Please note that annual average bill changes and more information can be found on Discover Water
Annual average bill changes 2025 -2026
The changes below will take effect from April 1st 2025. National average water bills for the coming year are forecast to be £603 (a rise of £123 or 26%). This equates to an increase of around £10 a month.
Water and wastewater companies
| Company (region) | 2024-25 | 2025-26 | Change (£) | Change (%) |
|---|---|---|---|---|
| Anglian Water | £527 | £626 | £99 | 19% |
| Dŵr Cymru (Welsh Water) | £503 | £639 | £136 | 27% |
| Hafren Dyfrdwy | £447 | £590 | £143 | 32% |
| Northumbrian Water | £426 | £506 | £79 | 19% |
| Severn Trent Water | £457 | £556 | £99 | 22% |
| South West Water (south west region) | £520 | £686 | £166 | 32% |
| Southern Water | £478 | £703 | £224 | 47% |
| Thames Water | £488 | £639 | £151 | 31% |
| United Utilities | £486 | £598 | £112 | 23% |
| Wessex Water | £556 | £669 | £113 | 20% |
| Yorkshire Water | £467 | £602 | £136 | 29% |
Water-only companies
| Company (region) | 2024-25 | 2025-26 | Change (£) | Change (%) |
|---|---|---|---|---|
| Affinity Water (central region) | £192 | £235 | £43 | 23% |
| Affinity Water (east region) | £225 | £278 | £53 | 24% |
| Affinity Water (south east region) | £249 | £291 | £43 | 17% |
| Bournemouth Water | £144 | £191 | £47 | 32% |
| Bristol Water | £226 | £234 | £9 | 4% |
| Essex and Suffolk Water | £286 | £318 | £32 | 11% |
| Portsmouth Water | £120 | £150 | £30 | 25% |
| South East Water | £245 | £294 | £49 | 20% |
| South Staffs Water (Cambridge region) | £163 | £203 | £40 | 24% |
| South Staffs Water (South Staffs region) | £178 | £224 | £46 | 26% |
| Sutton and East Surrey (SES) Water | £254 | £249 | -£5 | -2% |