EPC C by 2030: what it means for your heating choice

The short answer

The planned EPC C rule changes the heating decision less than most headlines suggest. A property that needs work will be asked to improve its fabric first, then pick one of two further routes. A heat pump is one option for that second step, a smart readiness package is the other, and the government says no landlord will be forced to replace a working heating system with a heat pump.

That is the planned rule, and it is not yet law. This page separates what applies today from what is planned, then gives the order in which a landlord should look at a rented home.

Today’s law versus the planned rule

Today, a privately rented home in England and Wales generally needs an EPC of at least E. The GOV.UK landlord guidance (updated 5 May 2026) sets the cost cap at £3,500 including VAT, most exemptions run for 5 years, and the maximum penalty is £5,000 per property in total.

The planned rule comes from the government response published on 21 January 2026. It has not been turned into regulations yet.

	Today (in force)	Planned (not yet law)
Minimum standard	EPC E	EPC C equivalent
Date	In force now	1 October 2030, single date
Cost cap per property	£3,500 including VAT	£10,000
Exemption length	Mostly 5 years	10 years after the cap is spent
Maximum penalty	£5,000 per property in total	£30,000 per breach, per property
Legal status	Regulations in force	Statutory instrument expected 2027, not yet laid

If you want the dates in one place, the EPC deadline checker turns your certificate’s date and band into a plain list. Treat every planned figure as provisional until the regulations are published. We publish this guide and do not set the rules, so confirm the detail on GOV.UK before you commit money.

What the dual metric means for a boiler or heat pump

The planned standard is two steps, and the order matters. The government response says landlords must first invest towards a primary fabric performance standard. Once the property meets it, or you have a valid registered exemption, you then invest towards a secondary standard.

For that secondary standard the choice is the landlord’s:

• Heating system standard. Low carbon heating, such as a heat pump, helps a property meet this. A gas boiler is unlikely to, because the proposed heating metric is carbon based.
• Smart readiness standard. Measures such as solar panels and batteries count towards this. A smart meter helps too, but only if the tenant requests one.

So a home with a working gas boiler can, on the published policy, aim for the smart readiness route instead. A home with an end of life boiler that you were going to replace anyway is a natural candidate for the heating route.

The government gives the reason for this design. It says the approach resolves the problem where consumers are penalised for installing low carbon heating, such as heat pumps, without punishing gas boiler users. The reason is the current single cost metric on EPCs. Electricity costs more per unit than gas, so a heat pump can look poor on a cost based score even when it is working well.

The order to work in

Treat the planned rule as a sequence. Each step is cheap until you reach the last one.

1. Look up the certificate

Find the EPC for each rented home on the GOV.UK “Find an energy certificate” service. Note the band, the numerical score, the lodged date and the expiry date. If the certificate was lodged before 1 October 2029 and shows C or above on the Energy Efficiency Rating, the planned transitional rule keeps the property compliant until that EPC expires.

2. Read the recommendations

The EPC lists recommended improvements with indicative costs. These are the measures a planned fabric standard is likely to point at, though the final fabric threshold depends on the new EPC methodology, which is not final. Do not assume the recommendations list is exactly what the regulations will ask for.

3. Fabric before heating

Loft insulation, cavity wall insulation, draught proofing and glazing sit in the fabric step. The response states that fabric comes first, so any money spent on a heat pump while the walls and roof leak heat is out of sequence. It is also usually poor sequencing in practice: a heat pump sized before the fabric work may be larger than the home needs afterwards, and a leakier home costs more to heat.

Solid wall insulation is treated specially. The response provides an exemption where solid wall insulation is the only remaining measure needed for the fabric standard and the landlord chooses not to install it.

4. Then decide the heating route

Now compare three paths for the second step:

1. Keep the gas boiler and meet the smart readiness route (solar, battery, smart controls).
2. Replace the boiler with a heat pump at a natural replacement point.
3. Hold an exemption, where one applies.

The worth-it guide and the landlord calculator help with the cost side of path 2.

Where a heat pump fits, and where it does not

A heat pump fits when the boiler is near the end of its life, the fabric work is done or planned, the property has room outside for a unit, and the grant is available. The Boiler Upgrade Scheme pays £7,500 towards an air-to-water or ground source heat pump in England and Wales, and landlords are eligible: the owner of a property that is rented out to tenants can apply through an MCS installer. The grant is a separate matter from the cost cap, and the government response of 21 January 2026 says Boiler Upgrade Scheme funding will not count towards the £10,000 cap, while other government scheme funding can. The regulations are not yet laid, so the final rule may differ. The blog explains the cap question in more detail at does the Boiler Upgrade Scheme count towards the EPC cost cap.

A heat pump is the wrong answer when:

• The boiler works and is not due for replacement. Nothing in the planned rule makes you replace it.
• The fabric is poor and there is no plan to improve it.
• The tenants are on a tight budget and the property has a high heat demand. At the Ofgem price cap for 1 October to 31 December 2026, electricity is 26.32p per kWh and gas is 7.97p per kWh, so a heat pump with a seasonal efficiency of 3 is not automatically cheaper to run than a gas boiler. The tenants pay the bills, which matters for the property’s lettability. See heat pump running costs for tenants.
• There is no space or permission for an outdoor unit, for example in many flats. See heat pumps for flats.

In these cases, insulation, controls or a like for like boiler may be the better spend, and the smart readiness route may close the gap without touching the heating system.

What to do with the dates

Two dates matter. The planned compliance date is 1 October 2030. The planned transitional date is 1 October 2029, because a property with an EPC rated C or above lodged before that date stays compliant until the certificate expires. The response also says spend on relevant measures installed since 1 October 2025 counts towards the cost cap. That makes it worth keeping invoices for any insulation or heating work you have done since then.

Do not rush. There is no sourced reason to buy a heat pump this month because of the 2030 date, and the Boiler Upgrade Scheme, VAT relief and funding windows have their own dates on the grants and funding page. VAT on installing heat pumps and insulation in homes is 0% until 31 March 2027 and 5% from 1 April 2027, according to HMRC VAT Notice 708/6.

New EPCs are coming, and the method is changing

The EPC you hold today is calculated on the older method, and the government is replacing it with four headline metrics: energy cost, fabric performance, heating system and smart readiness. The launch of those new EPCs has been moved to the second half of 2027, according to the GOV.UK consultation page for the Home Energy Model. That affects when a fabric score can be shown on a certificate, so the way a landlord proves compliance will depend on rules and tools that are still being finalised.

Because of that, the sensible approach is to do the steps that are right whatever the final threshold: know the current EPC, read the recommendations, fix the fabric where it is cost effective, and keep a heat pump decision for the point when the boiler needs replacing. Read the page on whether a heat pump improves an EPC rating for what we can and cannot say about the score.

Checklist for each rented home

• Find the EPC and note the band, lodged date and expiry date
• Check whether it is rated C or above and lodged before 1 October 2029
• Read the recommendations and note any fabric measures
• Keep invoices for work done since 1 October 2025
• Check the boiler age and the likely replacement date
• Decide between the heating route and the smart readiness route only once the fabric is settled
• Check for exemptions that may apply, for example third party consent

Next step

If you are weighing a heat pump for a particular rented home, the landlord calculator gives a modelled view of the cost and running cost. If you would rather talk to independent firms, send an enquiry on the quote page: relevant independent firms contact you, with no charge to you and no obligation.