Looking for predictability in your energy bills? The Octopus 12M Fixed tariff for 2026 locks in your electricity and gas unit rates and standing charges for a full year, offering peace of mind against market fluctuations.
Last updated 1 hour ago
In the dynamic world of energy, price predictability can be a huge comfort. For 2026, Octopus Energy continues to offer its popular Octopus 12M Fixed tariff, designed to give households stability and clarity over their energy costs. If you're tired of watching wholesale energy prices dictate your monthly outgoings, this tariff could be the ideal solution for your home.
The Octopus 12M Fixed tariff is straightforward: it's a fixed-term energy plan that guarantees your electricity and gas unit rates (pence per kWh) and standing charges (pence per day) will remain constant for a full 12 months from the start date of your tariff. This means that, regardless of what happens with wholesale energy prices on the broader market, your core energy costs per unit and daily charge won't change throughout the year.
It’s important to understand that while your unit rates and standing charges are fixed, your total bill will still vary based on your actual energy consumption. The more electricity and gas you use, the higher your bill will be, even on a fixed tariff. The 'fixed' aspect refers to the cost of each unit of energy, not your total spend.
This tariff is a fantastic option for a variety of households:
This is the primary advantage. You'll know exactly how much you're paying per unit of electricity and gas, making it easier to forecast your monthly and annual energy expenditure. This stability helps you manage your household budget more effectively, without unexpected spikes.
Energy markets can be unpredictable. Geopolitical events, supply chain issues, and demand fluctuations can all lead to rapid price changes. With Octopus 12M Fixed, you are insulated from these external forces for the duration of your contract.
By knowing your rates, you can better estimate your future bills, helping you to set aside the right amount each month. This is particularly useful for those who prefer to pay by Direct Debit and want to avoid large credit or debit balances accumulating.
While fixed tariffs offer great benefits, it's also important to be aware of potential drawbacks:
As an independent energy information site, we do not display live unit rates here. Energy prices vary significantly based on your region (postcode), meter type, and current market conditions. To get the most accurate and up-to-date Octopus 12M Fixed rates specifically for your home in 2026, we strongly recommend visiting the Octopus Energy website directly and inputting your postcode.
When considering the Octopus 12M Fixed tariff, it's wise to compare it with other available options:
Always use your actual annual consumption figures when comparing tariffs to get the most accurate estimate of your total annual cost.
If the peace of mind that comes with fixed energy prices for 12 months appeals to you, the Octopus 12M Fixed tariff could be an excellent choice for your home in 2026. Octopus Energy is renowned for its outstanding customer service and commitment to green energy, making them a top-rated choice among UK households.
Switching to Octopus Energy is simple and hassle-free. Plus, by using our exclusive referral link, you could receive a £50 credit on your new Octopus Energy account!
Don't miss out on potential savings and award-winning service. Get a quote and switch today:
Use our referral link and get £50 credit added to your Octopus account when you switch.
Get £50 & Switch Now →| Product Code | OE-FIX-12M-26-11-03 |
| Type | Fixed |
| Green | ❌ No |
| Tracker | ❌ No |
| Prepay | ❌ No |
| Available from | Nov 2026 |
| Status | ✅ Active |
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