Tariff guide

Flexible Octopus is Octopus's standard variable tariff. It is the simple option you can use if you do not want to choose a fixed deal, smart tariff or time-of-use tariff straight away.

That does not make it a bad tariff. It can be a sensible starting point for a normal household, especially while you are still checking whether Agile, Tracker, Go, Intelligent Go or Cosy actually fit your meter, devices and routine.

How Flexible works

You pay a single electricity unit rate, a single gas unit rate if you have gas and daily standing charges. There is no cheap overnight window, no peak period and no wholesale-price exposure.

Flexible is variable, so the price can change. The 1 July to 30 September 2026 cap period is now in force, and Octopus says Flexible and variable smart-tariff prices rise with that cap while fixed tariffs stay locked until their contract ends. Use your Octopus account notice, the current postcode quote and the next Ofgem update date before deciding whether to fix, wait or move to a smart tariff.

The important reference point is still the Ofgem price cap, which is reviewed every three months and limits the unit rates and standing charges suppliers can charge on default tariffs. It is not a cap on your total bill, because your bill still depends on how much energy you use, where you live, how you pay and the meter setup at the property.

You do not need a smart meter to be on Flexible. A smart meter can still be useful for accurate readings and app data, but it is not an eligibility requirement in the way it is for half-hourly smart tariffs.

What to check on price

Octopus says Flexible has not charged the full Ofgem price cap in the way large standard variable tariffs often do, and its July guidance points out that fixed options may sit below the July cap while giving a different certainty trade-off. Treat that as a reason to check both choices for your own account, not as a promise that either Flexible or a fix is always cheapest for your home.

The exact rates depend on where you live, how you pay and the meter setup at the property. Monthly Direct Debit, prepayment and paying on receipt of a bill can land on different cap levels, so do not compare Flexible from a national headline figure alone. For current figures, use Octopus's tariff price checker, Ofgem's price-cap explanation or the Switch to Octopus postcode comparison tool.

If you are coming from a smart tariff, check the smart-tariff terms before treating Flexible as a short stopover. Octopus says customers who leave a smart import tariff may have to wait before switching back, so a temporary move can still affect your next Agile, Go, Intelligent Go or Cosy decision.

Who Flexible can suit

• Households that want a straightforward default. You get one main unit rate instead of managing off-peak windows, wholesale prices or smart-charging rules.
• Homes without a working smart meter. Flexible avoids the half-hourly reading dependency that can block tariffs such as Agile, Cosy or Intelligent Go.
• People checking their next move. It can be a safe holding tariff while you compare a fixed deal, a smart tariff, a heat-pump tariff or an EV tariff properly.
• Low-flexibility households. If most of your electricity use happens at breakfast, teatime and evening, a flat variable tariff may be easier to judge than a tariff with cheap and expensive periods.

When another tariff may beat it

Flexible is rarely the strongest choice for households with genuinely flexible demand. If you have an EV, home battery, heat pump or a routine that can shift electricity away from the evening peak, compare it with Octopus's smart tariffs before settling.

A fixed tariff may also be worth checking if you want price certainty beyond the next cap period. The trade-off is that a fix can have different exit terms and may not move with future price-cap cuts in the same way as a variable tariff.

Bottom line

Flexible Octopus is the plain, low-admin option. It is useful if you want Octopus without committing to a smart tariff on day one, or if your home simply does not fit a time-of-use pattern. Before switching, compare your postcode and payment method, then check whether a fixed or smart tariff gives you a better match.