Hounslow Council's total external debt has surged to £664.41 million, a significant increase primarily driven by borrowing for the capital programme. This figure was detailed in the Treasury Management Annual Report for 2025/26, which outlines the council's borrowing and investment activities.

A line graph illustrating the Prudential Limits versus Gross Borrowing Position for Hounslow Council from Q1 2023-2024 to Q4 2025-2026, showing the Operational Boundary, Authorised Limit, and Gross Borrowing in £m.
Prudential Limits v. Gross Borrowing Position 2023-2026 (£m)Source: Audit and Governance Committee papers, 8 September 2026

The report confirmed that the council remained compliant with its Treasury Management Strategy and Prudential Indicators throughout the financial year. Jake Bacchus, Executive Director of Finance and Resources, presented the findings.

The council's total investment position increased to £73.5 million. The report details this investment portfolio for 2025/26, including the treasury position as at 31 March 2026, and provides a breakdown of treasury and non-treasury investments. The council continued to invest surplus cash balances prudently, with security of capital and liquidity as primary objectives, while seeking to optimise investment returns. The weighted average return on internally managed funds was 4.09%, against a benchmark of the Average O/N SONIA rate of 4.01%. Total investment income for the year amounted to £2.745 million.

A line graph showing the fluctuations of an investment portfolio in (£m) over the financial year 2025/26, with separate lines for 'Legal & General' and 'MMF'.
Investment Portfolio 2025/26 (£m)Source: Audit and Governance Committee papers, 8 September 2026

While the report confirms the council's prudent approach to investments and provides overall return figures, a detailed breakdown of the nature of the entire £73.5 million investment portfolio and specific returns for each component are not provided within the document. The full Treasury Management Annual Report 2025/26 can be found in the Public reports pack Tuesday 08 Sep 2026 18.00 Audit and Governance Committee.