Cheapest two-year fixed energy tariff in the UK (how to find it now)

Two-year fixes can offer price certainty, but the “cheapest” depends on your region, meter type and payment method. Use this guide to compare like-for-like and get a whole-of-market quote in minutes.

  • See what drives the cheapest 2-year fixed price for your home (not generic averages)
  • Understand exit fees, standing charges and who 2-year fixes do (and don’t) suit
  • Compare options using a clear checklist and realistic UK scenarios
Get your 2-year fixed quote How we compare tariffs

Prices are estimates and vary by supplier, region, meter type and payment method. Always check unit rates, standing charges and any exit fees before switching.

Fast answer: there isn’t one single “cheapest 2-year fix” for everyone

In the UK, the cheapest two-year fixed energy tariff right now depends on your:

Region

Unit rates and standing charges vary by distribution area (e.g., London vs North Wales).

Meter type

Single-rate, Economy 7/10, smart meter tariffs and prepayment can price differently.

Payment method

Direct Debit is often cheaper than pay-on-receipt-of-bill or some prepay options.

Most useful way to think about “cheapest”: the lowest estimated annual cost for your home after checking (1) unit rates, (2) standing charges, (3) any exit fees, and (4) tariff rules (e.g., smart meter requirement).

Key takeaways (what usually makes a 2-year fix good value)

  • Low standing charge matters more than many people expect (especially for low users).
  • A “cheap” unit rate can be offset by a high standing charge—always compare both.
  • Exit fees are common on fixed deals; they reduce flexibility if prices fall.
  • Some tariffs are eligible only for certain meters (smart / Economy 7) or payment types.
  • Two-year fixes can suit households that prioritise budget certainty over flexibility.

Compare 2-year fixed tariffs for your postcode

If you want the cheapest two-year fix for your home, the quickest route is a whole-of-market comparison using your postcode and usage. We’ll show options side-by-side so you can weigh price vs flexibility.

Tip: Have a recent bill handy. If you don’t know your annual kWh, you can still start with an estimate, then refine your quote.

What you’ll get

  • Estimated annual cost based on your inputs and tariff rates
  • Clear view of unit rates and standing charges
  • Flagged exit fees and key eligibility requirements
  • Support if your situation is more complex (e.g., Economy 7, prepay)

Get your quote

Leave your details and we’ll help you compare whole-of-market tariffs. This isn’t a commitment to switch.

Start your comparison

By submitting, you confirm this is for a UK home energy comparison. We’ll use your details to provide quotes and contact you about your comparison. You can opt out at any time.

How to find the cheapest two-year fixed tariff (UK, step-by-step)

  1. Get your basics right: postcode, payment method, electricity meter type (single-rate / Economy 7), and whether you also need gas.
  2. Compare using estimated annual cost (not headline unit rate): the cheapest deal is usually the one with the lowest overall cost once you include standing charges.
  3. Check the standing charge carefully: it’s paid every day regardless of usage and varies across regions.
  4. Look for exit fees and switching rules: some two-year fixes charge per fuel if you leave early.
  5. Confirm tariff eligibility: e.g., smart meter required, online-only account management, Direct Debit required, or specific meter configuration.
  6. Sense-check against your usage pattern: Economy 7 can be cheaper only if enough electricity is used overnight.

Important: If you’re in debt with your current supplier, on a prepayment meter, or your landlord controls the supply, switching may be restricted. See the FAQs below for common UK edge cases.

2-year fixed vs 1-year fixed vs variable: what typically changes

This table helps you decide which tariff type to compare first. Exact terms vary by supplier.

Tariff type Best for Typical trade-offs What to check
2-year fixed People who want longer budget certainty and don’t plan to move soon Less flexible if prices drop; exit fees more likely Exit fees (per fuel), standing charge, move-home policy
1-year fixed People who want some certainty but may review sooner May need renewing earlier; can still have exit fees End date, renewal process, exit fees, DD requirements
Standard variable People who prioritise flexibility or expect to switch soon Rates can change (often linked to the Ofgem price cap) Current rates, how often they can change, any discounts

Decision checklist: a 2-year fix tends to suit you if…

  • You value predictable bills and are comfortable committing for longer.
  • You’re not likely to move home within the next 12–24 months.
  • You’ve compared standing charges (not just unit rates).
  • You’re happy with any account requirements (online-only, Direct Debit).
  • You’ve checked exit fees and you can live with them if circumstances change.

A 2-year fix may not suit you if…

  • You may move or change tenancy soon and want flexibility.
  • You’re switching from / to Economy 7 and your usage split is uncertain.
  • You’re on a prepayment meter and need to confirm switching eligibility first.
  • You’re actively expecting market prices to fall and want to review sooner.
  • You’re in supplier debt that could prevent switching (or requires a process first).

Two realistic scenarios (example numbers)

These scenarios show how “cheapest” can flip depending on standing charge vs unit rate. Figures below are illustrative estimates to explain the maths, not live market prices.

Scenario A: Low electricity user (flat)

Assumptions
Electricity only, single-rate. Annual use: 1,800 kWh. Region and VAT ignored for simplicity.
Tariff 1 (low unit rate, high standing charge)
Unit: 23p/kWh. Standing: 70p/day.
Tariff 2 (higher unit rate, lower standing charge)
Unit: 26p/kWh. Standing: 40p/day.
Estimated annual cost
Tariff 1: (1,800×£0.23) + (365×£0.70) ≈ £670
Tariff 2: (1,800×£0.26) + (365×£0.40) ≈ £614

Outcome: for low usage, the lower standing charge can win even with a higher unit rate.

Scenario B: Higher user (family home, dual fuel)

Assumptions
Dual fuel. Electricity: 3,600 kWh. Gas: 12,000 kWh. Exit fees ignored.
Tariff 1 (lower unit rates, average standing charges)
Elec: 24p/kWh + 55p/day. Gas: 6p/kWh + 32p/day.
Tariff 2 (slightly higher unit rates, lower standing charges)
Elec: 25.5p/kWh + 42p/day. Gas: 6.4p/kWh + 25p/day.
Estimated annual cost
Tariff 1: Elec ≈ £1,168 + Gas ≈ £837 = £2,005
Tariff 2: Elec ≈ £1,110 + Gas ≈ £860 = £1,970

Outcome: even at higher usage, a meaningful standing charge difference can still matter—so compare totals, not one line item.

Reality check: Your quote will include VAT, your regional rates, and your exact meter setup. These examples are purely to illustrate how the “cheapest” tariff can change with usage and standing charge.

Costs, exclusions and common pitfalls (2-year fixes)

Before choosing the cheapest-looking two-year fixed tariff, run through these UK-specific checks. Most “bad surprises” are avoidable.

1) Exit fees (often per fuel)

Fixed tariffs commonly charge an exit fee if you leave before the end date. If you have gas and electricity on the same tariff, fees can apply to each fuel. Consider how likely you are to move or switch early.

2) Standing charges can outweigh unit rates

A low unit rate can look great in isolation, but if the standing charge is high, the overall annual cost may be higher—especially for smaller homes and low usage.

3) Economy 7 and “cheap overnight” claims

Economy 7 can be cheaper only if you use enough electricity overnight (typical for storage heaters and timed hot water). If most of your use is daytime, a single-rate tariff may be cheaper even if the night rate is attractive.

4) Smart meter requirements

Some tariffs require a working smart meter (or ongoing smart readings). If your meter isn’t communicating, you may be moved to manual reads or a different tariff—check the supplier’s terms.

5) Direct Debit vs pay on receipt

Many fixed tariffs assume monthly Direct Debit and can be priced higher for other payment methods. When comparing, make sure the payment type matches how you’ll actually pay.

6) “New customer only” or online-only conditions

Some deals are limited to new customers, online account management, or e-billing. If you prefer paper bills or need extra support, consider whether the cheapest tariff is still the best fit.

Moving home: suppliers may let you transfer your fixed tariff, but it depends on their rules and whether they supply your new address. If moving is likely, check this before committing to a 2-year fix.

FAQs: cheapest two-year fixed energy tariffs (UK)

Is a two-year fixed tariff always cheaper than variable in the UK?

No. A fixed tariff trades flexibility for price certainty. Depending on market conditions, a standard variable tariff (often influenced by the Ofgem price cap) can be cheaper or more expensive than a 2-year fix. Always compare estimated annual costs for your postcode and usage.

Do two-year fixes usually include exit fees?

Often, yes. Exit fees vary by supplier and can apply per fuel (gas and electricity). If you might move home or want the option to switch quickly, factor exit fees into your decision.

What’s the best way to compare “cheap” tariffs: unit rate or standing charge?

Use both—then confirm the estimated annual cost. Standing charges can be the deciding factor for low users. Unit rates often matter more for high users, but standing charges still add up over 365 days.

Can I switch to a 2-year fixed tariff if I have a prepayment meter?

Sometimes, but not always. Eligibility depends on the supplier, whether the meter is smart prepay, and whether there’s debt on the meter. If you’re on prepay, compare tariffs specifically available to your meter type and confirm any switching restrictions first.

I’m in a rented property—can I switch to the cheapest 2-year fix?

In most cases, yes—if you pay the energy bills and the supplier is in your name. You usually don’t need landlord permission to change supplier, but you should not remove or change the meter without permission. If bills are included in rent, you can’t switch because you’re not the account holder.

Will a two-year fixed tariff protect me from all price rises?

It fixes the unit rate and standing charge for the fixed period (subject to the supplier’s terms). It doesn’t freeze your bill if your usage increases, and it may not cover non-tariff changes (for example, if you lose a discount because eligibility changes). Always read the tariff information label and contract summary.

What happens when my 2-year fixed deal ends?

Suppliers typically move customers onto a standard variable tariff if you don’t choose a new deal. It’s wise to set a reminder to compare options before the end date. Some suppliers contact you in advance with renewal choices.

Are dual fuel tariffs always cheaper than splitting gas and electricity?

Not always. Some suppliers offer dual fuel discounts; others don’t. The cheapest setup can be one supplier for both fuels or different suppliers for gas and electricity. The only reliable method is comparing the total estimated annual cost for each option.

Trust, methodology and sources

Reviewed by: Energy Specialist

Last updated: April 2026

How we assess “cheapest two-year fixed tariff”

We do not present a single blanket “cheapest tariff” because UK energy pricing varies by household. Instead, this guide explains how to identify the cheapest option for your circumstances using a consistent, transparent approach.

Our comparison principles

  • Like-for-like inputs: same postcode region, meter type, payment method, and (where possible) the same usage assumptions.
  • Total cost focus: estimated annual cost based on unit rates + standing charges (including VAT where the supplier provides it).
  • Terms matter: we flag exit fees, eligibility restrictions (smart meter / online-only / Direct Debit), and end-date behaviour (what you might be moved onto).
  • Plain-English caveats: we explain where “cheap” can be misleading (e.g., high standing charges, Economy 7 suitability).

Limitations (what can change the result)

  • Regional pricing: electricity and gas rates vary across Great Britain by distribution area.
  • Market movement: tariffs can be withdrawn or repriced quickly; “cheapest” is time-sensitive.
  • Meter configuration: Economy 7/10 and smart tariff eligibility can materially change available deals.
  • Personal circumstances: debt, tenancy arrangements, or account holder status can limit switching.

Sources (UK)

EnergyPlus is a comparison service. We aim to be accurate and up to date, but suppliers control final pricing and eligibility. Always check the supplier’s tariff information and contract summary before you switch.

Ready to see the cheapest 2-year fixed options for your home?

Compare whole-of-market tariffs using your postcode and usage. We’ll help you spot exit fees, standing charges and eligibility before you decide.

Get your energy quote Review the 2-year checklist

Back to Guides & FAQs



Updated on 15 Apr 2026