Best rollover energy tariff deals in the UK this month
A practical guide to rollover (autorenewal) tariffs: what they are, when they can be good value, and how to compare them safely if your fix is ending.
- See when rollover tariffs can beat the default tariff (and when they won’t)
- Understand prices, exit fees, eligibility and smart/prepay meter quirks
- Get a whole-of-market quote in minutes (no promises, just clear estimates)
Prices vary by region, meter type and payment method. Examples are illustrative and should be checked against your supplier’s actual offer and your Ofgem tariff information label.
Fast answer: what are the best rollover tariff deals this month?
In the UK, a rollover tariff is usually a supplier’s autorenewal fixed deal offered when your current fix ends. The “best” rollover deal for you this month is the one that:
Beats (or closely matches) your alternative
- Cheaper than the supplier’s default tariff you’d go onto otherwise
- Competitive with other fixes available to your meter type and payment method
- Reasonable standing charge and unit rates for your region
Fits your plans and avoids nasty surprises
- Exit fees you’re comfortable with (or none, if you prefer flexibility)
- Term length that matches your outlook (often 12–24 months)
- Eligibility checked: prepay, smart, Economy 7, and region can change availability
Key takeaway: A “good” rollover offer is not one universal tariff. It’s a personal best-fit deal once you compare your supplier’s rollover price against other available options (and your likely default tariff) using your postcode, meter type and usage.
When rollover deals can be worth taking
- You want no switch and your supplier offers a genuinely competitive rate
- You’re inside the 49-day switching window and can move later with no exit fees on many fixes (check your terms)
- You value price certainty and accept the trade-offs (exit fees/term)
When to be cautious
- The offer is only slightly cheaper than default but locks you in with high exit fees
- You’re likely to move home soon (tenants in particular)
- You have Economy 7 or prepay and the “headline” deal isn’t available to you
Compare rollover deals properly (and keep control)
If your fix is ending, you’ll typically see three routes:
1) Accept your supplier’s rollover fixed deal
Convenient, but you should still check unit rates, standing charge, term length, and exit fees.
2) Do nothing and move to your supplier’s default tariff
Often flexible and capped by Ofgem’s price cap where applicable, but may be pricier than competitive fixes.
3) Switch to another supplier’s deal
Potentially better value, but availability depends on your meter type, region and payment method.
Tip for UK customers: Suppliers commonly contact you before your fix ends. If you’re within the last few weeks, compare now so you don’t drift onto a default tariff by accident. If you’re in debt or on prepayment, you can still compare, but your options may be narrower.
What you’ll need (takes 2 minutes)
- Your postcode (prices vary by region and network charges)
- Your meter type (credit, smart, prepayment, Economy 7)
- Rough usage (or latest bill). If you’re unsure, we can use typical household estimates.
Prefer to start without the form? You can also go straight to the quote journey.
Get a whole-of-market comparison
Share a few details and we’ll help you compare rollover-style fixes and other available tariffs for your home.
Important: If you’re on prepayment or have Economy 7, some deals shown elsewhere online may not apply. A proper comparison should filter by your meter type and payment method.
Rollover deals vs other choices: a clear comparison
Use this table to sense-check whether a rollover offer is likely to suit you. It won’t replace a personalised quote (prices vary by region and meter), but it helps you avoid the common traps.
| Option | What it is | Best for | Watch-outs |
|---|---|---|---|
| Rollover fixed deal | Your current supplier’s fixed tariff offered near the end of your term (sometimes “autorenewal”). | You want convenience, and the price is competitive for your region/meter. | Exit fees, long terms, and offers that look good but have a high standing charge. |
| Supplier default tariff | What you move onto if you do nothing after your fix ends. | Flexibility (often no exit fee) while you decide. | May be more expensive than a good fix; prices can change (within rules). |
| Switching to another fix | A fixed tariff with a different supplier. | You’re price-led and happy to switch to secure a better fit. | Availability differs for prepay/E7/smart; credit checks aren’t typical for energy, but debt rules can apply. |
| Tracker / variable product | Prices move (e.g., with wholesale markets) rather than fixed for a term. | You can tolerate price movement and want flexibility. | Bills can rise; check how rates are set and any caps/limits. |
Decision checklist (quick)
- Is the rollover deal actually cheaper?
- Compare unit rates and standing charges (not just monthly Direct Debit estimates).
- Are you inside your no-penalty window?
- Many fixed tariffs don’t charge exit fees in the last 49 days of the contract — confirm in your terms.
- Does it match your meter & payment method?
- Prepay and Economy 7 can change which deals you can access.
Who a rollover tariff suits (and who it doesn’t)
Suits you if: you want minimal admin, your supplier’s offer is competitive, and you’re comfortable with the term/exit fee.
May not suit if: you might move soon, you want the lowest possible price, or you need flexibility (e.g., uncertain income/usage).
Two realistic scenarios (with numbers)
These examples show how to compare rollover deals. They are not a promise of savings. We use simplified maths: annual cost ≈ (unit rate × usage) + (standing charge × 365). Your actual bill depends on exact tariff rates, region and consumption patterns.
Scenario A: Dual fuel, typical usage, credit meter
- Assumed usage: 2,900 kWh electricity + 12,000 kWh gas/year
- Standing charges: elec 55p/day, gas 32p/day (illustrative)
- Rollover offer: elec 25p/kWh, gas 6.2p/kWh
- Alternative fix: elec 24p/kWh, gas 6.0p/kWh
Estimated annual cost (rollover):
Electricity: 2,900×£0.25 = £725
Gas: 12,000×£0.062 = £744
Standing charges: (0.55+0.32)×365 = £317.55
Total ≈ £1,786.55
Estimated annual cost (alternative fix):
Electricity: 2,900×£0.24 = £696
Gas: 12,000×£0.060 = £720
Standing charges (same): £317.55
Total ≈ £1,733.55
What this tells you: the rollover deal isn’t “bad”, but the alternative looks ~£53/year lower on these assumptions. If the rollover has a high exit fee, the cheaper deal may be worth switching for; if you value convenience, you might accept the difference.
Scenario B: Electricity-only flat, low usage, high standing charge risk
- Assumed usage: 1,800 kWh electricity/year
- Rollover offer: 24p/kWh, standing charge 68p/day
- Alternative: 26p/kWh, standing charge 45p/day
Estimated annual cost (rollover):
Units: 1,800×£0.24 = £432
Standing charge: £0.68×365 = £248.20
Total ≈ £680.20
Estimated annual cost (alternative):
Units: 1,800×£0.26 = £468
Standing charge: £0.45×365 = £164.25
Total ≈ £632.25
What this tells you: even with a higher unit rate, the lower standing charge can win for low users. Rollover offers can look attractive on unit rates alone, so always check both parts.
Costs, exclusions and common rollover pitfalls (UK-specific)
Rollover tariffs aren’t automatically good or bad — but these are the issues that most often cause regret.
Exit fees and “lock-in”
Some rollover fixes include per-fuel exit fees. If you might move home or want to switch quickly, this matters more than small price differences.
Check: exit fee amount, and whether it applies if you switch within the last 49 days of the contract.
Standing charge surprises
Low users and electricity-only homes can be hit harder by high standing charges, even if the unit rate looks competitive.
Rule of thumb: compare annual cost using your usage, not just p/kWh.
Meter & payment method exclusions
A “best deal” headline may only apply to Direct Debit, standard credit meters, or certain smart meter setups.
Especially relevant: prepayment meters and Economy 7 (two-rate tariffs).
Direct Debit changes aren’t the same as price changes
Suppliers can adjust your monthly Direct Debit to reflect estimated usage and account balance. That doesn’t always mean the tariff is better or worse.
Regional differences matter (a lot)
Unit rates and standing charges vary by region (network costs). Always check offers based on your postcode, not national averages.
If you’re in rented accommodation: you can usually switch if you pay the energy bills, but check your tenancy agreement and consider whether you’ll move before any exit fees would be worth paying. Citizens Advice explains switching rights and problems that can arise.
Rollover energy tariffs: FAQs
What does “rollover” mean on an energy tariff?
It usually means your supplier offers a new fixed tariff when your current fix is ending (sometimes automatically unless you opt out). The new tariff has its own unit rates, standing charges, term length and exit fees.
If I do nothing when my fix ends, what happens?
You’ll typically move onto your supplier’s default tariff (often a variable tariff). It’s usually flexible but can be more expensive than a competitive fix. Your supplier should notify you before the end date.
Are rollover tariffs capped by the Ofgem price cap?
The Ofgem price cap applies to default tariffs and certain other variable tariffs for customers on standard meters in Great Britain, but fixed tariffs (including many rollover fixes) aren’t generally set by the cap. The cap is a limit on unit rates and standing charges, not a cap on your total bill.
Can I avoid exit fees if I switch around the end of my fixed tariff?
Often, yes — many suppliers don’t charge exit fees if you switch within the final 49 days of your fixed term, but this depends on your contract terms. Always confirm on your tariff information or supplier communications.
I’m on a prepayment meter. Can I get a rollover deal or switch?
Sometimes. Options can be more limited, and some tariffs are restricted to Direct Debit. If you have debt on your meter, switching may be possible within agreed rules. A comparison should filter specifically for prepay-eligible tariffs.
Do smart meters affect rollover deals?
They can. Some tariffs are smart-meter-only, and some suppliers have specific requirements for smart meter compatibility. If your smart meter is operating in “dumb” mode after a switch, your tariff options may still be fine, but readings may need manual submission.
I’m on Economy 7. What should I look for in a rollover offer?
Check both day and night unit rates and make sure the times match your meter’s schedule. A deal that looks cheap on the day rate can be poor value if the night rate is high (or if your usage pattern has changed).
How long does an energy switch take in the UK?
Switching times can vary. Your new supplier should confirm the expected timeline and keep you updated. You won’t lose supply during a switch.
Trust, methodology and sources
Page ownership
- Written by:
- EnergyPlus Editorial Team
- Reviewed by:
- Energy Specialist
- Last updated:
- June 2026
How we assess “best rollover tariff deals”
Because rollover tariffs are supplier-specific and vary by region and meter type, we don’t publish a single “top 10” list that could mislead. Instead, this guide helps you identify the best rollover deal for your home using transparent comparison criteria:
- Total estimated annual cost (unit rates + standing charges) based on your usage and postcode
- Eligibility filters: fuel type, region, payment method (e.g., Direct Debit), meter type (standard credit, smart, prepay, Economy 7)
- Contract terms: length, exit fees, and any end-of-term switching rules
- Practical fit: moving home likelihood, appetite for switching, and preference for price certainty vs flexibility
Limitations: Example calculations are illustrative and rounded. Live tariff availability can change quickly, and some suppliers provide rollover offers directly to existing customers (not always publicly listed). Always confirm the tariff information label and your personalised quote before agreeing.
Sources we rely on (UK)
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