Discover Octopus 12M Fixed 2026, a tariff designed to give you peace of mind by locking in your energy unit rates and standing charges for a full year. Perfect for budgeting and avoiding market volatility.
Last updated 4 weeks ago
As we navigate the energy landscape of 2026, many households are seeking stability amidst fluctuating prices. Octopus Energy’s Octopus 12M Fixed tariff offers just that – a clear path to predictable energy bills for a whole year. If you’re looking to budget effectively and protect yourself from potential market increases, this tariff might be your ideal solution.
The Octopus 12M Fixed tariff is straightforward: it’s a fixed-term energy plan that guarantees your electricity and gas unit rates, along with your standing charges, will remain the same for 12 months from the start date of your contract. This means that regardless of what happens with wholesale energy prices in the wider market, your per-unit cost for energy and your daily standing charge will not change.
It's important to note that while your rates are fixed, your total bill will still vary based on your actual energy consumption. The more energy you use, the higher your bill will be, even with fixed rates. However, the cost per unit remains constant, making it much easier to estimate your expenses.
This tariff is an excellent choice for a variety of households:
If you prefer to know exactly what you’re paying for your energy usage, the fixed rates allow for much more accurate budgeting. No more surprises when market prices shift.
Worried about potential energy price rises over the next year? Locking in your rates means you can relax, knowing your per-unit costs are secure for 12 months.
If your household's energy consumption is fairly consistent, a fixed tariff provides predictable costs without the volatility of a variable rate plan.
New to managing energy bills? A fixed tariff simplifies the process by removing one major variable, allowing you to focus on understanding your usage.
The most significant advantage is knowing your unit rates and standing charges won't change for 12 months. This protection against rising energy costs can be invaluable.
With predictable rates, forecasting your monthly or annual energy expenditure becomes much simpler, helping you manage your household finances more effectively.
In a dynamic energy market, wholesale price swings can impact variable tariffs. Octopus 12M Fixed shields you from these sudden increases for the duration of your contract.
As an Octopus Energy customer, you'll benefit from their highly-rated customer service, consistently praised for its helpfulness and efficiency.
While fixed tariffs offer great advantages, it’s important to be aware of potential downsides:
The Octopus 12M Fixed tariff has an early exit fee of £50 per fuel. This means if you decide to switch away from this tariff before your 12-month contract is up, you would incur a £50 fee for electricity and another £50 for gas (if you have both). This is standard for most fixed tariffs and is designed to cover the cost of the energy Octopus has purchased on your behalf.
If wholesale energy prices drop significantly during your 12-month contract, you won't benefit from those lower market rates, as your unit rates are locked in. You would continue to pay your fixed rate.
Please note: Unit rates and standing charges for the Octopus 12M Fixed tariff vary depending on your specific location (postcode) and your meter type. As such, we cannot provide universal rates here. To get the most accurate, personalised quote for your home, the best approach is to visit the Octopus Energy website directly and input your details. They will provide you with a bespoke quote tailored to your exact circumstances.
It's always recommended to check the latest rates directly on the Octopus Energy website to ensure you have the most up-to-date information for your specific region in 2026.
Before committing to any tariff, it’s wise to compare your options. Here’s what to consider:
The main alternative is a flexible (or variable) tariff, where rates can go up or down with the market. If you believe energy prices will fall, a flexible tariff might save you money, but it also carries the risk of price increases. If you prioritise stability, Octopus 12M Fixed is often preferred.
When comparing, don't just look at unit rates. Consider the estimated total annual cost for your typical usage, including standing charges and any exit fees.
Factor in the £50 per fuel early exit fee if there's a chance your circumstances might change within the 12 months, or if you anticipate wanting to switch sooner.
Octopus Energy may offer other fixed tariffs with different durations or features. Always check all available options to find the best fit for you.
If the idea of predictable energy bills and protection from market fluctuations appeals to you, the Octopus 12M Fixed tariff could be an excellent choice for your home in 2026. Taking control of your energy costs has never been more important.
Ready to explore your personalised quote and potentially join millions of happy Octopus Energy customers? Use our referral link below to get started today, and you could even receive a bonus applied to your account!
| Product Code | OE-FIX-12M-26-10-07 |
| Type | Fixed |
| Green | ❌ No |
| Tracker | ❌ No |
| Prepay | ❌ No |
| Available from | Oct 2026 |
| Status | Discontinued |
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