Wellbeing investment is working - but can you prove it?
Author: Vernujaa Nagandiram
For most employers, the question is no longer whether to invest in employee wellbeing - it is whether they can prove it is working. As HR budgets face deeper cuts, the ability to measure and articulate wellbeing's value has become as important as the investment itself. How can organisations close the gap between the outcomes they are seeing and the evidence needed to demonstrate and defend wellbeing investment?
The Brightmine Wellbeing Research 2026 highlights both the impact of wellbeing investment and the challenge many organisations face in demonstrating it. Nearly half (49%) of employers report that wellbeing investment has led to higher engagement and morale, while more than a quarter cite improved retention and attraction (27%) and reduced absence alongside better return-to-work outcomes (27%).
Economic uncertainty, cost pressures and tighter budgets mean wellbeing spend is increasingly being tested against organisational priorities. This creates a growing challenge for HR: wellbeing is increasingly expected to justify its value, but many organisations still lack the measurement frameworks needed to do so with confidence.
But though most organisations report positive outcomes, very few have developed a structured approach to measuring them. While more than eight in 10 (84.3%) use employee feedback or survey data to assess wellbeing effectiveness, and almost three-quarters (72.7%) draw on absence, turnover or performance measures, only 10.7% have established dedicated wellbeing KPIs.
In practice this means that most organisations are measuring wellbeing through the data they already have - workforce indicators that exist for other purposes - rather than through metrics designed specifically to capture wellbeing outcomes.
This matters because workforce outcomes are influenced by a wide range of factors. Engagement, turnover and absence rates can shift for many reasons, making it difficult to understand the specific contribution wellbeing initiatives have made. As a result, employers often know something positive is happening but struggle to quantify its impact with confidence.
Why proving value matters more than ever
Economic uncertainty, cost pressures and tighter budgets mean wellbeing spend is increasingly being tested against organisational priorities. HR functions are expected to demonstrate how their people initiatives contribute to broader organisational goals, whether that is improving productivity or supporting growth. This is particularly important given the established link between employee wellbeing and organisational performance. Brightmine's guide on why employers need to invest in employee wellbeing highlights evidence that employee wellbeing influences organisational effectiveness, with implications for performance, retention and workforce sustainability.
The financial consequences of failing to demonstrate value can be significant. Research from Reward Gateway's Bridging the ROI Gap report (2026) found that two-thirds of HR departments have experienced budget cuts in the past 12 months, and organisations unable to evidence ROI reported cuts up to twice as deep as those that could. While these findings relate to HR initiatives more broadly, rather than wellbeing specifically, they illustrate the growing pressure on HR functions to demonstrate the business value of their people initiatives.
Yet demonstrating impact remains a significant challenge. Reward Gateway found that nine in 10 HR professionals struggle to measure the effectiveness of some or all of their people initiatives, with wellbeing programmes the most frequently cited area of difficulty (41%), ahead of employee engagement plans (31%) and recognition initiatives (25%).
This creates a growing challenge for HR: wellbeing is increasingly expected to justify its value, but many organisations still lack the measurement frameworks needed to do so with confidence.
ROI and VOI: Two lenses on wellbeing value
Building a stronger evidence base starts with recognising that wellbeing delivers two kinds of value - and that both need to be captured.
The first is return on investment (ROI). This measures the direct, quantifiable financial return generated by wellbeing initiatives relative to their cost. Using a simple comparison of benefits gained against costs, ROI provides a clear commercial case and is the language most readily understood at board level.
Calculating ROI formula
"Total benefits" is the financial value of outcomes that can be linked to the wellbeing initiative. For example, this might include:
- savings from reduced sickness absence, based on the reduction in days lost and the organisation's average employment cost per day;
- lower overtime or temporary cover costs associated with absence;
- avoided recruitment, onboarding or training costs where improved retention can reasonably be linked to the initiative; or
- the value of additional productive time or output where sufficiently reliable productivity data is available.
"Total costs" should include all relevant expenditure, such as technology and platform costs, external provider fees, training costs, and the cost of employees' time spent developing or delivering the initiative.
The calculation shows the financial return generated for every pound invested.
To use the calculation meaningfully, organisations need a clear baseline (for example, current absence rates, turnover levels or productivity measures), a full understanding of the costs involved and a robust method for attributing any resulting changes to the wellbeing initiative rather than to wider organisational factors.
The second is value on investment (VOI). This captures the broader organisational benefits of wellbeing that may not translate directly into a financial figure, but still contribute meaningfully to performance, culture and long-term business outcomes. Softer outcomes like trust, belonging, employee experience and confidence in management are not always easy to express in pounds and pence; that does not make them less real or less important.
The risk is relying too heavily on one lens. ROI alone can undervalue the full impact of wellbeing; VOI alone can make it harder to defend investment when budgets are under pressure. An effective measurement approach draws on both.
Building stakeholder support for this approach often starts with demonstrating value early and securing organisational buy-in.
Employers looking to secure senior-level support may find our guide on getting initial senior-level buy-in and gathering evidence on wellbeing useful.
What to measure: building your evidence base
The metrics used to evaluate wellbeing should reflect both ROI and VOI outcomes. For most organisations, the challenge is not finding new data, but using existing workforce data in a more structured way to build a stronger evidence base for wellbeing impact.
Metrics commonly used to measure ROI:
| Retention and attrition |
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| Productivity and attendance |
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| Business performance |
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Metrics commonly used to measure VOI:
| Employee experience |
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| Culture |
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| Health and wellbeing |
|
The strongest measurement approaches do not view these metrics in isolation. Instead, they track patterns over time, creating a more credible line of sight between wellbeing investment and organisational outcomes.
Three practical moves to strengthen wellbeing measurement
As wellbeing matures from a valued employee initiative to a strategic business investment, the way it is measured must evolve too.
1. Establish a baseline before you act
Measurement only works if there is a starting point to measure from. Before introducing or expanding a wellbeing initiative, capture baseline data across relevant ROI and VOI metrics. Without this, it is impossible to attribute changes - positive or negative - to wellbeing activity specifically. This is particularly important for absence data, engagement scores and retention figures, which are subject to external factors that can obscure the signal.
2. Strengthen the evidence base
Most organisations already hold much of the data needed to build a stronger evidence base for wellbeing. The challenge is bringing wellbeing and workforce data together in a structured way. Tracking relevant metrics before and after wellbeing interventions can help organisations identify patterns, monitor trends and build a more informed picture of impact, while recognising that multiple factors may influence outcomes.
3. Report in the language of the boardroom
Wellbeing outcomes described solely in people terms may carry less weight with senior leaders than when they are linked to broader organisational outcomes. HR teams that want to protect and grow wellbeing budgets need to present their evidence in terms that connect to business performance metrics, not just people metrics.
Organisations reviewing or refining their approach may also find it useful to revisit their existing strategy and objectives. Our guide on re-evaluating and adjusting the wellbeing plan provides practical guidance on reviewing wellbeing activity over time.
Measurement audit
Use these questions to assess where your current measurement approach is strongest and where it needs development:
- Do you have a baseline for your key wellbeing metrics such as absence, engagement and turnover?
- Are you tracking the specific cost inputs of your wellbeing programmes, including staff time, external provider fees and technology costs?
- Can you identify meaningful relationships between wellbeing interventions and changes in your ROI or VOI metrics - or are you relying on general workforce trends?
- Are your wellbeing outcomes being presented to senior leaders in financial as well as people terms?
- Do you have a defined set of wellbeing KPIs that are reviewed regularly, not just at the point of a budget conversation?
- Are you measuring both short-term outputs, such as participating, and longer-term outcomes, such as absence and retention?
- Can you explain which wellbeing initiatives are delivering the strongest impact - and which need to be reviewed?
If the answer to most of these is no, the priority is not more wellbeing data - it is a framework for proving the value of the activity already in place.
For many organisations, the next stage of wellbeing maturity is ensuring that investment in wellbeing is matched by an equally robust approach to measuring and evidencing its impact.
Want to explore wellbeing measurement further? Read our related resources.
Design a wellbeing programme that can be measured
Creating and implementing your wellbeing plan - Practical guidance on designing and implementing wellbeing initiatives that are aligned to organisational needs and objectives.
Create a clear wellbeing strategy
Generating your strategy and communicating your vision - A guide on developing a coherent wellbeing strategy and communicating priorities, objectives and expectations across the organisation.
Strengthen manager capability
Creating a working environment for good mental health - line manager training - A practical training resource for building manager confidence in the aspects of wellbeing support.
Hear what the latest wellbeing research reveals
Wellbeing that works - what the research tells us - Explore the key findings from the latest wellbeing research and what it means for employers.
