What the WHIU is
The Workplace Health Intelligence Unit is one of the headline measures to come out of Sir Charlie Mayfield's Keep Britain Working review, announced by the government on 3 July 2026. It is designed to solve a problem the government has named directly: right now, sickness absence is tracked inconsistently across the economy, and the success of return-to-work efforts is rarely measured. Nobody has a clear, comparable picture of how workplaces are doing on health.
The WHIU is meant to be that picture. It will coordinate the collection, aggregation and analysis of standardised workplace-health data from employers and providers across the UK, so that workplace health performance becomes visible, comparable and, crucially, actionable, with prevention as the goal.
What data it collects
Based on the government's announcement, the Unit is focused on three things it wants to make measurable and comparable:
- Sickness absence - how much, how often, and how it is changing, captured consistently rather than in the patchy way most employers record it today.
- Return-to-work outcomes - whether people who fall out of work actually come back, and what helped, which is rarely measured at present.
- Disability participation - how well workplaces include and retain people with disabilities and health conditions.
The intent is that this becomes a national data asset: something that enables benchmarking between employers, sectors and regions, and that supports earlier, preventative action rather than only reacting once someone is signed off.
What the WHIU will do: the seven functions
The government's June 2026 progress update, published 3 July and updated 4 August 2026, describes the Unit as "central" to the programme's data work and gives it seven functions. These are the government's own words, lightly formatted:
- Standard setting - "define standardised approaches to measuring and collecting performance data, and health and work-ability data."
- Collection - "gather data from employers and providers across the UK."
- Guardianship - "hold individual health and work-ability profile data securely and manage onward sharing only where consent is given."
- Aggregation - "consolidate data on performance, outcomes and health and work-ability profiles by organisation, sector and region."
- Benchmarking - "provide confidential intelligence back to employers and providers to drive continuous improvement."
- Impact evaluation - "measure the effectiveness of interventions and establish the value-for-money case for new approaches, including digital and AI."
- Evidence-based policy - "translate data insights into proposals and recommendations for government on policy and interventions."
Two of those matter most to a small employer. Standard setting means the definitions of what to measure will be decided nationally, so an employer already recording absence and return-to-work outcomes in a consistent way will have less to change. Benchmarking means the data flows back: an employer that contributes gets confidential intelligence on how it compares. The update also names the route the government is exploring for collecting the data: Work and Health Checks, "introduced at key points across the employment lifecycle", with a phased rollout "starting with larger employers or specific regions".
Source: GOV.UK, Keep Britain Working: the story so far (June 2026), published 3 July 2026 and updated 4 August 2026.
Why it exists
The logic is that you cannot manage what you cannot see. If the government, and employers themselves, can see workplace health performance clearly, then prevention becomes possible: spotting where short-term absence is turning into long-term absence, learning what return-to-work support actually works, and holding the system to account with evidence rather than anecdote. The review frames better data as "the engine for change".
When it is happening
The WHIU is being stood up as an independent "movement HQ" alongside the programme's roughly 200 "Vanguard" employers, who spend a three-year phase testing the approaches that will be scaled. The review's deliverables, including a formal Healthy Working Standard, are targeted for around 2029, with BSI's draft for public comment expected in early 2027, and the exact data model and reporting mechanics are still being worked out. The June 2026 progress update lists the Unit's functions but gives no go-live date. The Society of Occupational Medicine's 2026 guidance expects data from Workplace Health Provision services to flow into the Unit once it is established. It is not yet a live, universal reporting system. That is precisely why now is the moment for employers to get their own measurement in order, before any standardised expectation lands.
What it means for a small employer
Two honest points. First, the immediate pilots lean towards large employers, so a small firm has a little time. Second, the direction is unmistakable: measuring workforce health is moving from optional to expected, and small firms are the least ready because they rarely have occupational health, dedicated HR, or any consistent way to capture this data.
The firms that will find the shift easy are the ones already in the habit of measuring how their people are doing and recording what they did about it. The firms that will scramble are the ones starting from a blank page when a standard, an insurer or a tribunal asks. The cost of building the habit now is close to zero. The cost of building it under pressure later is not.
The gap the WHIU cannot easily fill
A national unit can collect from big employers with HR systems. It will struggle to get consistent data from the millions of people in small firms. That is exactly the segment we work in, and exactly why measuring lightly and consistently now puts you ahead of the curve rather than behind it.
What to do now
Everything the WHIU points to starts from two employer habits: measuring how your people are really doing, and being able to evidence that you are acting on it. You do not need to wait for a standard to start either.
The quickest first step is to find out whether your wellbeing strategy actually runs, or whether it is really just policies on a shelf. Our free 4-minute Strategy Audit scores it against four components and names your single biggest gap. No call, no card.
Read the Keep Britain Working guide
On the measurement itself: our free, non-clinical wellbeing pulse, the Intelligent Wellbeing Engine, is the on-ramp that gives a strategy real signal about workload and support as it rolls out. It is the measurement layer, not a separate purchase.