It is recommended at least every 10 years.
Answered by Rupert, Electrical Safety Expert
It is recommended that an EICR is carried out at least every ten years for owner-occupied domestic properties. It is a legal requirement to have the installations in English and Scottish rental homes tested every five years (after which an EICR will be issued)*. We recommend that landlords in Wales and Northern Ireland also follow this guidance.
* This will also be a legal requirement in Wales from July 2022.