Ofgem April 2027 price cap: what will I pay?
A UK guide to what the April 2027 Ofgem price cap could mean for your bill — how the cap works, what actually changes, and how to estimate your own costs by meter type and payment method.
- Answer-first estimate guidance (with clear assumptions and limits)
- Two realistic household examples with numbers you can sanity-check
- How to compare the cap vs fixed deals (and when to switch)
Estimates only. The Ofgem price cap applies to standard variable and default tariffs, not all fixed deals. Your actual costs depend on usage, region, meter type and payment method.
Fast answer: Ofgem April 2027 price cap — what will I pay?
You can’t know a single exact number yet — the Ofgem April 2027 price cap will be set much nearer the time and varies by region, payment method and meter type. What you will pay is your unit rates (p/kWh) and daily standing charges (p/day) for a standard variable/default tariff, multiplied by your actual usage.
Most important point
The cap is not a cap on your total bill. It caps the price per unit and standing charge on SVT/default tariffs.
Who it applies to
If you’re on a standard variable tariff or a supplier’s default tariff, your prices usually track the cap levels for your area.
Best next step
Use your recent kWh usage to estimate what different rates mean, then compare with fixed deals if available.
Quick check: If a headline mentions “typical annual bill”, that is based on a model household consumption (not your home). You’ll pay more than that if you use more energy, and less if you use less.
Estimate what you’ll pay (the way bills are actually calculated)
To estimate “what will I pay” under an Ofgem price cap period, focus on rates rather than the headline. Your bill is roughly:
Electricity cost = (electricity unit rate × kWh used) + (electricity standing charge × days)
Gas cost = (gas unit rate × kWh used) + (gas standing charge × days)
Then add them together for dual fuel (if you have both).
Step-by-step: get a usable estimate in 5 minutes
- Find your annual usage in kWh on a recent bill/app (electricity and gas separately). If you have only monthly usage, multiply by 12 as a rough guide.
- Note your meter type (single-rate, Economy 7, or smart meter) and payment method (Direct Debit, cash/cheque, prepayment).
- Use the current/most recent cap-rate information as a starting point (Ofgem publishes tables by region, meter and payment method). April 2027 will differ, but the structure is the same.
- Multiply out the unit rate and standing charge using the formula above.
- Stress-test your estimate: try +10% and +20% usage for a cold winter or higher occupancy.
Why April 2027 is hard to predict: the cap changes with wholesale energy costs, network costs, operating costs and policy costs. Even if wholesale prices fall, standing charges or other components can move differently.
Check deals for your home
If you tell us a few details, we’ll show whole-of-market options available for your postcode and preferences. This helps you compare any fixed deal against what you’d likely pay on a price-capped SVT/default tariff.
Good to know: fixed deals may include exit fees. SVT/default tariffs usually don’t, but they can be more exposed to cap changes.
Two realistic scenarios (illustrative numbers, with assumptions)
These examples show how to calculate bills from rates. They are not a forecast of April 2027 prices. We use rounded example rates to demonstrate the maths.
Scenario A: small flat, electricity only
- Assumptions
- 2,000 kWh/year electricity; 365 days; single-rate meter; Direct Debit.
- Example rates (illustrative)
- Unit rate 28p/kWh; standing charge 55p/day.
- Estimated annual cost
- (2,000 × £0.28) + (365 × £0.55) = £560 + £200.75 = £760.75/year (about £63/month).
If your home uses more electric heating, your kWh could be much higher than 2,000.
Scenario B: family home, dual fuel
- Assumptions
- 3,100 kWh/year electricity; 12,000 kWh/year gas; 365 days; Direct Debit.
- Example rates (illustrative)
- Electric: 27p/kWh + 55p/day. Gas: 7p/kWh + 32p/day.
- Estimated annual cost
- Electric: (3,100 × £0.27) + (365 × £0.55) = £837 + £200.75 = £1,037.75
Gas: (12,000 × £0.07) + (365 × £0.32) = £840 + £116.80 = £956.80
Total: £1,994.55/year (about £166/month).
Gas use varies most with insulation, thermostat settings and weather — try a +20% winter stress-test.
Caveat: Rates in the Ofgem cap differ by distribution region and can differ by payment method (e.g. prepayment) and meter type (e.g. Economy 7). Always check the tables relevant to you.
Cap vs fixed deals: what changes what you pay
For April 2027, the practical choice for many households will still be: stay on an Ofgem price-capped SVT/default tariff, or move to a fixed tariff (if suitable). The best option depends on your risk tolerance, budget stability, and whether the fixed rate is competitive for your usage.
| Option | What you’re paying for | Pros | Cons / watch-outs |
|---|---|---|---|
| SVT/default (price cap) | Rates limited by Ofgem cap for your region/meter/payment method. | No long commitment; usually no exit fees; tracks cap down if it falls. | Less budget certainty; cap can rise; standing charges still apply even with low usage. |
| Fixed tariff | Unit rates and standing charges fixed for the term (e.g. 12–24 months). | More predictable monthly costs; protection if cap rises during the term. | May have exit fees; if the cap falls, you may pay more until the fix ends. |
| Prepayment (PPM) | Cap has separate rates; top-ups and emergency credit affect budgeting. | Spend control; some PPM cap protections apply. | You can still build debt; friendly credit/emergency credit varies; ensure you know how to access support. |
Decision checklist (who it suits / who it doesn’t)
A fixed deal may suit you if…
- You value budget certainty and can commit to the term.
- The fixed unit rates + standing charges are competitive for your usage pattern.
- You’re comfortable with any exit fee if you need to leave early.
- You’re worried the cap may rise and want protection.
Staying on the price cap may suit you if…
- You want flexibility and to switch again without penalties.
- You expect your usage to change soon (moving home, renovation, occupancy changes).
- You’re waiting for fixed deals to improve, and prefer not to lock in today’s rates.
- You have very low usage and want to avoid a fix with higher standing charges.
Key comparison tip: don’t compare tariffs using only the “typical annual bill”. Compare the unit rate(s) and standing charge for your meter, then run the maths using your kWh from the last 12 months.
Costs, exclusions and common pitfalls (April 2027 and any cap period)
1) Standing charges still apply
Even if you use little energy (or are away), you typically pay a daily standing charge for electricity and/or gas. This is why “low usage” households should check standing charges carefully.
2) Cap varies by region and meter
Ofgem publishes different cap levels across Great Britain electricity network regions and by payment method/meter type (including prepayment and Economy 7).
3) It doesn’t automatically apply to all tariffs
The cap is mainly for standard variable/default tariffs. Fixed deals can be above or below cap-equivalent costs and may include additional terms (like exit fees).
4) Economy 7 can change the picture
If you have a two-rate tariff, what you pay depends on your split between day and night use. A cheap night rate only helps if you can shift meaningful usage off-peak.
5) “Monthly direct debit” is not the price
Your Direct Debit is often set to smooth costs across the year. If it’s too low, you can build up debt; if too high, you may build credit. The rate per kWh and standing charge matter most.
6) Northern Ireland is different
Ofgem’s GB price cap does not apply in Northern Ireland (which has a different market and regulator). If you live in NI, check your supplier’s tariff rules and local regulation.
If you’re struggling to pay: support may be available (grants, payment plans, emergency credit for prepay). Start with Citizens Advice guidance and then speak to your supplier as early as possible.
FAQs
What is the Ofgem price cap for April 2027?
The April 2027 Ofgem price cap will be a set of maximum unit rates (p/kWh) and standing charges (p/day) for standard variable and default tariffs in Great Britain. The actual April 2027 levels are published closer to the period and vary by region, meter type and payment method.
Does the Ofgem price cap mean my total bill is capped?
No. The price cap does not cap your total bill. It caps the price per unit of energy and the daily standing charge on SVT/default tariffs. If you use more energy, you pay more; if you use less, you pay less.
How do I estimate what I’ll pay under the April 2027 price cap?
Use your annual kWh from a recent bill, then calculate: (unit rate × kWh) + (standing charge × 365 days) for electricity and gas. For April 2027 specifically, swap in the cap rates for your region, meter type and payment method once Ofgem publishes them.
Will I be on the Ofgem price cap if I’m on a fixed tariff?
Usually not. Fixed tariffs set their own unit rates and standing charges for the term. The Ofgem price cap mainly limits prices on standard variable and default tariffs. A fixed deal can be cheaper or more expensive than cap-equivalent pricing, depending on the offer and your usage.
Why do people in different parts of Great Britain pay different capped rates?
Because the cap includes regional network costs and other location-linked factors. Ofgem publishes cap levels by electricity distribution region (and by payment method and meter type), so two households with the same usage can have different unit rates and standing charges.
Is the Ofgem price cap the same for prepayment meters?
Not always. Ofgem sets separate cap levels for prepayment (PPM) compared with Direct Debit or other payment methods. If you have a prepayment meter, use the cap tables for PPM and your region to estimate costs.
Can I switch energy supplier before April 2027?
Yes, in most cases you can switch at any time. Check whether your current tariff has an exit fee (common on fixed deals). SVTs typically don’t have exit fees. If you’re in debt to your supplier, you may still be able to switch, but there can be rules and limits.
Where can I find the official Ofgem price cap rates when they’re released?
Ofgem publishes the cap announcement and detailed tables (including unit rates and standing charges by region and payment method) on its website. You can also use Citizens Advice for plain-English explanations of what the cap does and doesn’t mean.
Trust, methodology and sources
Editorial details
- Written by
- EnergyPlus Editorial Team
- Reviewed by
- Energy Specialist
- Last updated
- July 2026
How we assess “what will I pay” for April 2027
Because April 2027 cap levels are not published far in advance, we focus on method over prediction. Our guidance is built around the billing formula used across UK domestic energy: unit rates and standing charges applied to your actual consumption.
- Assumptions for examples: 365-day year; single-rate electricity unless stated; example rates are illustrative to demonstrate calculation.
- What we don’t assume: we do not guess wholesale prices for April 2027 or promise savings; we do not assume a particular supplier or tariff availability.
- Key variables you must set: your kWh usage, payment method (Direct Debit / other / prepay), meter type (single-rate / Economy 7 / smart meter), and region.
- Limitations: actual bills can differ due to tariff-specific terms, seasonal Direct Debit smoothing, VAT treatment, and any changes in your consumption.
Sources (official and consumer guidance)
- Ofgem: energy price cap (official announcements and cap tables)
- Citizens Advice: energy supply and billing help (consumer support and rights)
- GOV.UK: switch energy supplier (how switching works in the UK)
Accuracy note: If Ofgem changes cap methodology, or if you’re on an unusual tariff type (e.g. heat network, bundled services, or complex time-of-use), use supplier documentation and official cap tables for the closest match.
Want a personalised view of what you could pay?
Compare available tariffs for your postcode and preferences, then benchmark them against price-capped SVT/default pricing. It’s the quickest way to turn “April 2027” headlines into numbers relevant to your home.
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