Three facts frame every version of this decision. A valid EPC stays valid for its full 10 years, through every reform Partial response Mar 2026. New assessments run under RdSAP 10 and reward documentation Elmhurst RdSAP 10. And the 2030 landlord standard applies from 1 October 2030 no matter how fresh your current certificate is Gov response Jan 2026.
| You are | Verdict | Because |
|---|---|---|
| Selling soon | Renew only if expired or expiring mid-sale | A valid certificate of any band sells the house; ordering before marketing is the only hard rule GOV.UK |
| A landlord at E or D | Wait, then renew after works | A casual renewal risks scoring lower under evidence rules and manufacturing a compliance problem. Do the fabric works, file the invoices, then re-assess |
| A landlord who just improved the property | Renew now | Works are documented and fresh; RdSAP 10 will score them, and your register entry starts reflecting reality Elmhurst RdSAP 10 |
| An owner-occupier | Do nothing | No duty attaches to living in your own home with an expired certificate. Renew when you next sell, let or want updated recommendations |
| Buying | Use the seller's certificate | It is valid for you for its remaining life. Commission your own only after improvement works, when a better band is worth putting on the record |
The wait-for-reform argument, honestly
Reformed, four-metric EPCs are targeted from October 2026 Partial response Mar 2026, and the 2030 obligation will be measured against the new metrics Gov response Jan 2026. That tempts some landlords to sit tight until the new certificates exist. Reasonable, with one caveat: fabric improvements lead the new standard, so fabric work done now is the least likely spend to be stranded by the metric change. What genuinely can be stranded is an assessment fee paid early for no reason.
Check your expiry with the expiry checker, the methodology detail on RdSAP 10, and the full deadline picture on EPC C by 2030 and the reform tracker.