How Much Does Octopus Energy Cost in the UK?
Octopus Energy bills the average UK household around £120 per month for gas and electricity. The exact amount depends on your usage, tariff, and property size. Energy prices in the UK are regulated by Ofgem's quarterly price cap, which sets the maximum unit rates and standing charges suppliers can charge on default tariffs.
| Tariff Type | Typical Monthly Cost | Contract Length | Green Energy |
|---|---|---|---|
| Flexible Octopus | £120 | Rolling monthly | 100% renewable electricity |
| Octopus Go | £110–£130 | 12 months | 100% renewable electricity |
| Octopus Tracker | Varies daily | Rolling monthly | 100% renewable electricity |
| Cosy Octopus | £100–£120 | 12 months | 100% renewable electricity |
Octopus Energy supplies 100% renewable electricity as standard across all tariffs. According to Ofgem data, the price cap for Q1 2026 sets the typical dual fuel bill at approximately £1,568 per year. Your actual bill may be higher or lower depending on your energy consumption and whether you have a smart meter installed.
For a full comparison of UK energy suppliers, see our guide to UK Utilities subscriptions.
Does Octopus Energy Auto-Renew?
Yes, Octopus Energy bills are continuous and renew automatically. You will receive a monthly bill or statement based on your energy usage, charged via direct debit on a fixed date each month. Octopus reviews your direct debit amount periodically to ensure it matches your actual consumption.
Most Octopus customers pay by monthly direct debit, which is the cheapest payment method. If your direct debit builds up a credit balance over summer months, this is used to offset higher winter bills. You can request a refund of excess credit at any time through your online account.
Smart meter customers receive accurate monthly bills based on actual usage, while those without smart meters may receive estimated bills that are adjusted when meter readings are submitted.
How to Cancel Octopus Energy
Switching away from Octopus Energy is straightforward and handled by your new supplier. Under Ofgem rules, the switching process takes no more than 5 working days once your new supplier has submitted the transfer request.
Step-by-step process
- Choose a new energy supplier and sign up with them
- Your new supplier handles the entire switch — you do not need to contact Octopus
- Octopus Energy sends a final bill based on your last meter reading
- Any credit on your account is refunded within 10 working days
- There are no exit fees on Octopus Energy's variable tariffs
If you are on a fixed-term tariff, check for any early exit fees before switching. Octopus Energy's Flexible Octopus tariff has no exit fees at all. According to Ofgem, 6.2 million UK households switched energy supplier in 2025.
If you are considering other energy suppliers, see our guides to British Gas and OVO Energy.
Is Octopus Energy Worth It in 2026?
Octopus Energy has consistently ranked as the UK's highest-rated energy supplier, winning Which? Recommended Provider status every year since 2020. The company serves over 8 million UK households and has expanded internationally.
| Pros | Cons |
|---|---|
| Highest-rated UK energy supplier for customer service | Prices still subject to Ofgem price cap like all suppliers |
| 100% renewable electricity on all tariffs | Smart tariffs require a compatible smart meter |
| Innovative tariffs (Tracker, Go, Cosy) | Variable tariff rates can change with each price cap update |
| No exit fees on flexible tariffs | Fixed deals may not always beat the price cap |
| User-friendly app and online account | Agile Octopus tariff can be complex to understand |
Octopus Energy's specialist tariffs like Octopus Go (cheap overnight electricity for EV charging) and Cosy Octopus (heat pump optimised rates) offer genuine savings for households with the right setup. For comparison, EDF Energy and E.ON Next also offer competitive fixed deals worth checking at renewal time.
Track Your Octopus Energy Subscription with Prunely
Prunely lets you add your Octopus Energy direct debit to see exactly when your next payment falls. Set custom reminders so you get an alert before you are charged. Track your energy spending alongside all your other subscriptions — broadband, insurance, streaming, and more — without connecting a bank account. Prunely is free for up to 5 subscriptions.
Frequently Asked Questions
How much does Octopus Energy cost per month in the UK?
The average Octopus Energy bill is around £120 per month for a typical UK household using both gas and electricity. Your actual cost depends on property size, insulation, and usage habits. All standard variable tariffs are subject to Ofgem's quarterly price cap, which sets maximum unit rates.
Is Octopus Energy the cheapest UK supplier?
Octopus Energy is competitive but not always the cheapest. All suppliers' standard variable tariffs are capped at the same Ofgem price cap level. However, Octopus often offers fixed deals and smart tariffs that can undercut the cap. Compare tariffs at renewal using MoneySupermarket or Uswitch.
Can I switch from Octopus Energy for free?
Yes, if you are on the Flexible Octopus variable tariff, there are no exit fees. Simply sign up with a new supplier and they handle the switch. Fixed-term tariffs may carry early exit fees — check your tariff details in your Octopus account before switching.
Does Octopus Energy use renewable energy?
Octopus Energy supplies 100% renewable electricity across all its tariffs, backed by Renewable Energy Guarantee of Origin (REGO) certificates. The company also invests in its own wind and solar generation through Octopus Energy Generation.
How do I track my Octopus Energy spending?
Add your Octopus Energy direct debit to Prunely to track your monthly payments alongside your other subscriptions. You can also monitor usage through the Octopus Energy app, which provides daily and half-hourly consumption data if you have a smart meter installed.