Last reviewed: 9 May 2026By Eco Home Check Editorial Team
Landlords in England and Wales must have a minimum EPC rating of E to legally let a property. The government has proposed raising this to band C by 2030 for new tenancies, though final legislation is still pending. Penalties for non-compliance start at £2,000 per property and can reach £30,000 for serious breaches. Here's what you need to know, and which grants can help fund the upgrades.
What the law currently requires
The regulation behind all of this is called MEES: Minimum Energy Efficiency Standards. It's been in force since 2018 for new tenancies and 2020 for continuing ones, and it sets the floor at EPC band E. Anything F or G means the property cannot legally be let. Full stop.
Check if you qualify
Answer a few quick questions to see which government energy grants you're eligible for. Free, instant results.
It applies to privately rented residential properties in England and Wales. Scotland runs its own system. Northern Ireland has different rules again. If your portfolio crosses the border, check each jurisdiction separately. The bands and deadlines don't line up.
A few categories sit outside MEES. Properties that don't legally need an EPC at all are exempt by definition (some short tenancies, some non-self-contained accommodation). Listed buildings have a limited carve-out where upgrades would alter the protected character. Holiday lets fall in or out depending on letting patterns, and the test is fiddly. If you're unsure about your specific property, the GOV.UK landlord guidance is the place to start before you call a solicitor.
The penalty structure splits at three months. Breaches under three months are £2,000 to £5,000 per property. Beyond three months, the maximum jumps to £30,000. Penalties are issued by your local authority's Trading Standards team, not the courts, and not automatically. They've been patchy in the past. They're getting less patchy as councils start cross-referencing the EPC register against their housing records to find unlisted private lets.
If you've got an older EPC rating on file, the legal point that matters is the rating that's currently valid against your tenancy, not whatever the property actually scores today. A certificate is valid for 10 years from the date it was issued.
The proposed 2030 band C target
Here's where it gets messy.
The government's plan, currently working through consultation, is to raise the MEES minimum to EPC band C in two stages. New tenancies first, by 2028. Then all existing tenancies, by 2030. The Department for Energy Security and Net Zero published its consultation response in January 2026 confirming the intent to legislate, but not the exact wording or the final timelines. Until a statutory instrument lands, this is a proposal, not the law.
We've watched this proposal float around since 2020. It was originally tabled under the previous government, then shelved, then revived, then pushed back from 2025 to 2028. The latest 2026 response confirms the direction of travel, but the timeline keeps slipping. Don't panic-spend on upgrades chasing a deadline that may move again.
That said: if your portfolio is currently sitting at band D or below, getting to C is a substantial piece of work, not a weekend job. Starting now is sensible even if the deadline shifts. The cost is the cost. The grants might not be there forever.
What does getting from band E to C actually involve? It depends on the property, but the typical menu looks something like this:
Loft insulation topped up to 270mm if it isn't already (£300 to £600)
Cavity wall insulation if the cavity is unfilled (£400 to £800)
An upgraded heating control system or smart thermostat (£200 to £400)
A heating upgrade, often the biggest single lever (£3,000 to £15,000+)
Double or triple glazing if you're still on single glaze (£3,000 to £10,000)
Solar panels can lift the SAP score and may push the rating up by one to two bands (£5,500 to £8,000 for a 4kW system)
Total cost from E to C, end to end, for a typical Victorian terrace or 1930s semi: £5,000 to £15,000. Older or harder-to-treat homes (solid wall, off-grid, listed) can push higher. If you're handing the property to letting agents to manage, also factor in the rent void during major works.
Two practical scenarios we see often. A 1930s semi with cavity walls, single glazing and a 12-year-old boiler typically lifts from E to C with cavity wall insulation, loft top-up, smart controls and a new condensing boiler. Total around £6,000 to £8,000. A solid-wall Victorian terrace is harder. Solid wall insulation is expensive and disruptive, and getting from E to C without it is unlikely. Budget closer to £15,000 if external wall insulation ends up being the route.
We've seen landlords skip the heating upgrade because they assumed they'd need a heat pump. Often the SAP improvement from a new condensing boiler plus controls is enough to clear band C on its own. The Boiler Upgrade Scheme is also available to landlords for heat pumps if you do go that route, which we'll come back to in a minute.
For the upgrade priorities and what actually shifts a band, our how to improve your EPC rating guide breaks each measure down by SAP impact and cost.
EPC exemptions
Exemptions exist. Most landlords assume they'll qualify. Most won't.
There are four main routes:
Listed building exemption. If improvements would alter the character of a listed property, you may be exempt. This is the most legitimate exemption and the one councils most often accept.
High-cost exemption. If the cheapest route to band E (or eventually C) costs more than £10,000 including VAT, you can register an exemption. The £10,000 cap sounds generous, but the calculation has to use approved measures only and assumes you take advantage of available grants. In practice, fewer properties qualify than landlords expect.
Wall insulation exemption. If installing cavity wall or solid wall insulation would damage the property's structure (penetrating damp, condensation issues), and you have written advice from a qualified surveyor confirming this, you can be exempt from that specific measure.
Devaluation exemption. If the upgrades would reduce the property's market value by 5% or more, supported by a chartered surveyor's valuation, the property can be exempt.
All exemptions must be registered on the PRS Exemptions Register. They aren't automatic. They're time-limited (usually five years), and the council can refuse to accept them if the documentation isn't watertight.
Honestly, exemptions are harder to get than landlords think. The £10,000 cap is generous on paper, but the calculation is strict. For most properties, the cheaper route is the upgrade itself.
Which grants can landlords use?
Most landlord grant guides skip this part. There's more available than most owners realise, but the rules are quirky.
ECO4: yes, but with a catch. The grant is funded through the energy supplier and pays for insulation and heating upgrades. The catch: the tenant has to qualify on the qualifying benefits list (Universal Credit, Pension Credit, Child Tax Credit, Income Support and a few others). Not the landlord. Your tenant's circumstances determine eligibility, and you give written consent for the work. If your tenant is on Universal Credit, your loft, cavity walls or boiler could be fully funded. ECO4 runs until December 2026 and is administered by Ofgem through the major suppliers.
Most landlord grant guides don't mention this, but ECO4 is paid through the energy supplier and the tenant has to qualify, not you. If your tenant is on Universal Credit, your insulation could be fully funded.
Boiler Upgrade Scheme: fully available to landlords. £7,500 off an air source heat pump or ground source heat pump. No income test. No tenant qualification needed. The grant is paid directly to the MCS-certified installer, who deducts it from the quote. The scheme runs until March 2028. For rural properties on oil or LPG, the maths often works out well: heat pumps cost less to run than oil, and the £7,500 closes most of the upfront cost gap.
There's a side note worth flagging on heat pumps in rentals. The EPC scoring system tends to penalise electric heating in older properties, even when a heat pump is more efficient and cheaper to run than the oil boiler it replaces. SAP methodology hasn't fully caught up. Anyway, that's a separate frustration. The grant itself is solid.
Warm Homes Local Grant: depends on your council. Some authorities specifically extend their schemes to landlords. Others restrict to owner-occupiers. Sheffield, Newcastle and a handful of others have run landlord-friendly schemes. Cornwall, Manchester and various London boroughs have not. Warm Homes funding gets allocated to local authorities, and how they spend it varies. Check your council's website before assuming you're eligible. The scheme is open until December 2028.
If you've got a tenant in receipt of qualifying benefits, ECO4 is the route most landlord guides don't mention. It's worth checking eligibility on the property before paying out of pocket.
Practical compliance steps
Five steps, in order.
Step 1: Check your current EPC. Go to the GOV.UK EPC Register. It's free, takes about thirty seconds, and shows the rating, expiry date and the recommended improvements list.
Step 2: If you're at F or G, act now. You're already in breach for new tenancies and continuing ones. Letting on an F or G is unlawful unless you have a registered exemption. Don't wait for a council letter.
Step 3: If you're at band E and planning a new tenancy, consider a fresh assessment. EPC methodology updates mean some properties now assess one band higher than they did five years ago, particularly if you've added a smart meter, a new boiler, or any insulation since the last certificate. Quidos and Elmhurst Energy are the two main accreditation schemes, and a domestic EPC costs £40 to £120 depending on the assessor.
Step 4: If you're at band E or D and planning ahead, prioritise the cheapest upgrades first. Loft insulation. Cavity wall. Smart thermostat. These together often shift the rating by a full band for under £1,500.
Step 5: Document everything. Keep certificates, installer paperwork, exemption applications and dated photos. If a council ever queries compliance, the burden of proof sits with you.
What happens if you don't comply
It starts with a compliance notice from the local authority. You then have a window to fix the breach or register a valid exemption. Ignore the notice and the council issues a penalty notice with a financial penalty attached.
The penalty depends on duration and severity. Under three months: £2,000 to £5,000. Over three months: up to £30,000. Repeated breaches across a portfolio compound. Each property is a separate offence.
Beyond the fine, councils can also publish non-compliance on the PRS Exemptions Register, which is publicly searchable. That's not great for portfolio reputation if you're applying for buy-to-let mortgages or selling on. Tenants can also report non-compliance to their council directly, and they're being told to do so by Citizens Advice and Shelter when they raise damp or cold complaints.
Enforcement was patchy for years. It isn't now. Trading Standards teams use EPC register cross-checks and tenant complaints as triggers, and budgets for this work increased through recent funding rounds. Don't bank on getting away with it.
Most landlords land somewhere between bands D and E and have a real upgrade decision to make over the next 18 months, with or without the 2030 band C deadline. The rules around grants for rental property are quirky but more generous than most landlord forums suggest. Check which grants apply to your rental property. Two minutes. You'll see exactly what your tenant's circumstances qualify the property for and what you can claim directly.
For broader context on how EPCs fit into the wider grants picture, our EPC hub collects all of our coverage in one place.
This article contains affiliate links. If you request quotes through our links, we may receive a commission at no extra cost to you. This helps keep Eco Home Check free and independent. How we earn
Grant amounts and eligibility criteria are based on publicly available government data and may change. Always verify current terms directly with the scheme provider.
Frequently asked questions
What's the minimum EPC rating for renting in 2026?
Band E for both new and continuing tenancies in England and Wales.
Do landlords have to upgrade to EPC C by 2030?
Not yet. The government has proposed raising the minimum EPC rating to band C for new tenancies by 2028 and all tenancies by 2030, but the proposal hasn't been written into law as of early 2026. The January 2026 consultation response confirmed the intent to legislate but didn't fix exact timelines, and similar deadlines have slipped before. Treat the C target as likely but not certain. Start planning upgrades now if your properties are at band D or below, but don't panic-buy upgrades for a deadline that could shift again.
What happens if my rental property has EPC F or G?
It's unlawful to grant a new tenancy or continue an existing one on an F or G property without a registered exemption. The local authority's Trading Standards team can issue a compliance notice followed by a penalty of £2,000 to £30,000 depending on duration. The property can also be added to the PRS Exemptions Register's non-compliance list, which is publicly searchable. The fix is either a valid exemption or upgrades that lift the property to band E or above.
Can I get exempt from EPC rules as a landlord?
There are four exemption routes: listed buildings, high-cost (over £10,000 to upgrade), wall insulation that would damage the property, and devaluation of 5% or more. All exemptions must be registered on the PRS Exemptions Register and are time-limited, usually for five years. They aren't automatic, the documentation has to be watertight, and councils can refuse them. In practice, exemptions are harder to get than most landlords expect.
Can I get a grant to upgrade my rental property?
Three main routes are available. ECO4 funds insulation and heating but the tenant must be on qualifying benefits like Universal Credit, not the landlord. The Boiler Upgrade Scheme gives landlords £7,500 off a heat pump installation directly, with no tenant test. Warm Homes Local Grant funding varies by council, with some specifically supporting landlords and others restricting to owner-occupiers.