Sonia benchmark
Kingston Council's investments surpassed the Sonia benchmark in 2025/26, as reported to its Audit, Governance and Standards Committee.
Kingston upon Thames Council's investments yielded 4.18% for the 2025/26 financial year, outperforming the Sterling Overnight Index Average (Sonia) benchmark of 4.01%. This performance was highlighted in the Treasury Management Annual Report, which the Audit, Governance and Standards Committee reviewed in June 2026. The council kept its invested cash highly liquid.
The committee also reviewed the council's borrowing strategy for 2025/26, which saw £379 million borrowed, £154 million lower than the capital financing requirement. A report to the committee noted that this reduction was achieved by utilising cash reserves amidst a volatile market influenced by global events.
No upcoming meetings are currently listed where the Sonia benchmark is scheduled for discussion.
Key facts
- Kingston upon Thames Council's investments yielded 4.18% for the 2025/26 financial year. Source
- The Sterling Overnight Index Average (Sonia) benchmark was 4.01% for the 2025/26 financial year. Source
- The Audit, Governance and Standards Committee met on June 24, 2026. Source
- Kingston Council borrowed £379 million for the 2025/26 financial year. Source
- This borrowing figure was £154 million lower than the council's capital financing requirement. Source
About this summary
This summary was written automatically from our published stories and the council meeting records they draw on, with background from Wikipedia. It describes what councils have discussed and decided; it does not take a view on any decision. Each key fact links to the story it comes from. Updated 30 September 2026. Spotted a mistake? Email community@opencouncil.network.