What is a fixed energy tariff (and why choose one in the UK)?

A fixed energy tariff locks in your unit rate and standing charge for a set period (e.g., 12–24 months), helping you budget and reduce exposure to price changes. Many UK households choose fixed tariffs for stability and predictable bills.

What is a switching bonus and how does it work?

A switching bonus is an incentive offered when you move your gas and/or electricity supply to a new tariff or supplier. It may be applied as a bill credit or paid after your switch completes, subject to eligibility and terms.

Am I eligible for a switching bonus on a fixed tariff?

Eligibility depends on the specific tariff terms, your property and meter type, and whether you are switching as a new customer. Some offers apply only to dual-fuel switches or exclude customers who have recently held an account with the same supplier.

Can I switch if I have an EV charger at home?

Yes. Having a home EV charger does not stop you switching energy tariffs. If you charge at home, you may benefit from comparing tariffs carefully—especially if you can shift charging to off-peak times where available.

Will switching energy supplier interrupt my electricity or EV charging?

No. Switching supplier is an administrative change and your electricity supply continues as normal, so your EV charger and home power should not be interrupted.

How long does it take to switch to a fixed tariff in the UK?

Most switches complete within a few working days, though timings can vary depending on your current supplier, meter setup, and any account checks required. You will be informed of key dates during the process.

Do fixed tariffs come with exit fees?

Many fixed tariffs include an exit fee if you leave before the contract end date, but this is not always the case. Always check the tariff details before switching so you understand any early termination charges.

Is it better to switch gas and electricity together (dual fuel)?

Switching both fuels together can be simpler to manage and may unlock additional discounts or bonuses on some deals. However, the best option depends on your current rates and usage—compare total annual costs rather than focusing only on bonuses.

What information do I need to switch and claim a switching bonus?

Typically you’ll need your address, current supplier details, and payment information (e.g., Direct Debit). Supplying a recent meter reading can help ensure an accurate final bill. For bonus eligibility, you may also need to meet specific sign-up requirements in the tariff terms.

How can I find fixed energy tariffs with a switching bonus through EnergyPlus?

Use the guidance on this page to compare fixed tariff options and identify deals that include a switching bonus, then follow the next steps to start your switch. For related EV charging options, visit https://www.energyplus.co.uk/ev-charger/.

Fixed energy tariffs with switching bonus UK

Compare whole-of-market fixed tariffs and switching bonus deals for your home. See what you could pay, check exit fees, and switch in minutes with EnergyPlus.co.uk.

Whole-of-market comparison across UK suppliers
Filter by fixed term, unit rates, standing charge and switch incentives
Clear view of exit fees, payment methods and estimated annual cost
Free to use — one form to check your options

Compare fixed tariffs & bonuses How switching works

Switching bonuses vary by supplier and eligibility. We’ll show the full tariff details before you decide. Home energy only (not business).

Compare fixed tariffs with switching bonuses — whole-of-market

A fixed energy tariff locks in your unit rates (p/kWh) and standing charge for a set term (often 12–24 months). Some suppliers also offer a switching bonus — for example, account credit, cashback or a gift card — when you move your home gas and/or electricity supply.

EnergyPlus.co.uk helps you compare UK fixed energy deals with switch incentives across the market and understand the true cost. That means seeing the tariff details that matter: estimated annual cost, payment method, exit fees, and whether the bonus applies to your circumstances.

Tip: A bonus can be appealing, but the best value usually comes from the overall tariff cost (unit rates + standing charge) over the full fixed term. We’ll help you compare both.

What you’ll get after submitting the form

Fixed tariff options matched to your postcode and fuel type (electricity or dual fuel)
Clear view of any switching bonus and when it’s paid
Tariff length, exit fees, and estimated annual cost breakdown
Guidance on direct debit vs pay on receipt and how that affects prices

Start your comparison

Tell us a few details and we’ll show fixed tariffs and any eligible switching bonuses.

Need to stay on a fixed deal?

If you’re avoiding volatility, fixed tariffs can help with budgeting. We’ll highlight exit fees and the fix end date so you can plan your next switch.

Why choose a fixed tariff with a switching bonus?

If you’re looking for fixed energy tariffs with switching bonus offers in the UK, it usually comes down to two things: stability (knowing your rates for a set period) and value (an incentive that reduces your effective cost).

Predictable rates

Fixing your unit rates and standing charge helps you budget. You’ll know what you’re paying per kWh during the term (subject to usage).

Switch incentives

Some suppliers offer account credit, cashback or vouchers. We’ll show how and when the bonus is applied so you can compare fairly.

No supplier bias

EnergyPlus.co.uk is a comparison service — we help you review options across the market, not just a shortlist.

See exit fees upfront

Fixed tariffs often have exit fees. We flag them so you can decide whether flexibility or stability is more important.

Dual fuel or electricity-only

Compare electricity-only, gas-only, or dual fuel options depending on your home and meter setup.

Transparent total cost

We focus on estimated annual cost rather than headline bonuses, so you can judge the deal over the full fixed term.

How switching to a fixed tariff works (UK homes)

Switching energy supplier is usually straightforward. In most cases, your supply stays on, and your new supplier handles the transfer. Here’s the typical process for fixed tariffs with switching bonuses:

Share your postcode and contact details so we can match tariffs available in your area.
Review fixed tariff options (term length, rates, standing charges) and check any bonus conditions.
Choose a deal that fits your budget and preference (e.g., direct debit vs other payment methods).
Your new supplier completes the switch. You’ll typically be asked for meter readings around the switch date.
Bonus is applied according to the supplier’s terms (often after a set period, and sometimes only if payments are up to date).

Will my energy go off?

No — the physical supply remains the same. The change is who bills you and what tariff you’re on.

How long does it take?

Timescales vary. We’ll guide you on what to expect based on the supplier and your account details.

What to check on fixed tariffs with switching bonuses

Not all switching bonuses are the same. The key is to compare the deal as a whole — rates, fees and eligibility — not just the incentive.

What to compare	Why it matters	What we help you see
Unit rate (p/kWh)	This drives most of your bill and impacts savings for higher usage homes.	Side-by-side unit rates and estimated annual cost.
Standing charge	A daily fixed cost that can make a big difference for low usage households.	Displayed clearly for electricity and gas (if applicable).
Fixed term length	Longer fixes can provide stability but may reduce flexibility.	12/18/24-month options and end dates where available.
Exit fees	Leaving early can cost you — important if you may move home or switch again.	Exit fees shown upfront so you can weigh the risk.
Switching bonus type	Account credit vs cashback vs voucher can change real value and timing.	Bonus amount, form, and typical payment timeframe (where provided).
Eligibility rules	Some incentives depend on payment method, new-customer status, or meter type.	Flags on key conditions so you can avoid surprises.

A quick way to judge “bonus” value

If a tariff is £80/year more expensive but offers a £50 bonus, it may still cost you more overall. Compare estimated annual cost first, then treat the bonus as a secondary benefit.

Eligibility & common bonus conditions (UK)

Switch incentives are set by suppliers and can change. Common conditions you may see on fixed energy tariff bonus deals include:

New customer only: you may need to have not supplied with that provider for a set period.
Payment method: incentives may apply only on monthly direct debit.
Stay period: bonus may be paid after 30/60/90 days, or after your first bill.
Account status: payments may need to be up to date.
Fuel type: some offers are dual fuel only; others apply to electricity-only.

Moving home? A fixed tariff can be a good fit, but check whether your supplier allows you to transfer the tariff to your new address and whether any exit fee applies.

Common mistakes when choosing a fixed deal

Focusing on the bonus, not the tariff

A large incentive can distract from higher unit rates or standing charges. Always compare the total estimated cost over the term.

Missing exit fees

Exit fees can reduce savings if you need to leave early. We highlight them so you can decide with confidence.

Choosing the wrong payment method

Many of the cheapest fixed tariffs are priced for monthly direct debit. If you prefer another method, compare like-for-like.

FAQs: fixed energy tariffs & switching bonuses

Are switching bonuses guaranteed?

Bonuses depend on supplier terms and eligibility. Common requirements include being a new customer, paying by monthly direct debit, and remaining on supply for a minimum period.

Is it worth switching for cashback or credit?

It can be — but compare the estimated annual cost first. A slightly cheaper tariff without a bonus can still be better value overall.

Can I switch if I have a smart meter?

In many cases, yes. Availability can vary by supplier and meter setup. We’ll show tariffs available to your postcode and account type.

Will I need to contact my current supplier?

Usually not. The new supplier typically manages the switch. You may need to provide meter readings around the changeover date.

What if I’m on a fixed tariff already?

You can still compare, but check if your current tariff has an exit fee. We’ll help you factor that into the overall value.

Do you compare business energy?

This page is for home energy comparisons only. If you need business tariffs, please use the relevant EnergyPlus service page.

Why households use EnergyPlus.co.uk

When you’re comparing fixed tariffs and switching bonuses, clarity matters. Here’s what customers typically value about the process.

“The comparison was straightforward.” I could see the fixed term, exit fees and the bonus conditions before choosing.

Homeowner, England

“Helped me avoid a deal that looked good on paper.” The bonus was nice, but the rates were higher — the breakdown made it obvious.

Flat occupant, Scotland

“Quick to submit, quick to compare.” One form and I had options for fixed tariffs that matched my postcode.

Tenant, Wales

Trust indicators

Whole-of-market comparison approach
Tariff details presented clearly (rates, standing charge, term, fees)
Home energy focus — tailored to household switching

Ready to lock in a fixed tariff and check bonus deals?

Compare UK fixed energy tariffs with switching bonuses in one place. We’ll help you focus on the overall cost, not just the incentive.

Whole-of-market fixed tariffs for home energy
See bonus eligibility, timing and any exit fees
Simple form — fast comparison

Compare now

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Updated on 24 Feb 2026