Cheapest fixed energy tariff after the October price cap (UK)
Find out whether a fixed deal is likely to beat the new October price cap for your home, what “cheapest” really means in practice, and how to compare safely (including exit fees, meter type and payment method).
- Clear guidance on when a fix may be cheaper than the cap (and when it isn’t)
- Two realistic bill scenarios with numbers and assumptions
- Compare whole-of-market options with a trust-led quote form
Estimates only. Your prices depend on region, meter type, payment method, usage and supplier terms. Always check unit rates, standing charges and exit fees before switching.
Fast answer: what’s the cheapest fixed tariff after the October cap?
There isn’t one single “cheapest fixed tariff” for everyone after the October price cap changes. Fixed deals are priced by region, meter type (single-rate or Economy 7), payment method (Direct Debit vs prepayment), and your supplier’s available products at the time you apply.
Most useful way to judge “cheapest”: compare the fix’s unit rates + standing charges against the October cap rates for your region and meter type, then add in any exit fees and check the fixed term length.
Key takeaways (UK)
- A fixed deal can beat the cap if its unit rates and standing charge are lower in your region, or if it protects you from future cap rises.
- The cap isn’t a cap on your bill—it’s a cap on the maximum unit rates and standing charges suppliers can charge on standard variable tariffs (SVTs).
- Exit fees matter if you may move home, change meter type, or want to re-fix if prices fall.
- Cheapest ≠ best for everyone: the right fix depends on your risk tolerance, how long you’ll stay, and your usage pattern.
Quick decision rule
If you want a quick screen before you compare:
- Prefer a fix when it’s meaningfully below your SVT cap rates or you value price certainty.
- Be cautious when the fix is only a little cheaper but includes high exit fees or a long term.
- Consider staying on SVT if you expect to switch again soon, or you’re not sure you’ll remain at the address.
Compare fixed tariffs vs the October cap for your home
To find the cheapest fixed energy tariff for you, we compare whole-of-market options available for your postcode and meter details, then show the cost drivers in plain English (unit rates, standing charges, term length and exit fees).
Good to know: If you’re on a prepayment meter or Economy 7, fewer fixes may be available. We’ll still show you the best available options for your setup.
How to compare fixed deals safely (what to check)
- 1) Your region (postcode) and payment method
- October cap rates differ by region and by payment method. Direct Debit SVT rates usually differ from prepayment SVT rates.
- 2) Unit rates and standing charges (gas + electricity)
- A deal with a low unit rate but high standing charge may not be cheapest for low users. Look at both fuels if you’re dual fuel.
- 3) Tariff type and term
- Fixed tariffs usually lock in prices for 12–24 months. Consider whether you’re likely to move or switch again before the term ends.
- 4) Exit fees and eligibility
- Exit fees are common on fixes and can reduce or wipe out savings. Check eligibility (e.g., smart meter requirements, online-only billing, Direct Debit required).
Two realistic scenarios (with example numbers)
These examples are illustrative to show how fixed deals can work against cap-priced SVTs. Prices vary by region and supplier. We state assumptions so you can adjust to your situation.
Scenario A: Typical dual-fuel home on Direct Debit
- Assumed annual use: 2,700 kWh electricity + 11,500 kWh gas
- Assumed SVT (cap-priced) rates after October: Elec 24p/kWh + 60p/day SC; Gas 6.2p/kWh + 31p/day SC
- Example fixed deal: Elec 22.5p/kWh + 55p/day SC; Gas 5.9p/kWh + 29p/day SC; 12 months; £100 exit fee per fuel
Estimated annual cost on SVT: ~£1,587
Estimated annual cost on fix: ~£1,485
What this means: The fix looks ~£102/year cheaper if you stay the full term. If you leave early and pay exit fees, the saving could shrink or disappear.
Scenario B: Low-use electricity-only flat
- Assumed annual use: 1,600 kWh electricity only
- Assumed SVT (cap-priced) rates after October: 24p/kWh + 60p/day SC
- Example fixed deal: 23p/kWh + 68p/day SC; 12 months; £50 exit fee
Estimated annual cost on SVT: ~£734
Estimated annual cost on fix: ~£808
What this means: Even with a slightly lower unit rate, a higher standing charge can make a fix more expensive for low users. Here, SVT would likely be cheaper unless you value certainty or expect the cap to rise.
How to use these scenarios: If your usage is lower than typical, standing charges matter more. If your usage is higher, unit rates matter more. A “cheap” fix can be poor value if the standing charge is high or exit fees are steep.
Get your personalised fixed tariff comparison
Tell us a few details and we’ll match tariffs to your postcode and meter type. We use your contact details to respond to your request and help you compare options.
Tip: If you have a recent bill, your annual kWh usage (electricity and gas) helps you judge value more accurately than monthly Direct Debit alone.
Fixed tariff vs October cap SVT: what to compare
Use this table to compare any fixed tariff you’re offered against the cap-priced Standard Variable Tariff (SVT). The goal is to avoid being misled by headline “annual cost” figures that don’t match your usage or include fees.
| What you’re comparing | Why it matters | What “good” often looks like | Watch out for |
|---|---|---|---|
| Electricity unit rate (p/kWh) | Drives cost most for medium/high users. | Lower than your region’s SVT cap rate. | Two-rate tariffs if you’re not using off-peak much. |
| Electricity standing charge (p/day) | Big impact for low users (you pay it every day). | Similar to or lower than SVT. | A “cheap” unit rate paired with a high standing charge. |
| Gas unit rate + standing charge | Gas typically dominates costs in homes with central heating. | Lower than SVT if you want immediate savings. | Dual fuel discounts that don’t outweigh weaker rates. |
| Exit fees | Could wipe out savings if you switch again or move. | Low or £0 if you want flexibility. | Fees per fuel (electricity + gas) and long fixed terms. |
| Payment method & eligibility | Availability and pricing can change by Direct Debit vs prepay. | Matches how you actually pay and your meter setup. | Online-only billing, smart meter requirements, or credit checks. |
Checklist: a fixed deal may suit you if…
- You want predictable rates for budgeting.
- You plan to stay in the property for the term.
- The fix is clearly competitive on both unit rates and standing charges for your region.
- Exit fees are low enough that you could still switch if the market improves.
A fixed deal may not suit you if…
- You may move soon or change tenancy arrangements.
- You’re a low user and the fix has a higher standing charge.
- You’re on (or moving to) a meter type with limited fixed options (some prepay/Economy 7 setups).
- The fix is only slightly cheaper than SVT, but has hefty exit fees.
Costs, exclusions and common pitfalls (UK)
A tariff can look cheapest on a headline figure but still be poor value once you account for fees, how you pay, and how you actually use energy.
Exit fees (early termination)
Many fixes charge exit fees per fuel. If you think you may switch again, prioritise low/no exit fee options or a shorter term.
Standing charge surprises
Low users feel standing charge increases the most. Always compare standing charges as carefully as unit rates.
Meter type & time-of-use
Economy 7/two-rate works best if you can shift a meaningful share of use off-peak. If not, a single-rate tariff may cost less.
Direct Debit vs prepayment
Tariff availability and pricing can differ by payment method. If you’re on prepay, check whether switching requires a meter change.
“Cheapest” based on typical use
Many comparisons assume a typical medium-use household. If you’re low or high use, your cheapest option can differ.
Switch timing and start date
Your new tariff normally starts after the switch completes. If you’re close to the cap change date, confirm the expected start date and rates.
Important: If you’re in debt on your energy account, switching may still be possible, but rules vary and you may need to agree a repayment plan. If you’re struggling to pay, see Citizens Advice support options before committing to a tariff.
FAQs: fixed tariffs after the October cap
Is the price cap the maximum I can pay?
No. Ofgem’s cap limits the unit rates and standing charges on standard variable tariffs (SVTs) for typical customers. Your bill still depends on how much energy you use.
How do I know if a fix is cheaper than the October cap for my region?
Compare the fix’s electricity and gas unit rates + standing charges to the SVT cap rates for your postcode region and payment method. A personalised comparison is the quickest way to do this accurately.
Do fixed tariffs always have exit fees?
No, but many do—often per fuel. Always check the tariff information label or summary before you switch, especially for 12–24 month fixes.
I’m on Economy 7. Can I switch to a fixed tariff?
Often yes, but choice can be more limited. Make sure you compare day and night rates and consider whether you actually use enough electricity off-peak to benefit.
What if I rent—can I still switch?
Usually yes, as long as you pay the energy bills and your tenancy allows it. If you’re on a prepayment meter, changing supplier is often possible, but a meter change may require landlord permission.
Will switching affect my supply?
No—your gas and electricity keep flowing. The change is administrative. You’ll usually provide meter readings around the switch date for accurate final and opening bills.
Can I switch if I’m in debt to my current supplier?
Sometimes. It depends on the debt amount, the type of meter, and whether you have an agreed repayment plan. If you’re struggling, Citizens Advice can help you understand your options.
What’s the safest way to choose a fixed deal right now?
Prioritise transparent pricing: competitive unit rates and standing charges for your region, reasonable exit fees, and a term length that matches how long you expect to stay. Avoid choosing based on a headline “average bill” alone.
Trust, methodology and sources
Page details
- Written by: EnergyPlus Editorial Team
- Reviewed by: Energy Specialist
- Last updated: May 2026
How we assess “cheapest fixed tariff after the October cap”
We don’t name a single universal “cheapest” tariff because availability and prices vary by customer. Instead, we help you identify the cheapest for your home using these steps:
- Match eligibility: postcode/region, meter type (single-rate, Economy 7, smart, prepay), and payment method.
- Compare pricing components: electricity and gas unit rates (p/kWh) and standing charges (p/day) against the applicable SVT cap rates.
- Estimate annual cost: using your stated or typical annual consumption in kWh, then add standing charges for 365 days.
- Account for tariff terms: exit fees, fixed term length, and any conditions (e.g., online-only, Direct Debit required).
Limitations: Estimates can differ from your bills because usage varies by household, weather, home efficiency, occupancy, and billing schedules. Supplier availability and pricing can change daily. Always confirm rates in the supplier’s tariff summary before switching.
Ready to check the cheapest fixed deal for your postcode?
Compare fixed tariffs against the October cap rates for your region, meter type and payment method—then decide with confidence.
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