Octopus 12M Fixed

Octopus 12M Fixed Tariff 2026: Secure Your Energy Prices

Secure your energy prices for a full year with Octopus 12M Fixed in 2026. This popular tariff offers peace of mind against market fluctuations, making budgeting simpler and more predictable for UK households.

⚡ Current Rates (London region, inc VAT)

Elec Unit
24.60p
per kWh
Elec Standing
44.29p
per day
Gas Unit
6.96p
per kWh
Gas Standing
29.47p
per day

Last updated 5 hours ago

Octopus 12M Fixed lifestyle

In the ever-evolving UK energy market, finding stability and predictability for your household bills is more important than ever. For 2026, Octopus Energy continues to offer a range of tariffs designed to meet diverse needs, and one of the most popular choices for those seeking certainty is the Octopus 12M Fixed tariff.

This comprehensive guide will walk you through everything you need to know about Octopus 12M Fixed, helping you decide if it's the right choice to keep your energy bills under control throughout 2026.

What is Octopus 12M Fixed?

The Octopus 12M Fixed tariff, as its name suggests, is a fixed-term energy plan that locks in your electricity and gas unit rates (p/kWh) and daily standing charges (p/day) for a full 12 months. This means that regardless of any changes to the Ofgem energy price cap or fluctuations in wholesale energy costs, your rates will remain constant for the duration of your contract.

It's Octopus Energy's commitment to providing stability, giving you peace of mind knowing exactly what you'll pay per unit of energy for a whole year. This tariff is especially appealing during times of market volatility or when you simply prefer predictable budgeting.

Current Electricity Rates for Octopus 12M Fixed (as of early 2026)

While gas rates would also be fixed with this tariff, we can provide the current electricity rates for the Octopus 12M Fixed plan:

  • Electricity Unit Rate: 24.597825p/kWh (inc VAT)
  • Electricity Standing Charge: 44.28564p/day (inc VAT)

Please note that these rates are inclusive of VAT and are subject to change for future offers. Always check the specific quote provided by Octopus Energy for the most up-to-date and personalised rates for your region.

Who Should Consider Octopus 12M Fixed?

Octopus 12M Fixed is an excellent choice for a variety of households:

  • Budget-Conscious Individuals: If you value predictable outgoings and want to avoid unexpected bill increases, the fixed rates allow for easier budgeting and financial planning.
  • Those Seeking Stability: If market fluctuations make you nervous, locking in your rates offers a significant degree of security. You'll be protected if the energy price cap rises.
  • New Homeowners or Renters: When settling into a new property, having one less variable to worry about can be a huge relief.
  • Customers Who Prefer Long-Term Planning: If you like to set and forget your energy plan for a year, this tariff is ideal.

Benefits of Octopus 12M Fixed in 2026

Opting for a fixed tariff with Octopus Energy comes with several compelling advantages:

  • Price Certainty: Your unit rates and standing charges are fixed for 12 months, providing absolute clarity on your energy costs per unit.
  • Protection Against Price Rises: If the energy price cap or wholesale prices increase during your contract, you won't be affected. Your rates remain the same.
  • Easier Budgeting: With consistent rates, managing your household budget becomes much simpler, helping you avoid financial surprises.
  • Peace of Mind: Knowing your energy costs are stable for a year allows you to focus on other aspects of your life without constant worry about bill fluctuations.
  • Award-Winning Service: You'll still benefit from Octopus Energy's highly-rated customer service, innovative technology, and commitment to green energy.

Important Considerations

While Octopus 12M Fixed offers many benefits, it's essential to be aware of a few points:

  • Early Exit Fee: This tariff comes with an early exit fee of £50 per fuel. If you decide to switch away from Octopus Energy or to another Octopus tariff before your 12-month contract ends, this fee will apply.
  • Potential for Market Drops: If wholesale energy prices drop significantly during your fixed term, you might find that new variable tariffs become cheaper. However, the purpose of a fixed tariff is to protect against rises, not to guarantee the lowest price at all times.
  • Less Flexibility: Unlike a variable tariff, your rates are locked in. If your energy usage habits change dramatically, you might not be able to switch to a more tailored tariff without incurring the exit fee.

How Does Octopus 12M Fixed Compare?

When considering Octopus 12M Fixed, it's always wise to compare it with other options, both from Octopus Energy and other providers. The main comparison points are usually:

  • Variable Tariffs (e.g., Flexible Octopus): These tariffs track the energy price cap, meaning your rates can go up or down. They offer flexibility with no exit fees but lack price certainty.
  • Other Fixed Tariffs: Other providers might offer fixed tariffs with different rates or contract lengths. Always compare the total estimated annual cost based on your actual usage.

Remember to consider your own energy usage patterns. A higher unit rate might be offset by a lower standing charge if you use less energy, and vice-versa. Always get a personalised quote based on your postcode and consumption history for the most accurate comparison.

Is Octopus 12M Fixed Right for You in 2026?

If you prioritise stability, predictable budgeting, and protection against potential energy price rises in 2026, then the Octopus 12M Fixed tariff is a very strong contender. It's designed for those who value peace of mind over chasing the absolute lowest price at any given moment.

Weigh the benefits of price certainty against the early exit fee and your willingness to commit for 12 months. For many UK households, especially in the current climate, the security offered by a fixed tariff is invaluable.

Switch to Octopus Energy Today!

Ready to join the millions of happy customers enjoying fairer prices, outstanding customer service, and greener energy with Octopus Energy? Switching is quick, easy, and hassle-free. Octopus handles everything, ensuring a smooth transition with no interruption to your supply.

Plus, by using our exclusive referral link, you could get a credit added to your account when you switch to Octopus Energy!

Ready to fix your energy prices for 2026? Get a quote and switch to Octopus Energy today!
Switch to Octopus Energy and get a referral bonus!

📈 Historic Price Tracker

Data is building up — only 2 syncs so far. Check back in a few days for a fuller picture.

Ready to switch to Octopus 12M Fixed?

Use our referral link and get £50 credit added to your Octopus account when you switch.

Get £50 & Switch Now →

📋 Quick Facts

Product Code OE-FIX-12M-26-06-24
Type Fixed
Green ❌ No
Tracker ❌ No
Prepay ❌ No
Available from Jun 2026
Status ✅ Active
💰

Get £50 Credit

Switch using our referral link and earn £50 off your first bill.

Switch Now →

Other Tariffs

Agile Octopus
33.37p/kWh
Cosy Octopus
26.63p/kWh
Flexible Octopus Smart Pay as You Go
View all tariffs → All Tariffs on Octopus ↗

What Our Referrals Say

Real people saving real money with Octopus Energy

★★★★★

"Switching to Octopus Energy was the best decision. The process was seamless and we saved over £200 in the first year. Plus the £50 credit was a lovely bonus!"

Sarah M. , Manchester 5 days ago
★★★★★

"I was sceptical about switching energy providers, but Octopus made it incredibly easy. Their app is brilliant and the smart tariffs have saved us a fortune."

James T. , Bristol 8 days ago
★★★★★

"As someone with an EV, Octopus Energy's Intelligent Go tariff is unbeatable. Cheap overnight charging and the referral bonus was the cherry on top."

Emma L. , Leeds 12 days ago
Sign Up Now