The average UK household pays £1,738 per year for gas and electricity in 2026, under the Ofgem price cap. But your actual bill depends on your usage, your tariff type, your payment method, and whether you have switched recently. This hub explains how UK energy bills are structured, how the price cap works, and how to reduce what you pay — whether through switching, tariff choice, or payment method changes.
If your priority is physical efficiency upgrades such as insulation or heat pumps, see the Energy Efficiency Hub.
How the Ofgem price cap works in 2026
The price cap is not a maximum bill — it is a cap on the unit rates and standing charges suppliers can charge. Your actual bill depends on how much energy you use.
| Price cap element | April 2026 typical rate |
|---|---|
| Electricity unit rate | ~24p per kWh |
| Electricity standing charge | ~61p per day |
| Gas unit rate | ~6.2p per kWh |
| Gas standing charge | ~32p per day |
| Typical annual bill (gas + electric) | £1,738 |
| Ofgem review frequency | Quarterly |
The cap is based on a “typical” household using 11,500 kWh of gas and 2,700 kWh of electricity per year. If you use more, your bill will exceed £1,738. If you use less — for example, you are a single occupant or have recently improved your insulation — your bill will be lower.
Fixed vs variable tariffs — how to decide
| Factor | Fixed tariff | Variable (default) tariff |
|---|---|---|
| Unit rates | Locked for 12–24 months | Track the Ofgem price cap |
| Risk | Pay more if the cap falls | Pay more if the cap rises |
| Exit fees | Possible if you leave early | None (or 49-day notice protection) |
| Availability | Requires active comparison and sign-up | Default for most households |
| Best for | Certainty, budget planning | Flexibility, expecting prices to fall |
The right choice depends on your expectations and risk tolerance. If fixed rates are within 5–10% of the current cap, fixing buys meaningful certainty at low premium. If fixed rates are significantly above the cap, variable is likely better.
How to compare tariffs properly
Headline unit rates alone do not tell the full story. To compare fairly:
- Collect your actual annual usage in kWh (from your bill or supplier portal)
- Multiply kWh used by the unit rate on each tariff
- Add the annual standing charge (daily rate × 365)
- Compare total annual costs — not monthly estimates or introductory rates
How switching works in 2026
The UK energy switching process operates through Ofgem’s regulated framework. Switching takes around 5 working days from submitting your request.
| Step | What happens |
|---|---|
| 1. Compare tariffs | Use a comparison site (Uswitch, MoneySuperMarket, or direct with suppliers) |
| 2. Gather your details | Annual usage in kWh, MPAN/MPRN numbers from current bill, recent meter reading |
| 3. Select new tariff | Choose and confirm — your new supplier handles the rest |
| 4. Transfer period | Old supplier continues supply; new supplier takes over within 5 working days |
| 5. Final bill | Old supplier issues a final bill based on your closing meter reading |
| 6. Credit balance | Any credit with old supplier must be refunded within 14 days |
You cannot be charged an exit fee if you switch within 49 days of receiving notice of a price increase from your current supplier.
Worked example — switching and saving
Helen is on her energy supplier’s standard variable tariff. Her annual usage is 12,000 kWh gas and 3,000 kWh electricity.
At April 2026 cap rates:
- Gas: 12,000 kWh × 6.2p = £744
- Electricity: 3,000 kWh × 24p = £720
- Standing charges: (61p + 32p) × 365 = £339.45
- Total: approximately £1,803/year
She finds a 12-month fixed tariff at 23p/kWh for electricity and 5.9p/kWh for gas:
- Gas: 12,000 kWh × 5.9p = £708
- Electricity: 3,000 kWh × 23p = £690
- Standing charges: (60p + 31p) × 365 = £332.15
- Fixed total: approximately £1,730/year — saving £73
Not a dramatic saving, but Helen also gains 12 months of certainty if cap rates rise in the July or October 2026 review.
Understanding your energy bill
A typical dual-fuel energy bill contains:
| Bill line item | What it represents |
|---|---|
| Unit rate (electricity) | Per-kWh charge for electricity consumed |
| Unit rate (gas) | Per-kWh charge for gas consumed (in pence/kWh) |
| Standing charge (electricity) | Fixed daily charge for grid connection |
| Standing charge (gas) | Fixed daily charge for gas network |
| VAT | 5% on all domestic energy (reduced rate) |
| Direct debit estimate | Based on annual forecast usage |
Direct debit amounts are estimates. Suppliers calculate them based on your estimated annual usage. If your actual usage is lower — due to efficiency improvements, a warmer winter, or going on holiday — you will build up credit. You are entitled to request a refund of credit balances at any time.
Prepayment meters — what you need to know
Around 4 million UK households are on prepayment meters (PPMs). Since 2023, Ofgem regulations prevent suppliers charging PPM customers higher unit rates than direct debit customers.
| Aspect | Prepayment meter |
|---|---|
| Unit rates | Cannot exceed direct debit rates (Ofgem rule) |
| Standing charges | Applied as credit reduction regardless of top-up |
| Access to fixed deals | More limited — fewer suppliers offer PPM fixed tariffs |
| Switching off PPM | Supplier must agree; debt conditions may apply |
| Emergency credit | Usually £5–£10 available if you run out before topping up |
If you are on a prepayment meter and want to switch to a credit meter or a different supplier, contact your current supplier first. Ofgem guidance requires suppliers to agree to PPM removal requests unless you are in debt.
Warm Home Discount — £150 off your bill
The Warm Home Discount provides a £150 one-off reduction to your electricity bill each winter. Eligibility is automatic for most Pension Credit (Guarantee Credit) recipients. Broader eligibility includes low-income households — Ofgem and DWP match data to identify eligible households, and suppliers write to those who qualify.
You do not need to apply if you receive Pension Credit — the discount is applied automatically. Others in low-income households should check eligibility via their energy supplier from October each year.
What to do if you cannot pay your bill
If you are struggling to pay:
- Contact your supplier immediately — suppliers are obligated to offer a debt repayment plan you can afford
- Check for the Warm Home Discount and ECO4 — you may qualify for bill reduction or free upgrades
- Ask about emergency support — most major suppliers have hardship funds
- Contact Citizens Advice — for independent guidance on your rights
- Do not ignore red notices — disconnection is a last resort but suppliers can pursue debt through the courts
Suppliers cannot disconnect vulnerable households (elderly, disabled, those with children under five) in the winter months.
Cluster articles in this section
- Understanding Your Energy Bill
- How to Switch Energy Supplier
- Should I Fix Energy Prices Now?
- Energy Price Cap October 2026
- Energy Price Cap January 2027
- Average Energy Bill UK 2026
- Why Is My Energy Bill So High?
- Prepayment Meters Explained
- Smart Meters Guide
- Standing Charge Explained
- Energy Supplier Goes Bust
- What Happens If You Can’t Pay Your Energy Bill?
- Best Energy Suppliers UK 2026
Related hubs
- Energy Efficiency Hub — insulation, heat pumps, solar panels
- Money Budgeting Hub — managing all household costs together
- Benefits Support Hub — Warm Home Discount, Cold Weather Payment eligibility