Cheapest two-year fixed energy deal in the UK (what to check today)
See how to find the cheapest 2-year fixed tariff for your home right now, what “cheap” really means for your postcode and meter, and how to compare safely.
- Whole-of-market comparison: prices vary by region, meter type and payment method
- Clear checklist for who a 24‑month fix suits (and who it doesn’t)
- Two realistic cost scenarios with assumptions, plus common pitfalls to avoid
Prices change frequently. Any “cheapest” result depends on your postcode, usage, meter type and payment method. We show estimated costs and explain the assumptions below.
Fast answer: what is the cheapest 2‑year fixed deal in the UK right now?
There isn’t one single “cheapest two‑year fixed energy deal” that’s cheapest for everyone in the UK. The cheapest 24‑month fix for your home depends on:
- Your region (prices are set by regional cost areas)
- Meter type (single-rate, Economy 7, smart/legacy prepay)
- Payment method (monthly Direct Debit, cash/cheque, prepayment)
- How much energy you use (kWh/year for gas and electricity)
- Tariff structure (unit rates + standing charges, and any discounts/fees)
What you can do today: run a whole‑of‑market quote using your postcode and (ideally) your annual kWh from a recent bill. That’s the most reliable way to identify the cheapest 2‑year fix available to you right now.
Key takeaways (read this before you fix for 2 years)
- “Cheapest” can flip based on standing charges
- A tariff with lower unit rates isn’t always cheaper overall if standing charges are higher for your region and usage.
- Exit fees matter on a 24‑month fix
- If you move, change plans, or prices fall, you could pay a fee to leave early (check per‑fuel fees for gas and electricity).
- Eligibility can rule out the “headline cheapest”
- Some tariffs are for smart meters only, certain payment types, or existing customers. Your quote should filter to deals you can actually switch to.
Compare two‑year fixed deals (whole of market)
Use the form to get a tailored shortlist of 24‑month fixed tariffs for your home. We’ll show estimated annual cost using the details you provide and highlight key terms (including exit fees).
Tip for accuracy: If you can, use your annual usage from your bill (kWh). If you don’t have it, start with your postcode and we’ll estimate based on typical profiles—then you can refine later.
How 2‑year fixed tariffs work (in plain English)
- Fixed unit rates & standing charges for the contract term (usually 24 months). Your bill still changes with your usage.
- Credit checks aren’t typical for standard domestic switching, but suppliers may run eligibility checks and may require Direct Debit for certain tariffs.
- Cooling-off period: you usually get 14 days after agreeing to switch to change your mind (check supplier terms).
- Exit fees: common on fixed deals. Some suppliers waive fees if you’re moving home, but not all.
- Smart meters & Economy 7: your meter setup can affect which tariffs you can join and whether day/night rates apply.
Get your quote
Enter your details and we’ll match you with suitable two‑year fixed tariffs. Fields marked required help us show accurate eligibility and pricing.
What you’ll see next: estimated annual cost, unit rates, standing charges, contract length, exit fees, and whether the tariff requires Direct Debit, a smart meter, or other conditions.
Two‑year fixed vs 1‑year fixed vs variable: which is “cheapest” long term?
A 24‑month fix can be the cheapest for you if it balances price and risk. The table below shows the trade-offs to check before you commit.
| Option | What you lock in | Typical pros | Typical watch-outs | Best for |
|---|---|---|---|---|
| 2‑year fixed | Unit rates + standing charges for ~24 months | Budget certainty for longer; protects if market prices rise | Exit fees can be higher; could miss out if prices fall; may have eligibility rules | Households wanting stability and planning to stay put |
| 1‑year fixed | Unit rates + standing charges for ~12 months | Balance of certainty and flexibility; often lower exit fees than 2‑year | Need to review sooner; still may have exit fees | People who want to re-shop annually |
| Variable (incl. SVT) | Prices can change (often tied to market movements; SVT is typically influenced by the Ofgem price cap) | Usually no exit fees; easiest to leave at any time | Less bill certainty; rates can go up; can be expensive versus fixes at the right time | Short-term flexibility or people likely to move soon |
Decision checklist: who a 2‑year fix suits (and who it doesn’t)
A 2‑year fixed may suit you if…
- You prefer predictable pricing over chasing the lowest possible rate.
- You expect to stay in your property for the next 18–24 months.
- You’ve checked exit fees and you’re comfortable with them.
- Your household budget would struggle if rates rose on a variable tariff.
- You can meet any tariff conditions (e.g., Direct Debit or smart meter).
Consider alternatives if…
- You’re likely to move home or change circumstances soon.
- You want the freedom to switch quickly if prices fall.
- You’re on prepayment and the available fixes are limited or not competitive in your region.
- You have Economy 7 but your night usage is low (a single-rate tariff may be cheaper).
- The “cheap” deal relies on assumptions that don’t match your real usage.
Two realistic cost scenarios (with numbers)
These examples show how to compare tariffs. They are illustrative and not a promise of what you’ll pay. Actual prices vary by region, supplier, meter and payment method.
Scenario A: Typical dual-fuel household (Direct Debit)
- Electricity usage: 2,900 kWh/year
- Gas usage: 12,000 kWh/year
- Assumed tariff terms: 24‑month fix, Direct Debit, single-rate electricity
- Example rates (illustrative): Elec 24p/kWh + 55p/day; Gas 6p/kWh + 32p/day
| Component | Estimated annual cost |
|---|---|
| Electricity (usage) | 2,900 × £0.24 = £696 |
| Electricity (standing) | 365 × £0.55 = £201 |
| Gas (usage) | 12,000 × £0.06 = £720 |
| Gas (standing) | 365 × £0.32 = £117 |
| Estimated annual total | £1,734 (about £145/month) |
If exit fees are £75 per fuel, leaving early could cost £150 (illustrative; check your tariff).
Scenario B: Electricity-only flat (single-rate)
- Electricity usage: 1,800 kWh/year
- No gas supply
- Assumed tariff terms: 24‑month fix, Direct Debit
- Example rates (illustrative): Elec 25p/kWh + 60p/day
| Component | Estimated annual cost |
|---|---|
| Electricity (usage) | 1,800 × £0.25 = £450 |
| Electricity (standing) | 365 × £0.60 = £219 |
| Estimated annual total | £669 (about £56/month) |
Why standing charges matter: In low‑usage homes, the daily standing charge can form a large share of the bill. “Cheapest” often means a good balance between unit rate and standing charge for your usage.
Costs, exclusions and common pitfalls (2‑year fixes)
Two‑year fixed tariffs can be good value, but they’re also where small print can cost you. Here are the main items to check before you switch.
1) Exit fees (per fuel)
Many 24‑month fixes charge exit fees if you leave early. Check fees for electricity and gas separately, and whether they’re waived when moving home.
2) Meter & payment eligibility
Some deals are Direct Debit only, smart‑meter only, or not available for prepay. If you have Economy 7, confirm the tariff supports it (or that you can switch to single-rate).
3) Standing charges can dominate
If your home uses less energy (small flat, daytime out, efficient heating), a tariff with a slightly higher unit rate but lower standing charge can be cheaper overall.
4) Estimated bills vs your real usage
Comparison results are only as good as the inputs. If you don’t know your annual kWh, treat the result as a starting estimate and refine once you find your bill data.
5) Discounted bundles and add-ons
Be cautious with extras (e.g., boiler cover) bundled into your monthly cost. Make sure you’re comparing energy costs like‑for‑like.
6) Tenants and bills included
If your rent includes bills, you usually can’t switch. If you pay the supplier directly, you can normally switch—just check your tenancy agreement and get permission if needed.
Quick safety check: Before switching, read the tariff’s key terms: contract length, unit rates, standing charges, exit fees, payment method requirements, and any smart‑meter/Economy 7 restrictions.
FAQs: cheapest two‑year fixed energy deal (UK)
Are two‑year fixed tariffs always cheaper than variable?
Not always. A 2‑year fix can be cheaper if the fixed rates are competitive at the point you switch. Variable tariffs can be cheaper at times, but they can also rise. Compare using your postcode and usage, and consider the value of price certainty.
Will I pay exit fees if I leave a 2‑year fix early?
Often, yes. Exit fees vary by supplier and can apply per fuel (gas and electricity). Some suppliers waive fees if you’re moving home, but you should confirm this in the tariff terms before you switch.
Does the cheapest deal depend on my region?
Yes. UK energy pricing differs across regional networks, so a tariff that looks cheapest in one area may not be cheapest elsewhere. That’s why postcode is essential for an accurate comparison.
Can I get a two‑year fix if I have a prepayment meter?
Sometimes, but options may be more limited and pricing can differ. If you have smart prepay, more tariffs may be available than with legacy key/card meters. The best approach is to compare with your meter type selected.
I’m on Economy 7—should I choose a 2‑year fixed Economy 7 tariff?
Only if you genuinely use a meaningful share of electricity overnight (for example, storage heating or charging). If most of your usage is daytime, a single-rate tariff can be cheaper. Compare both options using your real day/night split if you have it.
Do fixed tariffs protect me from the Ofgem price cap changes?
A fixed tariff sets your unit rates and standing charges for the fixed term, so those prices generally won’t change when the price cap level changes. However, your total bill can still change with usage, and you should check the tariff terms for any permitted adjustments.
How long does switching take in the UK?
Switching is usually completed within a few working days for many customers, but timings can vary (for example, due to meter details, objections related to debt, or supplier processes). You won’t be cut off during a normal switch.
What information do I need to find the cheapest 2‑year fix?
Postcode, payment method, meter type, and ideally annual usage in kWh for gas and electricity. If you don’t know your usage, start with postcode and refine your results once you find a recent bill.
Trust, methodology and sources
Page accountability
- Written by
- EnergyPlus Editorial Team
- Reviewed by
- Energy Specialist (UK domestic supply)
- Last updated
- April 2026
How we assess “cheapest two‑year fixed deal”
Because tariffs and eligibility vary, we don’t publish a single blanket “cheapest deal”. Instead, we help you identify the cheapest available two‑year fix for your household by comparing estimated total cost and key terms.
- Primary measure: estimated annual cost = (electricity unit rate × annual electricity kWh) + (electricity standing charge × 365) + (gas unit rate × annual gas kWh) + (gas standing charge × 365).
- Sorting & presentation: we prioritise overall estimated cost and clearly surface key terms (contract length, exit fees, payment method, meter requirements).
- Inputs that change results: postcode (regional pricing), meter type (single-rate/E7/prepay), and payment method (e.g., Direct Debit).
- Limitations: estimates can differ from your bills if your usage is unusual, your meter setup is complex (e.g., multi-rate), you have debt/objections, or supplier prices change before you complete switching.
- Not financial advice: we provide comparison information to help you choose; you should read the tariff information before agreeing to switch.
Transparency: We use the information you enter to calculate estimates. If you don’t supply annual kWh, your quote may use typical consumption assumptions and should be treated as indicative until you confirm your real usage.
Reputable UK sources we reference
- Ofgem (Great Britain energy regulator) – guidance on tariffs, switching and consumer protections.
- Citizens Advice: Energy – practical help on bills, switching, meters and complaints.
- GOV.UK: Help with energy bills – government support information and eligibility where applicable.
Ready to check the cheapest 2‑year fixed deal for your postcode?
Compare whole-of-market two‑year fixed tariffs with clear terms, estimated costs and eligibility checks—then decide with confidence.
Reminder: “Cheapest” depends on region, meter and usage. Always review unit rates, standing charges and exit fees before switching.
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