Nothing rewards civil servants for staying in post: churn as an anti-capability machine
Institute for Government Whitehall Monitor data shows 12.7 per cent of civil servants moved department or left in 2023-24, the second-highest churn since 2010-11, with 21.8 per cent turnover in HM Treasury and 20.5 per cent in the Cabinet Office. Flat in-post pay progression makes promotion by moving the only route to a raise, so expertise drains from the teams running planning reform, infrastructure and industrial strategy. No government programme addresses the incentive structure itself.
State capacity is a growth input. A Treasury that turns over a fifth of its staff annually cannot hold institutional memory on decade-long delivery programmes, one reason projects like HS2 and the Integrated Data Service fail expensively and reforms die between commencement orders.
Capability-based in-post pay progression plus minimum-tenure agreements for Senior Responsible Owners and key delivery roles, piloted in the delivery departments with published retention metrics.
// State-led: Instrument: Cabinet Office/Treasury pay-remit reform for in-post progression and SRO minimum tenure.
A fifth of Treasury staff churn annually and nobody addresses the pay-incentive structure, and the stakes are diffuse with the HR fix unproven and no dated trigger.
One gap, several dossiers: entries folded into this one (1)
The research pass surfaced this gap independently in more than one domain. Those entries are merged here so the map counts it once: the same pay-and-workforce machinery counteracting promotion-by-moving churn.
№ 162 · No accountability mechanism for civil service churn and knowledge retention (Policy (lens))
Whitehall Monitor 2026 shows turnover fell from 12.7% (2023/24) to 8.9% (2024/25) largely because recruitment freezes blocked moves, not because retention improved, while exit schemes across 33 departments and ALBs target 8,586 leavers (~2.5x the historical average), risking institutional-memory loss in operationally stressed areas like prisons and asylum. Senior Civil Service pay remains ~24% below 2010 in real terms, pushing promotion-by-moving. The IfG recommends published departmental turnover targets with permanent-secretary accountability; the government's strategic workforce plan is delayed. No department currently publishes churn targets, and no mechanism ties knowledge retention to anyone's performance. The Policy Profession and Civil Service College-type training exist but do not address the incentive to move.
Its fill: Cabinet Office publishing per-department turnover and median-tenure targets in outcome delivery plans, with permanent secretaries accountable for them; pay flexibility so deep specialists can progress without moving; and publication of the delayed strategic workforce plan with these mechanisms in it. Committee interest: PACAC.