What's the minimum EPC rating to let a property right now?
Today the binding minimum is EPC band E, and it has been for years. The Energy Efficiency (Private Rented Property) (England and Wales) Regulations 2015 make it unlawful to let a domestic private rented property rated below E unless a valid exemption applies. The regulations call anything below E 'sub-standard', and the letting prohibition has applied to new tenancies since 1 April 2018 and to continuing tenancies since 1 April 2020. If you rely on an exemption — for example because the work would cost more than the relevant cap, or a tenant withholds consent — it only counts once it is recorded on the PRS Exemptions Register. An unregistered exemption is no defence. These rules cover the private rented sector in England and Wales; Scotland and Northern Ireland set their own standards.
Is EPC C by 2030 actually law yet?
No. EPC C is confirmed government policy, but it is not yet law, and the distinction matters for anyone planning works or budgets. In its response of 21 January 2026 the government confirmed it intends to require all private tenancies to meet a higher standard, equivalent to EPC C, by 1 October 2030. To get there it must first secure new powers through an Act of Parliament, then lay a statutory instrument to amend the 2015 regulations — a step the government aims to bring into force in 2027. As of today no such instrument has been made or laid before Parliament. Until it is, EPC E remains the only legally binding minimum. So treat 2030 as a firm direction of travel to plan around, not a deadline that currently binds you.
What will the EPC C standard require, and how much can it cost?
The 2030 standard is set to be dual-metric rather than a single rating. The government's January 2026 response describes a primary fabric performance standard that landlords must meet first — think insulation and the building envelope — followed by a secondary standard measured against either a smart readiness metric or a heating system metric. Spending is capped: the response sets a £10,000 maximum per property over a ten-year period, and estimates the average spend needed to reach the standard at around £5,400. The exact reformed-metric thresholds that will define 'EPC C equivalent' have not been fixed in legislation yet, so be wary of anyone quoting precise numbers. The headline figures to plan around are the £10,000 cap and the 2030 date.
Are there exemptions if I can't afford the work?
The confirmed policy builds affordability protections into the future regime. The headline £10,000 cap means you should never be required to spend beyond that on a single property to reach the standard. On top of that, the government's January 2026 response sets out a Property Value Adjustment exemption for lower-value homes: properties valued below £100,000 would face a lower maximum spend, equivalent to 10% of the property's value. None of this is in force yet — the current exemptions under the 2015 regulations are what apply today, and they still need registering on the PRS Exemptions Register to count. Keep an eye on how the new exemptions are defined when the statutory instrument is laid, because the detail will decide who qualifies.
What's changing with EPCs themselves?
The certificate is changing too, which is why the C target is described against 'new' EPCs. In a partial response published in 2026 the government confirmed it will move to reformed, new-style EPCs that report several headline metrics — fabric performance, heating system, smart readiness and energy cost — rather than the single rating used today. New-style certificates are targeted from October 2026, with further detail expected later in the year. The 2030 EPC C standard will be measured against these reformed metrics, not the current single band. In practice that means a property comfortably rated C on today's certificate is not automatically guaranteed to meet the future standard, so an existing rating is a useful starting point rather than a final answer.
What should landlords do now?
Start with what is already mandatory: make sure every let property holds a valid EPC at band E or above, and that any exemption you rely on is registered. That is the live legal requirement, separate from anything coming in 2030. Beyond that, the practical move is to plan the upgrade work over time rather than face it as a single bill. The £10,000 cap is framed over a ten-year period, so spreading fabric improvements across normal void periods and refurbishments lets you absorb the cost gradually instead of scrambling close to 2030. Check each property's current EPC and its expiry, note where the weak points are, and watch for two things: the statutory instrument that turns the C target into law, and the new-style EPCs from October 2026. Bear in mind the social rented sector has its own separate, also-pending timeline, so guidance aimed at social landlords won't necessarily apply to you. Knowing each property's EPC status and renewal date in one place makes the whole thing manageable.