The Annual Report and Financial Statement (ARFS)
The primary purpose of the ARFS is to ensure compliance with legal duties and to share a range of financial and other information. To respond to the needs of our many stakeholders we provide an overview of our performance and plans, along with additional information for specialist groups and to fulfil legal requirements.
Yorkshire Water Services Limited Annual Report and Financial Statements for 2025/26
Delivering for Yorkshire
Here is the first of our half yearly public reports on our performance which covers the first year of our largest ever environmental investment programme. We’ll publish a document like this every six months to help you keep up to date on how we are delivering on our plans.
You can watch our video that gives an overview of what we’ve been up to between April 2025 and March 2026:
Summary of Ofwat Undertaking Plan
Trusting our information – Our assurance
"It's important to us that our customers and stakeholders can be sure of the quality of the information we publish so that they have trust and confidence in us. Here, you can view our assurance plan for our Annual Performance Report, published each July, which shows you how we check and review our information to make sure that what we publish is correct.
Achieve
Our reports 2025
Yorkshire Water Services Limited Interim Report and Financial Statements 2025
Yorkshire Water Services Limited Annual Report and Financial Statements for 2024/25
Annual Performance Report 2024/2025
Risk and Compliance Statement 2024/2025
A summary of our performance 2024/2025
Accounting Separation Methodology Statement
APR 2024/2025 Excel tables (Excluding 3A-I)
APR 2024/2025 Excel tables 3A-3I
APR 2024/2025 Open Data CSV File
YKY 2024-25 Blind year reconciliation supporting commentary
Our reports 2024
Yorkshire Water Services Limited Interim Report 2024
Annual Performance Report 2023/2024
Changes we've made to our 2023/2024 APR
Risk and Compliance Statement 2023/2024
A summary of our performance 2023/2024
APR 2023/2024 Excel tables (Excluding 3A-I)
APR 2023/2024 Excel tables 3A-3I
APR 2023/2024 Open Data CSV File
Accounting Separation Methodology Statement
Yorkshire Forum for Water Customers Statement
Yorkshire Water in-period ODI report 2023/2024
Yorkshire Water Services Limited Annual Report and Financial Statements for 2023/24
Our Response to Ofwat's In-Period ODI Draft Determination
Our reports 2023
Yorkshire Water Services Limited Annual Report and Financial Statements for 2022/23
Annual Performance Report 2022/2023
Annual Performance Report - Changes we've made
Risk and Compliance Statement 2022/2023
A summary of our performance 2022/2023
APR 2022/2023 Excel tables (Excluding 3A-I)
APR 2022/2023 Excel tables 3A-3I
Accounting Separation Methodology Statement
Yorkshire Forum For Water Customers Statement 2023
Yorkshire Water in-period ODI report 2022/2023
Ofwat's Draft Determination of Yorkshire Waters In-Period ODI for 2022-23
Our reports 2022
Yorkshire Water Services Limited Interim Report 2022
Our Contribution to Yorkshire 2022
Sustainable Finance Framework Allocation Report 2022
Yorkshire Water Services Limited Annual Report and Financial Statements for 2021/22
Annual Performance Report 2021/2022
Annual Performance Report - Changes we've made 2021/2022
Risk and Compliance Statement 2021/2022
A summary of our performance 2021/2022
APR 2021/2022 Excel tables (Excluding 3A-I)
APR 2021/2022 Excel tables 3A-3I
Yorkshire Forum for Water Customers Statement 2021/2022
Accounting Separation Methodology Statement
Yorkshire Water in-period ODI report 2021/2022
Our reports 2021
Yorkshire Water Services Limited Annual Report and Financial Statements for 2020/21
Annual Performance Report 2020/2021
Annual performance report 2020/2021 - changes we've made
Risk and Compliance Statement 2020/2021
A summary of our performance 2020/2021
APR 2020/2021 Excel tables (Excluding 3A-I)
APR 2020/2021 Excel tables 3A-3I
Yorkshire Forum for Water Customers Statement 2020/2021
Accounting Separation Methodology Statement
Our reports 2020
Yorkshire Water Services Limited Interim Report 2020
Yorkshire Water Services Limited Annual Report and Financial Statements for 2019/20
Our Annual Performance Report 2019/2020
Annual performance Report 2019/20 - the changes we've made
Annual performance Report board statements
Annual performance Report 2019/20 - updated February 2021
Yorkshire Forum for Water Customers Statement
APR 2019/20 Excel tables February 2021