Cheapest Warm Home Discount tariff (UK): how to find it

Warm Home Discount (WHD) is a £150 bill rebate — not a special tariff. The “cheapest WHD tariff” is simply the cheapest energy deal you can get from a supplier that participates, that also works for your payment method and meter type.

  • See which suppliers can give WHD and what to check before switching
  • Compare deals across the market using your postcode, meter and payment details
  • Get a quote with a clear view of estimated costs, unit rates and standing charges
Get my energy quote How WHD works

WHD eligibility and supplier participation can change by scheme year. Estimates shown are examples and depend on tariff, region and meter type.

Fast answer: there isn’t a “WHD tariff” — here’s what to look for

Warm Home Discount is a government scheme that provides a £150 credit to eligible households (paid by participating suppliers). Suppliers don’t typically label a tariff as “Warm Home Discount tariff”.

1) Confirm the supplier participates

Not every supplier is in the scheme every year. Participation can change, and rules differ in England & Wales vs Scotland.

2) Compare the real price you’ll pay

Check unit rates, standing charges, and whether the deal suits your meter (credit / prepay / smart / Economy 7).

3) Avoid switching mistakes

If you switch at the wrong time or to a non-participating supplier, you may miss a rebate for that scheme year.

Key takeaway: The “cheapest WHD tariff” is the cheapest suitable tariff you can get from a WHD-participating supplier, once you’ve matched the meter type, payment method, and any exit fees.

Compare deals (and keep WHD in mind)

Use the form to get whole-of-market home energy quotes. We’ll show estimated costs based on your details, so you can shortlist suppliers and then confirm WHD participation and eligibility before you switch.

What you’ll need

  • Your postcode (sets regional price cap rates)
  • Payment type (Direct Debit, cash/cheque, prepay)
  • Meter type (single-rate, Economy 7, smart meter)
  • If possible: rough annual use in kWh (or last bill)

WHD checks to do before you switch

  • Is the supplier participating in WHD for the current scheme year?
  • Are you likely to qualify in your nation (England/Wales or Scotland rules)?
  • Will the account be in the eligible person’s name?
  • Will you still be with that supplier when WHD is paid?
Important: A supplier offering WHD doesn’t guarantee you’ll receive it. Eligibility depends on your circumstances and scheme rules. Always check the supplier’s WHD information before switching.

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How Warm Home Discount works (and why it affects “cheapest”)

What WHD is

A £150 rebate applied to your electricity account (and sometimes gas, depending on billing setup) if you’re eligible and your supplier is part of the scheme for that year.

Who runs it

It’s a government scheme delivered by energy suppliers under rules set for each scheme year.

Eligibility differs by nation

Rules for England & Wales differ from Scotland. Some households are automatically identified; others may need to apply depending on the nation and scheme year.

Timing matters

WHD is credited during the scheme year (often winter to early spring). If you switch supplier, the rebate typically goes to the account held with the supplier that awards it.

Practical implication: A tariff that looks cheapest on unit rates may not be “best value” for you if it means leaving a supplier before WHD is credited (or moving to a supplier not in the scheme).

Compare tariffs sensibly: what “cheapest” really means

When you’re trying to keep WHD in play, “cheapest” should be based on your estimated annual cost and your ability to receive the rebate, not a headline unit rate.

What you’re comparing Why it matters for WHD What to check Good default choice
Estimated annual cost Lets you compare like-for-like across standing charges and unit rates. Is usage based on your real kWh? Is it your correct region and payment type? Choose the lowest realistic estimate from a WHD supplier.
Standing charge A high standing charge can outweigh a lower unit rate, especially on low usage. Electricity and gas standing charges (they can vary by region). Lower standing charge if you use less energy.
Meter & tariff type Wrong match can make the quote meaningless (e.g., Economy 7 on a single-rate tariff). Single-rate vs Economy 7, smart prepay vs traditional prepay. Match your current meter first; optimise later.
Exit fees / fixed term Switching again to chase WHD timing could trigger exit fees. Are fees per fuel? When do they apply? Flexible tariffs if you may need to switch again.
Supplier WHD participation If they don’t participate that year, there’s no WHD through them. Supplier’s WHD page for the current scheme year; nation-specific rules. Shortlist participating suppliers, then pick the cheapest suitable tariff.

Quick decision checklist

This approach suits you if:
You’re eligible (or likely eligible) for WHD and want the lowest estimated annual cost without risking the rebate.
It may not suit you if:
You’ll move home soon, you’re mid-way through a fixed tariff with exit fees, or you rely on a very specific meter setup that limits suppliers.

Two realistic scenarios (with numbers)

These examples show how WHD can change the “best value” decision. Figures are illustrative estimates (your rates vary by region and tariff).

  • Scenario A (dual fuel, Direct Debit): Estimated annual cost £1,720 with Supplier X (participating) vs £1,690 with Supplier Y (not participating). If eligible for WHD, Supplier X effectively becomes ~£1,570 after a £150 credit, while Supplier Y remains ~£1,690.
    Assumes: WHD credited to the account within the scheme year; no exit fees; similar billing patterns.
  • Scenario B (electricity-only, prepay): Estimated annual cost £910 with Supplier A (participating) vs £885 with Supplier B (participating). Both participate, so WHD doesn’t change the ranking: Supplier B remains cheaper, and if eligible the effective cost becomes ~£735 vs ~£760.
    Assumes: same meter type accepted; prepay rates are correctly selected; WHD applied as account credit/voucher per supplier process.
Reminder: WHD is a credit, not cash in hand. How it’s applied can vary (especially for prepay). Always check how your supplier delivers the rebate.

Costs, exclusions and common pitfalls (UK-specific)

Switching at the wrong time

If you switch supplier late in the scheme year, you may reduce the chance of receiving the credit from the old supplier (and the new supplier may not award it to you).

Tip: If you’re expecting WHD, check your current supplier’s WHD page and your account messages before switching.

Assuming all suppliers participate

Participation can change by year and supplier. A tariff can still be “cheap” but not help if WHD is essential to your budget.

Tip: Confirm WHD participation for the current scheme year before you start a switch.

Meter and payment mismatches

Prepay, smart prepay and Economy 7 can have different prices and limited availability. Choosing the wrong type can make “cheapest” comparisons unreliable.

Tip: Match your current meter first; then consider changes after you’ve switched.

Exit fees on fixed tariffs

A cheaper WHD-participating deal may not be cheaper once you include exit fees from your current contract.

Tip: Check your current tariff end date and any fees (often shown in your online account or contract summary).

Household changes and account name

Eligibility checks may be tied to the person named on the bill and their circumstances. If the eligible person isn’t the account holder, it can cause delays or ineligibility.

Tip: Keep the electricity account in the name of the eligible person where possible.

Thinking WHD replaces other help

WHD is separate from other support (for example Winter Fuel Payment or Cold Weather Payment). Rules and payments differ.

Tip: If you’re struggling, check Citizens Advice energy support for additional options.

If you’re in arrears: You can still compare, but speak to your supplier before switching. Debt handling and repayment plans may be affected by a switch, especially on prepayment meters.

FAQs

Is there a specific “Warm Home Discount tariff”?

Usually, no. WHD is a scheme benefit (a £150 credit) delivered by participating suppliers. You typically choose a normal tariff, then WHD is applied if you’re eligible and meet the supplier’s scheme-year rules.

How do I find the cheapest tariff from a WHD supplier?

First, compare tariffs by estimated annual cost for your postcode, meter and payment method. Then shortlist suppliers and check their WHD participation for the current scheme year. The cheapest WHD-compatible option is usually the lowest estimated cost among those participating suppliers that can take you on.

Can I get WHD if I switch supplier?

Possibly, but timing and scheme-year rules matter. In general, WHD is awarded by a supplier during the scheme year, and you may need to be their customer at the point they apply the credit. If you’re expecting WHD, double-check before you switch.

Does WHD apply to gas or electricity?

WHD is usually applied to your electricity account. If you have dual fuel with the same supplier, they may reflect the credit across your overall account balance. Check your supplier’s WHD guidance and how they apply the credit on your bill.

I’m on a prepayment meter — can I still get WHD?

Yes, many eligible prepay customers can receive WHD, but the delivery method may differ (for example, a voucher, top-up, or credit applied to the meter/account). Always confirm your supplier’s process and timescales for prepay customers.

Do standing charges matter if I’m getting £150 off?

They still matter a lot. The rebate is a fixed £150 credit, but standing charges accrue every day. If you use relatively little energy, a tariff with a lower standing charge can be cheaper overall even if its unit rate is slightly higher.

Does my region affect what’s cheapest?

Yes. Unit rates and standing charges vary by region (and by payment type). That’s why a postcode-based comparison is important when you’re looking for the cheapest option.

Can a fixed tariff stop me receiving WHD?

Being on a fixed tariff doesn’t automatically prevent WHD. The key factors are your eligibility, the supplier’s participation, and scheme-year rules. However, fixed tariffs may include exit fees, which can make switching (or timing a switch around WHD) more costly.

Trust, methodology and sources

Page governance

How we assess “cheapest Warm Home Discount tariff”

Because WHD is not a tariff, our approach is to identify the lowest estimated annual cost tariffs that are realistically available to a household, then layer in WHD considerations as a constraint:

  1. Quote basis: Postcode/region, payment method, and meter type (these materially affect prices).
  2. Cost comparison: Use estimated annual cost built from unit rates + standing charges. We do not rank by unit rate alone.
  3. WHD filter: Check whether a supplier participates in WHD for the relevant scheme year (participation can change).
  4. Suitability checks: Consider exit fees, contract length, and whether the tariff fits the household’s setup (e.g., Economy 7).
Limitations: Prices change, availability can differ by customer profile and meter compatibility, and WHD eligibility is not something a comparison can guarantee. Always confirm WHD and tariff details with the supplier before completing a switch.

Sources (UK)

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Updated on 15 May 2026