Is Octopus still the best EV tariff now rivals have caught up?

For a long time, the easy EV tariff answer was to look at Octopus Go or Intelligent Octopus Go first. That is still a reasonable instinct, but the 2026 market is much tighter than it used to be. E.ON, EDF, British Gas and OVO now all have offers that can look strong from the headline rate alone.

That does not mean every rival works in the same way. Some tariffs give the whole home a fixed overnight cheap period. Some add smart scheduling. Some are closer to an EV charging plan or bill-credit product layered on top of a normal home tariff. If you compare them as if they are all the same product, the cheapest-looking one can be misleading.

Supplier pages were checked on 7 May 2026. EV tariff rates and standing charges can vary by postcode, region, meter setup and payment method, so this guide avoids fixing those rates in the article. Use the supplier links as the final price check before switching.

What Octopus still does well

Octopus still has two simple strengths for EV households: Go is easy to understand, while Intelligent Octopus Go can be powerful if your car or charger is compatible and you are happy with smart scheduling.

• Octopus Go gives the whole home a cheaper period from 00:30 to 05:30. It suits drivers who want a predictable overnight slot rather than supplier-managed charging. Check the current postcode-specific rate on the Octopus Go page.
• Intelligent Octopus Go showed a low smart-charging rate and a six-hour whole-home overnight cheap window when checked on 7 May 2026. It can also make extra cheap periods when Octopus schedules smart charging. Check the latest rate and compatibility on the Intelligent Octopus Go page.

The whole-home part matters. If you charge a home battery overnight, heat water, run appliances or simply have high evening and night use, a tariff that discounts more than the car can be more useful than a very low EV-only headline.

Where rivals have become more serious

The strongest rivals are not just copying Octopus. They are taking different approaches, and those differences are worth reading carefully.

The real comparison is the billing model

A simple rate table is tempting, but it hides the main decision. Ask these questions before you move supplier for a small headline difference:

1. Does the cheap rate apply to the whole home? This matters for batteries, heat pumps, hot water and overnight appliances.
2. Is the cheap period guaranteed or smart-scheduled? A fixed window is easier to plan around. Smart scheduling can be stronger, but only if your setup works reliably.
3. What happens when you override the schedule? Boost charging, urgent charging or non-smart charging can be billed differently.
4. What hardware is required? Some offers depend on a compatible EV, charger, smart meter, app connection or half-hourly data consent.
5. How does the rest of your household use electricity? The best tariff for a low-mileage EV driver may not be the best tariff for a home with solar, a battery or electric heating.

When Octopus is still the cleaner choice

Octopus is still hard to beat if you want a well-understood EV tariff with a clear onward path to related tools, export options and smart-tariff guidance. It is especially compelling when Intelligent Octopus Go compatibility works for your car or charger and your household can make use of the whole-home cheap window.

Go also remains useful for people who prefer the simple version. If you mainly charge overnight, do not want smart scheduling and like predictable routines, a slightly higher off-peak rate can still be worth it if the overall household fit is cleaner.

When a rival may be worth a closer look

• E.ON Next Drive Smart is worth checking if you want a close whole-home smart rival and your car, charger and meter fit its rules.
• EDF GoElectric may suit drivers who value the longer 23:00 to 06:00 fixed window and do not need Octopus's smart-scheduling model.
• British Gas EV Power may appeal if you want a simple midnight to 5am whole-home window or already use British Gas and eligible Hive products.
• OVO Charge Anytime may suit drivers who want a plan-style EV charging product and are happy to keep the household tariff decision separate.

None of those makes Octopus automatically wrong. They do mean it is worth checking the actual shape of your home use before assuming one brand is always cheapest.

Bottom line

The question is no longer whether Octopus has any competition. It does. The better question is whether the rival tariff is better for your whole home, or only better in a narrow EV charging example.

For many EV households, Octopus Go and Intelligent Octopus Go still deserve a first look because the rules are relatively clear and the whole-home benefit is easy to understand. If a rival offers a lower or similar headline rate, check the billing model, compatibility, peak-rate rules, standing charge and export or battery fit before moving.

If you decide Octopus still fits after those checks, the referral-code page explains how Matt's Octopus link works and what to expect from the credit.