dual-fuel home paying by Direct Debit, averaged across regions. Your own quote depends on your postcode and usage.

Is an Octopus fixed tariff a good deal in October 2026?

Is Octopus a good deal for existing customers?

What is a loyal 12-month fixed tariff from Octopus?

What exit fees does Octopus charge on a fix?

Fixed or Flexible Octopus: which should I choose?

What happens when my Octopus fix finishes?

How long does switching to Octopus take?

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