What is the cheapest electricity and gas tariff in the UK right now?

Prices change frequently by region and usage. The cheapest deal for you depends on your annual kWh consumption, postcode, meter type and payment method. Compare unit rates (p/kWh), standing charges and any exit fees using your actual usage for the most accurate result.

Are fixed-rate tariffs cheaper than variable tariffs?

Fixed-rate tariffs lock your unit rates and standing charges for a set term (e.g., 12 months), protecting you from rises but not from overpaying if prices fall. Variable tariffs can go up or down and default tariffs are subject to Ofgem’s Energy Price Cap. The best choice depends on your risk tolerance and market outlook.

How do I switch to a cheaper dual fuel tariff?

Have a recent bill to hand, including your postcode and annual kWh usage for electricity and gas. Get quotes, select a tariff and complete the online application. Most switches in Great Britain complete in around 5 working days with no interruption to supply. You’ll receive a final bill from your old supplier and there is a 14-day cooling-off period.

Will I pay exit fees if I leave my current tariff early?

Exit fees usually apply only on fixed-term deals and vary by supplier and tariff. They typically don’t apply in the last 49 days of your fixed term under Ofgem rules, and they don’t apply to standard variable tariffs. Always check your contract or latest bill for exact fees.

How do standing charges affect my energy bill?

The standing charge is a daily fixed amount you pay regardless of usage. It’s multiplied by the number of days in the billing period. For low-usage homes the standing charge can make up a larger share of the bill, while high-usage homes are more affected by unit rates. Compare both when choosing a tariff.

Do I need a smart meter to get the cheapest tariff?

Not always. Some deals require a smart meter, while many do not. Smart meters enable accurate bills and time-of-use or off-peak tariffs that can be cheaper if you can shift consumption. If you have a smart meter, ensure it’s sending readings in smart mode to access smart-only tariffs.

What is the Ofgem Energy Price Cap and how does it affect my bill?

The price cap limits the maximum unit rates and standing charges suppliers can charge customers on default standard variable tariffs in Great Britain. It is reviewed quarterly. It is not a cap on your total annual bill—your cost depends on how much energy you use and your region.

How can I get the most accurate comparison to find the cheapest tariff?

Use your actual annual consumption in kWh from a recent bill (not just monthly spend), select your correct meter type (single-rate, Economy 7, smart), payment method and postcode. Decide whether you want fixed or variable rates, consider exit fees and whether a renewable electricity tariff matters to you.

Will my energy supply be interrupted when I switch?

No. Your gas and electricity are delivered through the same pipes and wires, regardless of supplier. Switching changes your tariff and who bills you, not your physical supply. You’ll provide opening and closing meter readings to ensure accurate final and first bills.

Can I get a cheaper tariff if I’m on prepayment?

Prepayment tariffs can be more expensive than paying by monthly Direct Debit, but competitive options exist. Smart prepayment often unlocks more deals and features. You may be able to switch to a credit meter subject to eligibility and a credit check; ask your supplier for options and any costs.

Cheapest Electricity and Gas Tariffs in the UK

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Find the Cheapest Energy Deals Near You

Energy prices move frequently. The cheapest electricity and gas tariff for your home depends on your postcode, meter type, and how much energy you use. We make it simple to compare live unit rates (pence per kWh) and standing charges from leading UK suppliers, then switch online in a few clicks.

Whether you’re after the lowest fixed-rate deal for price certainty or a flexible variable tariff that tracks the market, we’ll help you find the right plan at a great price.

How to Get the Cheapest Tariff

Enter your postcode so we can show prices for your region.
Add your annual usage in kWh (or spend in £) for electricity and/or gas.
Choose your meter type (standard, Smart, Economy 7, prepayment, etc.).
Compare unit rates, standing charges, total estimated cost and exit fees.
Pick a tariff and switch online. No engineer visit, no supply interruption.

Tariff Types Explained

Understanding tariff types helps you decide which is truly cheapest for your usage pattern.

Tariff type	What it means	When it’s cheapest	Things to check
Fixed-rate	Your unit rates and standing charge are fixed for 12–24 months.	When you want price certainty and rates look competitive versus forecasts.	Exit fees for leaving early; renewal options at end of term.
Variable (SVT)	Rates can change, often influenced by wholesale prices and the Ofgem price cap.	If you want flexibility and no/low exit fees.	Rates can rise as well as fall; not all suppliers mirror the cap exactly.
Dual fuel	Gas and electricity from the same supplier.	When a dual fuel discount makes the combined cost lowest.	Compare against single-fuel deals—cheapest isn’t always dual.
Economy 7/10	Cheaper night rates, higher day rates for homes with storage heating or EVs.	If you can shift significant usage to off-peak hours.	Day rates can be high; ensure night/day split fits your lifestyle.
Time-of-use/EV	Smart tariffs with very low overnight prices for charging EVs and appliances.	When you have a smart meter and can automate usage overnight.	Smart meter required; prices vary by time band.
Prepayment	Pay-as-you-go via key/card or smart top-up.	When budgeting weekly is critical.	Historically pricier; check latest rates and any support schemes.
Green/Renewable	Backed by renewable generation or certificates.	When you want low prices and a lower carbon footprint.	Look for clear green credentials and competitive costs.

What Makes a Tariff Cheapest?

Unit rate (p/kWh): The price for each unit of electricity or gas you use. Lower is better if your usage is high.
Standing charge (p/day): A daily fee that applies regardless of use. Matters more for low-usage homes.
Exit fees: Some fixed tariffs charge a fee if you leave early.
Discounts and rewards: Dual fuel, direct debit, online billing, or smart meter discounts can reduce your total cost.
Regional pricing: Network costs vary by distribution region, so the lowest tariff depends on your postcode.

About the Ofgem Energy Price Cap

The Ofgem energy price cap sets maximum average unit rates and standing charges that suppliers can charge customers on standard variable tariffs. The cap is reviewed quarterly. It is not a cap on your total bill—your bill still depends on how much energy you use. Fixed tariffs and some special tariffs can be priced differently, so it’s worth comparing.

Dual Fuel vs Single Fuel

Dual fuel can be convenient and sometimes cheaper due to discounts, but the absolute cheapest combination for you could be separate suppliers for gas and electricity. Our comparison shows the lowest total cost either way so you can pick the best option.

Smart Meters and Time-of-Use Savings

Smart meters unlock advanced tariffs, including EV and time-of-use plans with cheaper overnight prices. If you can shift laundry, dishwashing, water heating or EV charging to off-peak windows, these tariffs can beat standard fixed or variable deals for many households.

Economy 7 and Night Storage Heating

Economy 7 and Economy 10 tariffs provide off-peak night rates. They suit homes with storage heaters or hot-water tanks. Check your day/night split and ensure the off-peak window aligns with your routine; otherwise, a single-rate tariff may be cheaper overall.

Prepayment Meters

Prepayment tariffs are pay-as-you-go and can help with budgeting. While historically more expensive, options evolve regularly. If you’re on prepay, compare often—switching to a credit meter (subject to eligibility) or to a smart prepay tariff can reduce costs.

Green Energy Tariffs

Many green tariffs now compete closely on price with standard deals. If you want the cheapest tariff with a lower carbon footprint, look for plans backed by UK renewable generation, clear matching policies, and competitive unit rates.

Business Energy

Microbusiness and SME tariffs are priced differently from domestic deals and often require a bespoke quote. If you run a small business, comparing contracts before your renewal window closes can produce significant savings.

Why Compare with Us?

We show the latest prices from leading UK suppliers.
Clear breakdowns of unit rates, standing charges, and estimated annual costs.
Filter by fixed, variable, dual fuel, green, EV, Economy 7, and more.
Online switching in minutes—no engineer visit, no paperwork hassle.
Guidance on exit fees, credit checks and eligibility to avoid surprises.

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Frequently Asked Questions

How often do the cheapest tariffs change?

Tariffs can change at any time, and standard variable rates are reviewed regularly—often in line with the Ofgem price cap schedule. It’s worth running a comparison whenever your fixed deal ends or if you haven’t checked prices in a few months.

Will my energy supply be interrupted if I switch?

No. Switching is a regulated, seamless process. Your gas and electricity stay on throughout; only your supplier and tariff change.

How long does switching take?

Most domestic switches complete within 5 working days under the Energy Switch Guarantee, though some tariffs or meter types may take a little longer. You’ll receive confirmation and a go-live date from your new supplier.

What information do I need to compare?

Your postcode, meter type, and recent usage in kWh (or your monthly/annual spend). A recent bill is ideal. If you don’t know your usage, we can estimate based on your home profile.

Are prepayment tariffs the cheapest?

Not usually, though it depends on current offers and regional rates. If budgeting flexibility is key, smart prepay options might help. Otherwise, a credit meter with direct debit often unlocks lower prices.

Should I choose a fixed or variable tariff?

If you prefer price certainty, a competitive fixed deal can protect against rises. If you value flexibility and expect prices to fall, a variable tariff with low or no exit fees may suit. Compare both and weigh exit fees against potential savings.

What happens if my supplier fails?

Ofgem’s Supplier of Last Resort process moves you to a new supplier automatically. Your energy keeps flowing, and your credit balance is protected in most cases. You can then compare and switch if you wish.

What is the standing charge and why is it important?

The standing charge is a daily fee that covers the cost of supplying energy to your home. Low users should pay close attention to it, as a higher standing charge can offset savings from a low unit rate.

Can I get support if I’m struggling with bills?

You may be eligible for schemes such as the Warm Home Discount, Priority Services Register support, or supplier-specific hardship funds. Contact your supplier and review UK government guidance for the latest criteria.

Compare the Cheapest Gas and Electricity Tariffs Today

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Important Information

We are not an energy supplier. Comparisons are based on information you provide and publicly available or partner-supplied tariff data. The cheapest tariff for you depends on your usage, meter type, and postcode. Prices and availability can change; always check the tariff terms, including exit fees and payment method requirements. The Ofgem price cap applies to standard variable tariffs for typical usage but is not a cap on your total bill.

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Updated on 18 Nov 2025