Ofgem price cap April 2027: what will I pay?
Get a clear, UK-focused way to estimate what you could pay in April 2027 under the Ofgem price cap — plus what actually changes your bill (usage, region, meter type and payment method).
- Understand what the price cap does (and doesn’t) control
- Use two realistic scenarios to estimate monthly costs
- Check whether a fixed deal could suit you nearer the time
Estimates only. The cap is updated quarterly and your bill depends on usage, region, meter type and payment method.
Fast answer: you can’t know your April 2027 bill yet — but you can estimate it sensibly
The Ofgem price cap sets a maximum price suppliers can charge for default tariffs (usually Standard Variable Tariffs) in Great Britain. Because the cap is reviewed every 3 months, no website can tell you exactly what you’ll pay in April 2027 today.
What you can do now: estimate a range by combining (1) your usage, (2) likely cap-style unit rates/standing charges, and (3) your meter and payment method. This page shows you a practical way to do that — and what would change the number.
Key takeaways
- The cap is not a cap on your total bill — you pay more if you use more.
- April 2027 sits in the April–June cap period, set shortly before it starts.
- Your costs vary by region, payment method and meter type (single rate vs Economy 7 vs smart/time-of-use).
- If you’re on a fixed tariff, your prices usually won’t track the cap while the fix lasts.
What to gather (2 minutes)
- Your annual usage in kWh (from bills or your online account)
- Whether you have gas, electricity, or both
- Your meter: single-rate or Economy 7
- Your postcode (regional charges vary)
If you just want to act
If you’d rather compare deals than forecast a future cap, you can check available tariffs in minutes.
Estimate what you could pay in April 2027 (and see your options)
We can’t publish an April 2027 cap figure today — but we can help you understand your likely costs by focusing on what drives your bill: kWh usage + standing charges. If you share a few details, we’ll show quotes you can compare now (no obligation).
Good to know: The price cap affects default tariffs. If you’re currently fixed, your April 2027 prices depend on when your fix ends and what you choose next.
A simple way to estimate (no guessing required)
Step 1: Find your annual usage (kWh)
Look for “electricity usage” and “gas usage” in kWh on your bill or account. If you can only see £, use your supplier’s online usage summary or smart meter app.
Step 2: Apply unit rates + standing charges
Your bill is essentially: (kWh × unit rate) + (days × standing charge) for each fuel. The cap sets maximums for those rates, by region and payment type.
Step 3: sanity-check with scenarios
Use the worked examples below to see how much usage changes the outcome — and why two homes on the same “cap” can pay very different amounts.
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Two realistic April-style scenarios (with numbers)
These examples show how to estimate a monthly bill using typical bill structure (unit rates + standing charges). They are illustrative and not a forecast of April 2027 cap levels.
Assumptions for both examples: Direct Debit payment; single-rate electricity; 365 days; example rates used purely to demonstrate the maths: electricity 28p/kWh + 60p/day standing charge; gas 7p/kWh + 32p/day standing charge. Your region, supplier and cap period can differ.
Scenario A: Small flat (electricity only)
- Electricity usage
- 1,800 kWh/year (150 kWh/month)
- Electricity unit cost
- 1,800 × £0.28 = £504.00/year
- Standing charge
- 365 × £0.60 = £219.00/year
- Estimated total
- £504 + £219 = £723/year (≈ £60/month)
What changes it most: electric heating, tumble dryers, older appliances, and working from home can push usage up quickly.
Scenario B: Typical family home (dual fuel)
- Electricity usage
- 3,100 kWh/year
- Gas usage
- 12,000 kWh/year
- Electricity cost
- 3,100 × £0.28 = £868.00/year
- Electricity standing
- 365 × £0.60 = £219.00/year
- Gas cost
- 12,000 × £0.07 = £840.00/year
- Gas standing
- 365 × £0.32 = £116.80/year
- Estimated total
- £868 + £219 + £840 + £116.80 = £2,043.80/year (≈ £170/month)
What changes it most: insulation/boiler efficiency, thermostat habits, and how many people are at home during the day.
Why your April bill can look “wrong” even under the cap: suppliers often set Direct Debit as a fixed monthly amount to spread winter costs across the year. Your monthly payment might not match your exact monthly usage, but your account balance should be reviewed periodically.
Price cap vs fixed tariff (what’s better for April 2027?)
A common question is whether you should “wait for the cap” or fix. The helpful answer is: it depends on your risk tolerance, how long you plan to stay, and whether the fixed deal’s unit rates + standing charges beat your alternatives.
| What you’re comparing | Default tariff (price-capped) | Fixed tariff |
|---|---|---|
| Price changes | Can change every quarter in line with cap updates | Usually stays the same for the fixed term (check T&Cs) |
| Certainty for budgeting | Medium (cap can rise or fall) | Higher (known unit rates/standing charges) |
| Exit fees | Typically none on standard variable tariffs (varies by supplier) | Often applies if you leave before the end of the fix |
| Who it can suit | People who want flexibility and can tolerate price movement | People who want predictable rates and will likely stay put |
| What matters most | Your usage + your region’s cap rates | Whether the fixed rates beat the alternatives over your expected time in the home |
Decision checklist (quick)
- Do you plan to move in the next 12–18 months? (Exit fees may matter.)
- Is your household’s usage stable or changing (new baby, WFH, heat pump)?
- Are you on Economy 7 or using storage heaters? (Unit rates can differ a lot.)
- Would you rather accept possible quarterly changes or pay for certainty?
- Have you checked your standing charges as well as unit rates?
A sensible approach for April 2027 planning
- If you’re fixed: note when it ends and any exit fee.
- Track your kWh usage through 2026–27 (seasonality matters).
- A few weeks before April 2027, compare: new fix vs your supplier’s variable tariff vs cap context.
- Choose based on total expected cost and your flexibility needs.
Costs, exclusions and common pitfalls (so your estimate stays realistic)
Most confusion about the April 2027 cap comes from mixing up headline averages with how bills are actually calculated. These are the most common “gotchas”.
1) “The cap means I’ll pay £X per year”
The cap is based on typical usage. If you use more than typical, you’ll pay more. If you use less, you’ll pay less.
2) Standing charges can dominate low-usage homes
If you have low consumption (e.g., a small flat), standing charges can be a large share of your total. Don’t compare tariffs on unit rate alone.
3) Payment method matters
Ofgem sets cap levels by payment method (e.g., Direct Debit vs other methods). If you pay on receipt of bill or prepay, your rates can differ.
4) Economy 7 and time-of-use tariffs
If you have Economy 7 or a smart meter time-of-use tariff, you can have different day/night rates. A single-rate estimate may not fit your pattern.
5) Region and network costs
The cap varies by regional electricity distribution area. Two households with identical usage can pay different standing charges and unit rates based on postcode.
6) April bills may reflect winter catch-up
If you pay by Direct Debit, suppliers often adjust payments after winter. Your April payment may include rebalancing of your account, not just that month’s energy use.
Important exclusion: The Ofgem price cap applies to Great Britain (England, Scotland and Wales). Northern Ireland has a different market and regulator, so cap rules differ.
FAQs
Will the Ofgem price cap go up in April 2027?
No one can state that as fact today. The cap changes quarterly based on underlying costs and Ofgem’s methodology. The April 2027 level will be set close to the start of the April–June 2027 period.
Does the cap apply to fixed tariffs?
Generally, no. The cap is designed for default tariffs. Fixed deals have their own rates and terms for the fixed period. Always check the tariff information label and your contract end date.
Is the price cap the same for everyone in the UK?
It varies by region, payment method, and meter type. Great Britain is covered by Ofgem’s cap; Northern Ireland is not under the same scheme.
What’s the difference between unit rate and standing charge?
The unit rate is what you pay per kWh used. The standing charge is a daily fixed amount to cover things like network and metering costs. Both can be capped, and both affect what you pay overall.
If I switch now, can I still be affected by the cap in April 2027?
Yes. If you move onto a default tariff at any point (for example, when a fix ends), your rates will usually follow the cap for that period. If you’re on a fixed tariff in April 2027, your rates typically follow that fix’s terms instead.
How do I estimate my own April 2027 costs without guessing the cap?
Use your annual kWh and plug into (kWh × unit rate) + (days × standing charge). For planning, try a low/mid/high range of rates and see how sensitive your bill is to usage and standing charges. Then compare to any fixed deals available near the time.
Why is my Direct Debit higher than my “monthly usage” cost?
Many suppliers set Direct Debit to smooth seasonal spending (higher winter usage, lower summer usage). Your payment may also be adjusted to clear debit/credit on your account.
What if I’m struggling to pay my energy bills?
You’re not alone. Contact your supplier as early as possible to discuss a payment plan or support. You can also get independent help from Citizens Advice.
Trust, methodology and sources
Page ownership
- Written by
- EnergyPlus Editorial Team
- Reviewed by
- Energy Specialist
- Last updated
- August 2026
How we assess “what will I pay?”
Because April 2027 is a future cap period, we avoid false precision. Instead, we:
- Explain the bill mechanics: unit rates + standing charges for gas and electricity
- Highlight the main variables: kWh usage, region, meter type, payment method
- Use worked examples to show the maths clearly
- Flag limitations: rates used in scenarios are illustrative and not a prediction of the April 2027 cap
Limitations: We do not know future wholesale prices, policy costs, network charges or supplier pricing strategies. Your personal bill also depends on whether you’re fixed, your Direct Debit smoothing, and any account balance adjustments.
Sources (official and independent)
Want a clearer answer for your home?
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