Having a smart meter is recorded on your EPC under RdSAP 10, but it doesn’t affect your rating or band. EPCs are based on your building’s construction, insulation, and heating systems, not how you monitor your usage.

A smart meter is noted for reference, similar to solar panels or battery storage, but it has no bearing on the calculated running costs behind your score. It’s important the assessor can access your meters to record the correct type. That could change in future EPC versions as smart energy management becomes more widespread, but for now it’s recorded, not scored.