How long is an EPC valid for?
An Energy Performance Certificate is valid for ten years from the date it is lodged on the register. Within that period you can sell or let the same property as many times as you like without commissioning another one.
The ten-year rule, precisely
- Ten years from lodgement, not from the assessor's visit or from when you received the document.
- Reusable within the period. Selling and then letting the same property four years later reuses the same certificate.
- Expiry is not a penalty. An expired EPC is not an offence in itself. What it means is that you have no valid certificate for the next transaction, and you need a valid one to market a property for sale or let.
- Improvements do not shorten it. New insulation or a new boiler does not invalidate the existing certificate — but it also will not show until a new assessment is carried out.
When you may want a new one before it expires
Nothing forces a re-assessment inside the ten years, but there are cases where it pays:
- You have made real improvements. Insulation, glazing or a heating change will not appear on the old certificate, and a better band is worth having in front of a buyer or a lender.
- You are close to a band boundary. Band C starts at 69 points and band D runs 55–68. A property assessed at 67 may cross with modest work — relevant to any landlord planning against the announced 2030 standard.
- The existing certificate looks wrong. Assessments record what the assessor could see and evidence. Where insulation existed but could not be verified, the certificate may assume a default worse than reality.
- A green finance product requires a current rating. Some lenders price against an up-to-date certificate.
How to check your expiry date
Every England and Wales certificate is on the government EPC register and free to look up by postcode. The register shows the lodgement date, the expiry date, the current band and score, and the recommendations. Our guide to checking a property's EPC walks through the lookup and how to read the result.
Does reform change the ten years?
The government has confirmed a reformed domestic EPC regime, planned for the second half of 2027, with four headline metrics and a new methodology still under development. The announced transition intends current-style and reformed certificates to run in parallel for a period. Until that lands, the ten-year validity of a certificate you hold today is unchanged. Our guide to the planned EPC reform covers what is confirmed against what remains subject to change.
Frequently asked questions
How long does an EPC last?
Ten years from the date it is lodged on the register. It can be reused for any number of sales or lettings within that period.
Do I need a new EPC every time I rent out my property?
No. If the existing certificate is still within its ten years you can reuse it for a new tenancy. You do need to check that its band meets the minimum standard for letting.
Is it illegal to have an expired EPC?
Having an expired certificate is not itself an offence. You need a valid EPC to market a property for sale or let, so the expiry matters at the point of the next transaction.
Does a new boiler or insulation invalidate my EPC?
No. The existing certificate stays valid for its full ten years. The improvement simply will not be reflected until a new assessment is carried out.
Sources
- Find an energy certificate — GOV.UK EPC register
- Energy Performance Certificates when buying or selling — GOV.UK