In 2026, the Scottish Government is introducing a new style of EPC (Energy Performance Certificate).
The exact details are still subject to parliamentary approval, but here’s everything we know so far.
What information will the new EPCs provide?
From 31 Oct 2026, EPCs will include three ratings:
- a heat retention rating
- an energy costs rating
- an efficiency/emissions rating
Each of these will be measured on a scale of A (good) to G (poor).
Each EPC will also come with a property report. This will tell you what improvements you can make to your home and what difference these will make to each rating.
What will the different EPC ratings be?
Heat Retention Rating (HRR)
The Heat Retention Rating will rate how well your home is insulated. It will estimate how much energy (kWh/m2 /year) you’ll need to heat your home to a ‘comfortable temperature’ (21°C in the living area).
The HRR will be worked out using a new system called the Home Energy Model (HEM). This will replace the SAP (Standard Assessment Model) that EPCs currently use.
As well as the current Heat Retention Rating, you’ll also get a potential Heat Retention Rating. This is the score your home could reach if you make the upgrades suggested in the property report.
Heating System Rating (HSR)
The Heating System Rating will rate the emissions and efficiency of your main heating system.
Only homes with heating systems that have no direct or near net zero emissions can be rated C or better.
The ratings are:
| Rating | Heating System Type | Principle |
| A | Heat pump | Zero direct emissions, highly efficient (>100%) |
| B | Heat network, direct electric, hydrogen | Zero direct emissions, efficient |
| C | Bioenergy, hybrid (bioenergy/electric) | Near net zero emissions |
| D | Hybrid (fossil fuel/electric) | Partial zero direct emissions |
| E | Gas, LPG | Emitting, increasing emissions E-G, lower efficiency |
| F | Oil | Emitting, increasing emissions E-G, lower efficiency |
| G | Coal, peat | Emitting, increasing emissions E-G, lower efficiency |
The property report will suggest heating system upgrades, including their estimated installation and running costs.
Energy Cost Rating (ECR)
The Energy Cost Rating will estimate your energy costs (£/m²/year) for heating, hot water, lighting, cooling, and ventilation. It replaces the Energy Efficiency Rating on current EPCs.
The Energy Cost Rating is calculated using expected energy prices from 2026.
As well as the current Energy Cost Rating, you’ll also get a potential Energy Cost Rating. This is the score your home could reach if you make the upgrades suggested in the property report.
When are EPCs changing?
The new regulations will start on 31 October 2026. Any properties advertised for sale or rent before this date can use existing EPCs for up to one year.
From 31 October 2027, only new-style EPCs will be valid.
Why are EPCs changing?
The Scottish Government wants to create EPCs which provide clear and meaningful information for householders. The new style of document also has to support Scotland’s journey to net zero.