Wholesaler charges increase from 1 April 2025
Wholesalers are required to publish details where bill increases are greater than 5% from the previous year.
There are significant wholesaler price increases for the 2025-26 charging year, up to 46% in one wholesaler area region.
The charges increase you will see reflected on your bill will vary depending on your wholesaler. If you have multiple sites across different wholesaler regions, your charges will again vary across your bill.
For your ease, we have listed below the headline figures, where published, and links for each wholesaler with more detailed information on their 2025-26 charges.
| Wholesaler | Headline figures |
| Affinity Water | Average typical bill increase 25.6% |
| Anglian Water | - |
| Bristol Water | - |
| Bournemouth Water | - |
| Northumbrian Water | Water charges have increased by around 20% |
| Portsmouth Water | Average water bill increase 25% |
| SES Water | - |
| Severn Trent Water | - |
| South East Water | - |
| South Staffs Water | - |
| Southern Water | Charges increase water 41% and sewerage 54% |
| South West Water | - |
| Thames Water | Typical non household wholesale bill increase 31% |
| United Utilities | Wholesale charges will rise by 23.6% on average (Split by 21.4% Water & 25.4% Wastewater) |
| Wessex Water | Bill increases will be in the range of 16% (i.e. a low water-only user) to 27% (a higher sewerage-only user) |
| Yorkshire Water | Average increase 29% |
| Scottish Water | Primary wholesale charges have increased by 9.9% |