Business Context and Reporting Period
Company: National Grid plc
Filing Type: Form 6-K (Report of Foreign Private Issuer)
Date: December 11, 2025
Context: This filing announces the outcome of a formal competitive audit tender process conducted by the Audit & Risk Committee.
Key Financial Metrics
The filing text does not provide a clear value for revenue, profit, cash flow, margins, debt, or liquidity. This document is a corporate governance announcement regarding auditor appointment and contains no financial performance data.
Material Changes
There are no material financial changes reported in this filing. The primary change is the Board's approval of the re-appointment of Deloitte LLP as the external auditor.
Guidance, Outlook, and Management Commentary
- Auditor Re-appointment: Deloitte LLP is proposed for re-appointment as external auditor effective from the financial year ending March 31, 2028.
- Shareholder Approval: The re-appointment for the 2028 year is subject to shareholder approval at the 2027 Annual General Meeting (AGM).
- Continuity: Deloitte will continue as auditor for the years ending March 31, 2026, and, subject to 2026 AGM approval, March 31, 2027.
- Regulatory Compliance: The tender aligns with the UK Statutory Audit Services for Large Companies Market Investigation Order 2014, requiring tenders every 10 years and rotation every 20 years. Deloitte was initially appointed for the year ending March 31, 2018.
- Future Disclosure: Detailed information on the audit tender process will be included in the 2026 Annual Report and Accounts.
Investor Verification Checklist
- Verify the outcome of the shareholder vote at the 2027 AGM regarding the 2028 auditor appointment.
- Confirm the final terms of the audit engagement in the 2026 Annual Report and Accounts.
- Monitor the 2026 AGM for approval of the auditor for the year ending March 31, 2027.