Unsure whether to choose a fixed or flexible Octopus Energy tariff? Here’s a clear, up‑to‑date comparison.
Especially relevant after the April 2026 price cap changes.
Octopus Flexible is a variable tariff that follows the Ofgem price cap. Prices can rise or fall when the cap changes, but customers benefit immediately when the cap falls.
Since the April 2026 price cap reduction, Flexible rates have fallen automatically for customers.
For a full breakdown of current prices and plans, see our Octopus Energy tariff comparison.
A fixed tariff locks in your unit rates and standing charges for a set period (usually 12–14 months), providing protection against future price rises.
Following the April 2026 price cap update, Octopus applied policy‑driven reductions to eligible existing fixed tariffs. However, new fixed tariffs taken out from March 2026 include exit fees (typically around £75 per fuel).
| Feature | Flexible | Fixed |
|---|---|---|
| Price changes | Moves with price cap | Locked for the term |
| Exit fees | None | New tariffs: ~£75 per fuel |
| Best for | Flexibility & falling prices | Budget certainty |
| Risk of overpaying | Possible if cap rises | Possible if prices fall |
For many homes, Octopus Flexible is the safer choice after the April price cap reduction, thanks to no exit fees and immediate benefit from lower prices. A fixed tariff may suit households that value certainty and want protection against future increases, but the new exit fees mean it’s important to be confident before committing.
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New to Octopus? See our Octopus Energy switching guide for an overview of tariffs, solar and referral credit.
Last updated: April 2026