Explore the chart. Hover, focus or select any point to see its exact values.
Points are interactive: hover, focus or select one for exact values. Shaded band is the cheapest-to-dearest spread within each month; the line is the duration-weighted mean. One period is drawn from part of the calendar rather than all of it: Sept 2026 (22 of 30 days). A month is partly counted where a version went on or came off sale inside it, and the current month is always still in progress. They are drawn hollow.
Each month shows the version of Flexible Octopus you could actually have signed up to then, so the line follows the tariff through its successive versions rather than any one product code. Older versions carry on publishing rates for months after they stop selling; those are not averaged in, because nobody could buy them. Drawn from the stored daily rollups across every payment method the tariff publishes; where a tariff publishes more than one, the rates above show the direct-debit one and this line sits between them.
Year archive
Choose a year above to see its prices.
Against the Ofgem price cap
Over 12 complete months, this tariff came in under the Ofgem cap in 12 of them.
Monthly cost on this tariff against the Ofgem price cap, most recent month last
Month
This tariff
Cap
Difference
September 2025
£67.65
£67.94
−£0.29
October 2025
£71.67
£71.97
−£0.30
November 2025
£69.36
£69.64
−£0.29
December 2025
£71.67
£71.97
−£0.30
January 2026
£74.76
£75.18
−£0.42
February 2026
£67.53
£67.90
−£0.38
March 2026
£74.76
£75.18
−£0.42
April 2026
£66.52
£68.32
−£1.81
May 2026
£68.74
£70.60
−£1.87
June 2026
£66.52
£68.32
−£1.81
July 2026
£72.67
£73.69
−£1.02
August 2026
£72.67
£73.69
−£1.02
Both columns cost the same 2,500 kWh a year on the typical household consumption pattern, on a direct-debit basis — the basis the cap itself is set on. A negative difference means this tariff was cheaper. The cap is a cap on what you can be charged, not a price anyone is billed, so this compares this tariff against the maximum a capped tariff could have charged the same household.
Before you switch
Is Flexible Octopus a fit?
A quick suitability check before you compare the live price with your own home and usage.
Reviewed 24 August 2026
01
Essentials
You need
A compatible electricity meter and a currently available product version for your region.
02
Best fit
Works best if
You value a simpler rate structure over active half-hourly scheduling.
03
Check carefully
Watch out for
Standing charges, eligibility, product versions and future rates can change the outcome.
04
Pairing
Compatible export choices
Check the current Octopus smart-tariff terms before pairing any export product.
Make the final check
How to verify or switch
1Check the exact tariff name, product version, regional quote, eligibility and current terms with Octopus Energy.
2Use OctoTariffs history and calculators as evidence, not as a supplier quote or guarantee of future cost.
EvidenceEligibility and tariff sourcesShow sourcesHide sources
Simple, straightforward electricity pricing: one rate all day, no contract, no complexity. Unlike time-of-use tariffs, Flexible Octopus charges the same rate whether you use electricity at 3am or 3pm, so there is no peak or off-peak to track and bills stay predictable. As a standard variable tariff, Flexible Octopus is subject to Ofgem's price cap, which means your rates can't exceed the maximum set by the regulator. Rates are reviewed quarterly, you get advance notice of changes, and there are no fixed terms or exit fees.