Charges and billing


To calculate the cost of supplying services to a potential customer within the Welsh Water supply area, see our published charges for our wholesale services.

2025-2026

Assurance Statement - Indicative Wholesale Charges Document 2025-26

Download
38.9kB, PDF

Indicative Wholesale Charges Document 2025-26

Download
127.4kB, PDF

Statement of significant changes - Indicative Wholesale Charges 2025-26

Download
39.5kB, PDF

2024-2025

Wholesale Charges Document 2024-25

Download
139.2kB, PDF

Wholesale Primary Charges Summary Table 2024-2025

Download
13.1kB, XLSX

Assurance Statement Wholesale Charges Document 2024-2025

Download
40.1kB, PDF

Indicative Wholesale Charges Document 2024-2025

Download
88.2kB, PDF

Indicative Wholesale Charges – Board Assurance Statement 2024-2025

Download
38kB, PDF

Indicative Wholesale Charges - Statement of Significant Changes 2024-2025

Download
32.2kB, PDF

Wholesale Billing Timetable 2024-2025

Download
254kB, PDF

2023-2024

Wholesale Charges Document 2023-2024

Download
131.6kB, PDF

Assurance Statement Wholesale Charges Document 2023-2024

Download
41.5kB, PDF

Wholesale Primary Charges Summary Table 2023-2024

Download
13.6kB, XLSX

Board Assurance Statement 2023-2024

Download
37.3kB, PDF

Indicative Wholesale Tariff 2023-2024

Download
112.5kB, PDF

Statement of Significant Changes 2023-2024

Download
32.4kB, PDF

Wholesale Billing Timetable 2023-2024

Download
220.6kB, PDF

2022-2023

Wholesale Tariff Document 2022-2023

Download
105.7kB, PDF

Assurance Statement Wholesale Tariff Document 2022-2023

Download
36.9kB, PDF

Indicative Wholesale Tariff 2022-2023

Download
112.3kB, PDF

Indicative Board Assurance 2022-2023

Download
36.8kB, PDF

Statement of Significant Changes 2022-2023

Download
40.7kB, PDF

Wholesale Billing Timetable 2022-2023

Download
201.4kB, PDF

2021-2022

Wholesale Tariff Document 2021-2022

Download
94.6kB, PDF

Assurance Statement Wholesale Tariff Document 2021-2022

Download
44.6kB, PDF

Value Added Services – Charging information for Retailers 2021-2022

Download
64kB, PDF

Indicative Wholesale Tariffs 2021-2022

Download
97.4kB, PDF

Statement of Board Assurance - Indicative Wholesale Tariffs 2021-2022

Download
33kB, PDF

Statement Of Significant Changes - Indicative Wholesale Tariffs 2021-2022

Download
32.3kB, PDF

Wholesale Billing Timetable 2021-2022

Download
318.6kB, PDF

2020-2021

Wholesale Tariff Document 2020-2021

Download
92.8kB, PDF

Statement of Board Assurance – Wholesale Tariff Document 2020-2021

Download
36.5kB, PDF

Value Added Services – Charging Information for Retailers 2020-2021

Download
64.1kB, PDF

Indicative Wholesale Tariffs 2020-2021

Download
81.7kB, PDF

Statement of Board Assurance - Indicative Wholesale Tariffs 2020-2021

Download
36.6kB, PDF

Statement Of Significant Changes - Indicative Wholesale Tariffs 2020-2021

Download
38.8kB, PDF

Wholesale Billing Timetable 2020-2021

Download
276.1kB, PDF

2019-2020

Wholesale Tariff Document 2019-2020

Download
98.5kB, PDF

2018-2019

Wholesale Tariff Document 2018-2019

Download
98kB, PDF

Wholesale Billing Timetable 2018-2019

Download
39kB, PDF

Indicative Wholesale Tariffs 2018-2019

Download
81.7kB, PDF

Statement Of Significant Changes 2018-2019

Download
20.2kB, PDF

2017-2018

Wholesale Tariff Document 2017-2018

Download
176.5kB, PDF

Wholesale Billing Timetable 2017-2018

Download
190.1kB, PDF