Certificate validity periods
ComplyLet Pro calculates expiry from the certificate type’s validity months plus the issue date. That calculated date is the source of truth. AI extraction may suggest an expiry as a cross-check only.
Typical UK types (confirm against your documents and local rules):
| Type | Usual validity |
|---|---|
| Gas Safety (CP12) | 12 months |
| EICR | Often 5 years (context-dependent) |
| EPC | Up to 10 years |
| Legionella risk assessment | Often annual review |
| HMO licence | As stated on the licence |
Missing legally required certificates show as missing on the property. Insurance and “other” types do not drive the missing state.