My housemate, who was the account holder on our Thames Water account, moved out of the property I am renting and someone else moved in. I will explain how water bills are calculated, and then come on to why yours might have gone up so much. The first thing to understand is that Thames Water produces an annual bill for each household on 1 April every year. A spokesperson from Thames Water replies: If you don’t have a water meter, charges apply for each day that you occupy your property. Thames Water says this is so that no amount is carried forward into the next billing period from the old bill.

Source: Daily Mail September 02, 2023 14:35 UTC