Cheapest October price cap fixed deal in the UK: how to find it
There isn’t one universal “cheapest” fixed deal for the October price cap period — it depends on your region, meter type and payment method. This guide shows how to compare fixed tariffs safely, what “good value” looks like versus the cap, and how to avoid costly terms.
- Compare whole-of-market fixed tariffs against the October cap (unit rates + standing charges)
- Check the terms that change the real cost: exit fees, discounts, and smart/prepay eligibility
- Use two worked examples to see how a “cheap” fix can cost more (or less) for your usage
Prices vary by region, meter type and payment method. All examples are estimates for guidance and may not reflect what you’ll be offered.
Fast answer: what’s the “cheapest” October price cap fixed deal?
In the UK, there is no single cheapest fixed tariff for the October price cap period that applies to everyone. The cheapest option for you depends on:
Where you live
Energy is priced by regional network area. A tariff that’s good value in the North West can be more expensive in London.
Your meter & fuel
Single-rate vs Economy 7, smart meter requirements, and whether you need gas + electricity together all change what you’re offered.
How you pay
Direct Debit usually has the widest choice. Prepayment and pay-on-receipt options can be priced differently and have fewer fixed deals.
Practical rule of thumb: If a fixed tariff’s unit rates and standing charges are below the October Ofgem cap for your region and payment method, and the exit fees/terms fit your plans, it’s a strong candidate. If only the headline “estimated annual cost” looks cheap, double-check what’s driving it (discounts, assumptions, limited eligibility).
Key takeaways (quick checks)
- Compare rates, not just totals: look at electricity (p/kWh), gas (p/kWh) and both standing charges (p/day).
- Match your meter: Economy 7 and smart-only tariffs can change the “cheapest” outcome.
- Check exit fees: a cheap fix can be costly to leave if prices fall or you move home.
- Know your usage: low users are more sensitive to standing charges; high users are more sensitive to unit rates.
Compare fixed tariffs vs the October price cap (in minutes)
To find the cheapest for your home, you’ll want quotes that reflect your postcode, meter and payment method. We’ll show you available fixed deals and help you compare them against the cap in a like-for-like way.
What you’ll need: postcode, current supplier/tariff (if you know it), and whether you have a smart meter or Economy 7. If you don’t know your usage, we can still estimate using typical consumption figures — you can refine later.
What counts as a “price cap fixed” deal?
People often mean one of two things:
- A fixed tariff priced below (or near) the October cap
- Your rates are fixed for the contract term. You compare your offered fixed rates against the cap rates for your region/payment method at the time you switch.
- A “cap-tracker” or variable tariff
- Not fixed: rates can move (often in line with the cap). These can be useful, but they’re different products and need different risk checks (and may not be available widely).
Two realistic scenarios (with numbers)
These examples show how “cheapest” changes with usage. Figures are illustrative, not a quote. We assume:
- Dual fuel, Direct Debit, single-rate electricity
- Electricity standing charge: 55p/day; gas standing charge: 32p/day
- Cap-like unit rates (example): electricity 24p/kWh, gas 6.2p/kWh
- Example fixed deal A: electricity 22.5p/kWh, gas 5.9p/kWh, standing charges same as above
- Example fixed deal B: electricity 23.2p/kWh, gas 6.0p/kWh, but standing charges higher: electricity 62p/day, gas 37p/day
Scenario 1: low usage flat
Electricity 1,500 kWh/year; gas 6,000 kWh/year.
| Option | Estimated annual cost |
|---|---|
| Cap-like rates (example) | ~£1,010 |
| Fixed deal A (lower unit rates) | ~£965 |
| Fixed deal B (higher standing charges) | ~£1,045 |
Why: for low users, higher standing charges can outweigh small unit-rate savings.
Scenario 2: higher usage family home
Electricity 3,600 kWh/year; gas 12,000 kWh/year.
| Option | Estimated annual cost |
|---|---|
| Cap-like rates (example) | ~£1,545 |
| Fixed deal A (lower unit rates) | ~£1,445 |
| Fixed deal B (higher standing charges) | ~£1,535 |
Why: for higher users, unit rates tend to matter more than standing charges.
Important: The Ofgem price cap limits what suppliers can charge on standard variable tariffs per unit/standing charge (by region and payment method). It is not a cap on your total bill, and fixed tariffs can be above or below it.
Get personalised fixed deals
Tell us a few details and we’ll match you with available tariffs. This helps you identify the cheapest fix for October for your postcode and setup.
Tip: If you’re on a smart prepayment meter, fixed deals may be limited. Still compare — sometimes a competitive variable tariff or a smart credit meter option is a better fit (subject to eligibility).
Comparison table: what to check before you choose a fixed deal
When you’re trying to find the cheapest fixed tariff for the October cap period, these are the fields that most often change the outcome. Use this as your decision framework.
| Check | Why it matters | What to look for |
|---|---|---|
| Electricity unit rate | Big driver for high electricity users. | p/kWh lower than the cap-equivalent in your region (if your goal is to beat the cap). |
| Gas unit rate | Often the biggest share for homes with gas heating. | p/kWh and any tiering/seasonality (if applicable). |
| Standing charges | Can dominate bills for low users and second homes. | Compare p/day for both fuels; don’t ignore “slightly higher” charges. |
| Exit fees | Determines your flexibility if prices fall or you move. | £0 exit fee (more flexible) vs ££ per fuel; note end-of-contract rules. |
| Contract length | Long fixes reduce uncertainty but can lock in above-market rates. | Common terms: 12/18/24 months. Ask: “Will I likely need to switch before then?” |
| Eligibility (meter/payment) | Some deals require Direct Debit, smart meter, or exclude prepay. | Check you match: credit vs prepay, Economy 7, smart meter conditions. |
Quick checklist: who a fixed deal suits
- You value stable payments and prefer to avoid rate changes.
- You plan to stay in your home for the contract term (or exit fees are low).
- The fixed rates are competitive vs the cap for your region and payment method.
- You can meet the tariff conditions (e.g., Direct Debit, smart meter if required).
Who it may not suit (or needs extra care)
- You expect to move soon and the tariff has high exit fees.
- You’re on prepayment and options are limited (compare carefully).
- You have very low usage and the fix has higher standing charges.
- You’re considering a long fix mainly for peace of mind, but rates are clearly above cap-equivalent today.
Costs, exclusions and common pitfalls (UK-specific)
The cheapest-looking fixed deal can become expensive once you factor in terms and eligibility. These are the most common “gotchas” we see when people compare fixed tariffs around the October cap period.
1) Exit fees (per fuel)
Many fixes charge exit fees for leaving early. Check whether it’s per fuel (gas + electric) and whether it applies if you switch within a “cooling off” window or near contract end.
2) Standing charge trade-offs
Some tariffs offset lower unit rates with higher standing charges. If your usage is low (or you’re out a lot), this can wipe out savings.
3) Meter type mismatches
Economy 7 (two-rate) tariffs need careful comparison using your day/night split. Smart-only deals can be excluded if your meter can’t be enrolled.
4) Payment method rules
The cap and tariffs vary by payment method (Direct Debit vs pay-on-receipt vs prepay). Make sure you compare within the same method.
5) “Estimated annual cost” assumptions
Comparisons often assume typical usage. If your usage differs, the ranking of “cheapest” can change. Always sanity-check with your own kWh if possible.
6) Bundles, add-ons and incentives
Gift cards and sign-up credit can be real value, but check eligibility and timing. Don’t let a one-off incentive distract from higher ongoing rates.
If you rent: you can usually switch supplier if you pay the bills, but check your tenancy and make sure any prepayment meter rules are followed. If you’re in debt to your current supplier, switching may be restricted until it’s managed.
FAQs: October price cap fixed deals (UK)
Is there a fixed tariff that exactly matches the price cap?
Usually no. The cap applies to default variable tariffs and sets maximum unit rates and standing charges (by region/payment method). Fixed deals are separate products and can be priced above or below cap-equivalent levels.
Does the October price cap mean my bill is capped?
No. The cap limits the price per unit and standing charge, not your total bill. If you use more energy, you pay more.
Can I switch if I’m on a prepayment meter?
Often yes, but your options may be fewer and pricing can differ. If you have debt on your meter, switching can be restricted. Compare based on your exact meter type (traditional vs smart prepay) and payment method.
Do I need a smart meter to get the cheapest fixed deal?
Not always. Some tariffs are smart-meter compatible or smart-required, but many standard fixed tariffs don’t require one. If a deal is smart-only, check whether your meter can be enrolled and whether you’re comfortable with that requirement.
What should I compare: unit rates, standing charges, or “estimated annual cost”?
Start with unit rates + standing charges, because that’s what you’re actually billed on. Use “estimated annual cost” as a helpful summary, but remember it depends on assumed usage. If you can, use your annual kWh from recent bills for a more accurate comparison.
Will I pay exit fees if I move house?
It depends on the tariff. Some suppliers waive exit fees when you move, others may not. Check the tariff’s terms and ask what happens if you move within the contract period.
How long does an energy switch take in the UK?
Switching is typically completed within a few working days for many customers, but timings can vary. Your supply doesn’t stop during a switch. Always keep paying your current supplier until the switch completes.
If the cap falls later, will I be stuck on a higher fixed rate?
Potentially, yes — that’s the trade-off. If you choose a fix with exit fees, it may cost money to leave early. If flexibility matters, consider shorter fixes or lower/zero exit-fee options (availability varies).
How we assess the “cheapest” October price cap fixed deal
Our approach (what we compare)
- Unit rates (electricity & gas) and standing charges for your region/payment method
- Tariff type (fixed vs variable; dual fuel vs single fuel; Economy 7 where relevant)
- Fees & terms: exit fees, contract length, eligibility criteria, discounts/incentives
- Estimated annual cost using either your kWh (preferred) or typical consumption when unavailable
Limitations (what can change)
- Tariffs can be withdrawn or repriced quickly by suppliers.
- Your final offer may depend on meter status (smart enrolment), credit checks, or supplier rules.
- “Cheapest” depends on your usage pattern; standing charge vs unit rate trade-offs are personal.
- The October cap is set by Ofgem and varies by region and payment method.
Editorial & review
- Written by:
- EnergyPlus Editorial Team
- Reviewed by:
- Energy Specialist
- Last updated:
- May 2026
Transparency note: This page is designed to help you compare tariffs confidently. We do not promise that a fixed deal will be cheaper than the cap for every home, and we recommend checking full tariff terms before you agree to switch.
Ready to check the cheapest fixed deal for your postcode?
Compare whole-of-market options and see which fixed tariffs stack up against the October cap for your region, meter and payment method.
Before you submit: If you have your latest bill handy, your annual kWh (electricity and gas) will make the results more accurate — but it’s not required to begin.
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