FAQ
Frequently asked questions
Calm answers to common Octopus Energy questions: switching, tariffs, smart meters and referral credits.
Reviewed May 2026
Referral code
How does the Octopus Energy referral code work?
When you sign up to Octopus through a referral link, both you and the person who referred you get £50 energy credit. The credit is added to your Octopus account and comes off your bills. It is part of Octopus's official refer-a-friend programme.
Is the £50 referral credit real?
Yes. Octopus says home referrals give £50 energy credit to the new customer and £50 to the referrer once the referral qualifies. It is account credit, not a voucher or a separate cash payment.
When do I get the £50 credit?
Octopus says the credit is normally added once your supply has switched and your first month's Direct Debit has been successfully taken. It often takes around four weeks, but it can take longer if the old supplier or the switch itself is delayed.
Can I use a referral code with a comparison site?
No. Octopus says the referral only applies when you sign up directly through the referral link. If you switch through Uswitch, GoCompare or another comparison site, Octopus has to honour that route instead and the referral credit will not apply.
What if I already started signing up without a referral link?
If you have not completed the process, the safest option is to start again using the referral link below. If you have already finished, contact Octopus support quickly. They may be able to help, but you should not assume the credit can always be added afterwards.
Is there a limit to how many referrals one person can make?
Octopus does not publish a simple fixed limit for normal personal referrals. It does say the scheme is meant for genuine recommendations to people you know, and that public or commercial promotion may need a different Octopus scheme.
Switching
How long does it take to switch to Octopus?
The online signup only takes a few minutes. The supply switch is now designed to be much quicker than the old multi-week process, often within five working days if you choose to switch during the cooling-off period. Dates can still vary because of meter details, address records, old-supplier objections or whether you choose to wait until after the 14-day cooling-off period.
Will my energy get cut off when I switch?
No. Your gas comes through the same pipes and your electricity through the same wires regardless of supplier. Switching is a billing and account change, not a physical change to your supply.
Do I need to contact my old supplier?
Usually no. The new supplier normally handles the transfer and tells your old supplier. You should still keep opening readings, final bills and any credit-refund messages until both accounts line up.
Can I switch if I'm renting?
If the energy account is in your name, usually yes. You normally do not need your landlord's permission to change supplier. If energy is included in your rent and the account is in the landlord's name, you normally cannot switch it yourself.
Are there exit fees if I want to leave Octopus?
It depends on the tariff you choose. Flexible Octopus has no exit fee. Some fixed and smart tariffs can have exit fees or minimum terms, so check the tariff page and the terms shown during signup before committing.
I'm on a fixed deal with my current supplier. Can I still switch?
You can, but check your current supplier's exit fees first. Some fixed deals charge per fuel if you leave early, while the final 49 days of a fixed-term tariff are usually the safer window to switch without exit fees. Compare the fee with any saving before moving.
Tariffs
Which Octopus tariff is cheapest?
It depends on your home, region, meter and when you use energy. Flexible is the simplest starting point. Agile, Go, Intelligent Go, Tracker and Cosy can be better fits for some households, but each has eligibility rules and risks. Use the tariff guides, quiz and postcode comparison tool before choosing.
Do I need a smart meter for the special tariffs?
Yes for most smart tariffs. Agile, Go, Intelligent Go, Tracker and Cosy all rely on smart-meter data. Flexible Octopus can work without a smart meter, though you may still need to submit readings if your meter does not send them automatically.
Can I switch between Octopus tariffs?
Often yes, through your account or by contacting Octopus. Check the terms first because some tariffs have eligibility rules, fixed terms, exit fees or rejoin restrictions. A tariff change is not always instant, especially when smart-meter setup or device checks are involved.
What happens if I'm on Agile and prices spike?
Agile has a 100p/kWh Price Cap Protect limit, which protects against extreme half-hourly prices. The real day-to-day risk is more often expensive evening peaks. If you cannot move much use away from peak periods, a flatter tariff may feel safer.
Could the war in the Middle East put my Octopus bill up straight away?
Usually not straight away if you are on Flexible Octopus, because default-tariff prices are linked to the quarterly Ofgem price cap. Tracker and Agile are different because they follow wholesale markets more closely, so they can react sooner.
Should I leave Tracker or Agile when wholesale prices jump?
Not automatically. A short spike does not prove those tariffs have stopped making sense. They suit people who can tolerate movement and check prices. If you need certainty, a fixed or standard tariff may suit you better.
Do fuel shortage headlines mean my home energy supply is at risk?
Usually the practical issue is price risk rather than your supply being cut off. Petrol-station headlines and home energy bills can both be affected by wider energy markets, but they are not the same thing.
Is Octopus really cheaper than other suppliers?
It can be, especially when your usage fits one of the smart tariffs, but it is not automatically cheapest for every household. Check your postcode, payment method, standing charge, unit rates and any device eligibility before switching.
Smart meters & tech
Is a smart meter free?
Energy suppliers normally install smart meters without an upfront charge. Appointment length depends on the property, meter type and whether gas, electricity or both are being changed.
What if my smart meter does not work properly after switching?
This can happen, especially with older meters or after a supplier change. Keep manual readings while the setup settles, check whether bills are estimated and contact Octopus if readings or half-hourly data keep missing.
Do I need the Octopus app?
You do not have to use the app, but it is useful for balances, usage, meter readings, tariff changes and smart-tariff setup. The website is still there if you prefer managing your account in a browser.
About this site
Is this an official Octopus Energy website?
No. This is an independent site run by an Octopus customer. It is not affiliated with, endorsed by or connected to Octopus Energy Ltd.
How do you make money from this site?
Through Matt's Octopus Energy referral link. If you sign up using it and the referral qualifies, you get £50 account credit and Matt gets £50 account credit too. There are no ads, sponsorships or data-selling arrangements.
Where do the tariff rates come from?
The postcode comparison tool uses Octopus tariff data so it can show regional prices. Broad guide pages avoid pretending that one national rate applies everywhere, because standing charges and unit rates vary by region and tariff.
Question not here?
Check the individual tariff guides for tariff-specific questions or read the switching guide for a step-by-step walkthrough.
About the £50 referral credit