On 21 January 2026 the government confirmed a firm timetable that private landlords in England and Wales had been waiting on for years: every rental property must reach a minimum Energy Performance Certificate rating of Band C by 1 October 2030, unless a valid exemption applies. For landlords still letting on an EPC D, E or lower, this is no longer a distant possibility — it's a compliance deadline with a defined cost cap, a new assessment method and real financial penalties attached.
The current Minimum Energy Efficiency Standard requires rental properties to hold at least an EPC E. From 1 October 2030, that minimum rises to Band C for all tenancies, replacing the previous, repeatedly delayed proposals with a confirmed date. Landlords with properties already at C or above have nothing further to do on this front; those at D or below need a plan for how they'll close the gap — whether through fabric improvements such as insulation, more efficient heating systems, or a combination of measures — well before the deadline arrives, rather than in the final year when contractors and grant schemes are likely to be under the most pressure.
From October 2026, new domestic EPCs move away from the single headline rating most landlords are familiar with, to a multi-metric format built around four core indicators: an Energy Cost Rating, a Fabric Performance Rating, a Heating System Rating and a Smart Readiness Indicator. In practice this means a property's certificate will say more about where its energy performance actually comes from — the building fabric versus the heating system, for example — which should help landlords target improvements more precisely rather than guessing at what will move the headline number. Existing valid EPCs remain usable until they expire; there's no need to re-certify early purely because the format is changing.
To make the target achievable, the government has set a maximum required investment of £10,000 (including VAT) per property. Landlords are not expected to spend beyond this cap to reach EPC C, and can apply for an exemption if reasonable measures up to that limit still leave the property below Band C. Usefully, spending on energy efficiency improvements from 1 October 2025 onward already counts towards the cap — so landlords who have upgraded insulation, glazing or heating since that date should keep receipts and documentation, as this work can be offset against the £10,000 limit rather than treated as a separate, earlier cost.
Currently an EPC remains valid for ten years. Under the new rules, certificates will only be valid for five years, meaning landlords will need to budget for more frequent reassessments over the life of a tenancy. This is worth factoring into longer-term maintenance and improvement planning, particularly for landlords who assumed a single certificate would comfortably cover an entire decade of letting.
Local authorities will be able to fine non-compliant landlords up to £30,000 per property, per breach. This covers letting a property that doesn't meet the minimum standard, failing to comply with a local authority compliance notice, and providing false or misleading information when registering for an exemption. Given the scale of the penalty, and the fact that enforcement sits with local authorities who are expected to take an increasingly active role, treating this as a genuine compliance deadline — rather than a guideline — is the sensible approach.
With four years until the October 2030 deadline, the most efficient approach is to start now: get an up-to-date EPC assessment for every property below Band C, get quotes for the improvements needed to reach C, and sequence the work across your portfolio so you're not trying to fund and deliver everything in the final twelve months. Keep every invoice from October 2025 onward, as it may count towards your £10,000 cap. If you're unsure where a property currently stands or what's realistically achievable within budget, our lettings team at Giles Real Estates can talk through your portfolio and help you plan a sensible order of works.