| Impact category | Best estimate (£ million) | Low (£ million) | High (£ million) | Uncertainty rating |
| Residential properties | £350 | £308 | £392 | Medium to low |
| Businesses | £513 | £410 | £616 | Medium to low |
| Temporary accommodation | £37 | £31 | £43 | Medium to low |
| Vehicles, boats, caravans | £36 | £31 | £41 | Medium to low |
| Local authorities (excluding roads) | £73 | £55 | £92 | Medium to high |
| Emergency services | £3 | £3 | £3 | Medium to low |
| Flood management asset and service | £71 | £63 | £78 | Low |
| Utilities—energy | £83 | £75 | £91 | Low |
| Utilities—water | £21 | £16 | £26 | Medium to high |
| Transport—rail | £121 | £103 | £139 | Low |
| Transport—roads | £220 | £165 | £275 | Medium to high |
| Agriculture | £7 | £6 | £8 | Medium to low |
| Health | £43 | £32 | £54 | High |
| Education | £4 | £3 | £5 | High |
| Other (wildlife, heritage and tourism) | £19 | £13 | £25 | High |
| Total | £1.6 billion | £1.3 billion | £1.9 billion |