Differentiated merit increase strategy: how to make it stick without breaking pay equity
TL;DR
- Treat the merit increase pool as scarce capital, not a flat entitlement, and lock in executive rules for how much goes to each performance band.
- Redesign calibration and performance reviews so they generate decision-grade data that can credibly support differentiated salary increases.
- Use a 60/30/10 style merit distribution with guardrails, pre-cycle simulations, and pay equity audits to avoid amplifying historical bias.
- Turn merit from an HR ritual into an executive instrument by reporting outcomes like any other capital allocation decision.
- Support managers with concrete scripts, FAQs, and a simple merit matrix so they can explain performance-based pay decisions without retreating to flat raises.
Why differentiated merit keeps dying in the last meeting
Most organisations say they want a differentiated merit increase strategy. When the merit process finally runs, though, the merit increases quietly flatten into a polite 2 to 3 percent for almost all employees, regardless of employee performance or business impact. The gap between stated performance-based intent and actual pay increases is not a tools issue.
Compensation management teams revert to flat merit for three political reasons. First, managers fear the conversation cost of explaining why some employees receive a lower salary increase, so they lobby for equal pay raises in calibration and behind closed doors with HR business partners. Second, executives worry that visible differentiation in pay decisions will trigger noise about pay equity, even when the underlying data supports performance-based variation in rewards.
The third reason is that compensation leaders themselves often lack air cover when the merit matrix gets challenged. A differentiated merit increase strategy exposes the compensation function, because every merit pay decision for top performers and low performers becomes a potential escalation to the CEO or the board. Under that pressure, even sophisticated companies with strong performance reviews and robust data quietly smooth the merit matrix until the distribution of raises looks almost flat.
Look at how many organisations still treat the merit budget as a cost to be spread, not an investment to be allocated. Mercer’s 2023–2024 global compensation planning research, based on surveys of several thousand employers across regions and industries, reports that roughly 80 to 85 percent of employers plan to keep salary increases relatively flat across most of their workforce, even while talking about performance-based differentiation in town halls and investor calls. That pattern tells you this is a political problem inside the compensation team, not a lack of global payroll systems or analytics dashboards.1
For a CHRO, the first move is to reframe the conversation about merit raises as a capital allocation decision. When you position the merit increase pool as scarce capital that must be directed toward high performers and critical skills, you change the burden of proof for managers who argue for across-the-board pay raises. The differentiated merit increase strategy then becomes a governance question, not a feel-good exercise in employee engagement.
That governance lens also clarifies why a simple merit matrix is not enough. A matrix that links performance review ratings and position in range to specific pay increases is necessary, but it does not solve the political resistance to real differentiation. To get there, you need explicit executive agreements on how much of the budget will go to top performers, how much to solid performers, and how much to employees who are not meeting expectations.
Without those agreements, managers will continue to game the merit process. They inflate performance reviews to justify higher salary increases, or they split the difference so that every employee receives a similar pay raise regardless of actual performance. The result is a compensation management system that signals performance-based pay on paper but delivers tenure-based pay in practice.
There is also a hidden compliance angle that makes leaders nervous. When you concentrate pay increases on a subset of employees, you increase the risk that historical inequities in employee performance ratings and opportunity access will show up as new gaps in pay equity analyses. That fear often pushes compensation teams back toward flat pay raises, even when the company is losing top performers to competitors who pay aggressively for performance.
To break that cycle, you need to treat the differentiated merit increase strategy as a change management program. That means preparing managers with scripts, FAQs, and examples for explaining why some employees receive higher merit raises than others, and why some employees may receive no salary increase at all. It also means setting clear expectations that managers will use the merit matrix and not override it without a documented business case.
Finally, you must connect the merit process to visible business outcomes. When executives see that targeted pay increases for top performers in a critical product team reduce regretted turnover and protect revenue, they become more willing to defend differentiation. When they see that flat pay raises lead to the quiet exit of high performers and the retention of low performers, the political calculus inside the compensation function starts to shift.
Fixing the performance data problem without hiding behind it
Every differentiated merit increase strategy lives or dies on the quality of performance data. Many managers claim their performance reviews are too soft or inconsistent to support sharp differences in merit pay, and they are often right about the inconsistency. That does not mean you should abandon performance-based pay increases and retreat to equal salary increase percentages for all employees.
The real issue is that most organisations run performance reviews as a compliance ritual, not as a decision-grade input to compensation. Ratings are inflated to avoid conflict, comments are vague, and calibration sessions become political theatre where managers trade one high rating for another to protect their own team. In that environment, any merit matrix that ties pay raises tightly to employee performance will feel arbitrary and unfair.
Redesigning calibration is the fastest way to upgrade the merit process. Instead of asking managers to defend every rating, ask them to identify their top performers and bottom performers first, then force rank within those groups based on specific, recent outcomes. Link those discussions to documented goals and to the evidence on how goal setting affects stress and performance, such as the research summarised in this analysis of the impact of goal setting on employee stress levels, and you move the conversation from personality to results.
Once you have a clearer view of employee performance, you can apply a differentiated merit increase strategy with more confidence. For example, you might decide that employees in the top performance review category receive merit increases at 150 percent of the company average, while solid performers receive 80 percent and low performers receive zero. That structure makes the link between performance-based outcomes and pay increases explicit, and it also protects the budget for critical talent.
However, you cannot stop at ratings and percentages. A credible merit matrix also needs guardrails for pay equity and internal relativities, so that two employees with similar performance and tenure do not end up with wildly different salary increase outcomes. That means using data from your compensation management system to check for outliers in pay decisions before they hit global payroll, and sending those cases back to managers for justification.
One practical tactic is to require a written rationale for any pay raise that deviates from the standard merit matrix by more than a set threshold. Managers quickly learn that they can still make exceptions, but only when they can explain how the pay raise aligns with employee performance, market data, and the company rewards philosophy. Over time, this discipline reduces random increases and channels more of the merit budget toward genuine top performers.
Another tactic is to separate the conversation about promotions from the conversation about merit raises. When managers use promotions as a workaround to secure higher pay raises for favourite employees, the merit process becomes distorted and the salary increase distribution loses its link to performance. Clear rules about when a promotion is warranted, and how promotion increases interact with merit increases, keep the compensation structure coherent.
Calibration sessions also need better facilitation. Many HR business partners let managers dominate the room with anecdotes about individual employees, instead of steering the discussion back to comparative performance and business impact. Training facilitators to ask for specific examples, to reference objective data, and to challenge inflated ratings is a low-cost way to improve the quality of pay decisions.
Finally, connect performance reviews to other signals of employee performance, such as sales results, project delivery metrics, or customer satisfaction scores. No single metric should dictate merit pay, but a triangulated view makes it harder for managers to justify equal pay raises for all employees in a team with clearly differentiated outcomes. When performance data becomes a shared asset rather than a private narrative, the differentiated merit increase strategy stops feeling like a gamble and starts looking like disciplined compensation management.
Using the 60/30/10 model without blowing up pay equity
The 60/30/10 concentration model is one of the cleanest ways to operationalise a differentiated merit increase strategy. In this design, roughly 60 percent of the merit budget goes to the top 30 percent of performers, 30 percent of the budget goes to the middle 50 percent, and the remaining 10 percent covers the bottom 20 percent of employees. It is a blunt instrument, but it forces a real conversation about who truly drives performance and deserves the largest pay increases.
When you apply 60/30/10 through a merit matrix, the numbers get very real very quickly. Top performers might see merit increases of 5 to 7 percent, while solid performers receive 2 to 3 percent and low performers receive zero or a token 0.5 percent salary increase. That pattern creates visible differentiation in pay raises, and it also creates visible tension in teams where managers have been used to spreading the budget evenly.
The political risk is obvious. Managers worry that concentrating merit raises on a subset of employees will damage morale and collaboration, especially in interdependent teams. Employees in the middle performance bands may feel that their steady contributions are undervalued, while employees at the bottom may feel written off, even if the company offers development plans and non-financial rewards to support improvement.
The legal and ethical risk is more subtle but just as serious. If your performance-based ratings reflect historical bias, then a 60/30/10 model can amplify pay equity gaps across gender, race, or age groups. That is why any differentiated merit increase strategy must be paired with rigorous pay equity analysis before and after the merit process, not as an afterthought once pay decisions are already in global payroll.
One practical safeguard is to run a pre-cycle simulation of the 60/30/10 model. Ask your analytics team to apply the proposed merit matrix to last cycle’s performance review data and current salary levels, then analyse the projected impact on pay equity and on the distribution of pay raises by demographic group. This is the simulation every CHRO should demand before signing off on a new merit process design.
Another safeguard is to set explicit floors and ceilings for merit raises within each performance band. For example, you might cap merit raises for already high-paid top performers at a certain percentage, while guaranteeing a minimum pay raise for solid performers who are materially below market. These rules keep the differentiated merit increase strategy from turning into a runaway reward for a small elite, while still directing more of the budget toward high-impact employees.
Executive sponsorship is non-negotiable here. When the CEO and CFO understand that a concentrated merit increase model is a retention lever for critical talent, not just a cost, they are more likely to defend it when managers complain. Linking the discussion to external benchmarks, such as Mercer’s findings that most employers still spread merit budgets relatively flat, helps frame the differentiated approach as a competitive advantage rather than a risky experiment.
Communication also matters more than most compensation leaders admit. Employees do not need to see the full merit matrix, but they do need to understand that pay raises are based on a combination of employee performance, market data, and internal equity. When you explain that the company is deliberately investing more of the merit budget in top performers and critical skills, you set expectations and reduce the shock when increases differ across the team.
Finally, remember that 60/30/10 is a starting point, not a religion. Some business units may need a different distribution because of market conditions, talent scarcity, or recent restructuring, and your compensation management framework should allow for that nuance. The point is not to worship a ratio, but to break the habit of treating the merit increase pool as a flat entitlement rather than a strategic tool.
Turning merit from an HR ritual into an executive instrument
If you want a differentiated merit increase strategy to survive contact with reality, you must reposition merit as an executive instrument. That starts with the CHRO owning the narrative that merit increases are one of the few recurring levers the company has to align pay with performance and strategy. When merit pay is framed as a strategic lever, not an annual HR task, executives pay attention to how the budget is used.
One way to shift that mindset is to present merit outcomes the same way you present other capital allocation decisions. Show the board how much of the merit budget went to top performers in revenue-generating roles, how much went to critical enablers in technology or operations, and how much went to employees with low or inconsistent performance. Then link those pay decisions to retention outcomes, promotion rates, and business results over the following cycle.
Data storytelling matters here. Executives do not need to see every line of the merit matrix, but they do need to see patterns in pay raises across teams, levels, and demographic groups. When they see that one manager consistently gives higher salary increases to their own team regardless of employee performance, or that another manager uses the full range of merit raises to reward high performers, they start asking better questions about leadership quality.
To support that level of insight, your compensation management infrastructure must be clean and integrated. That means linking performance review data, pay decisions, and actual payments in global payroll, so that you can trace every merit increase from rating to bank account. It also means educating finance and audit colleagues on how the merit process works, so that they can help test for consistency and pay equity rather than treating merit as a black box.
Transparency with employees can go further than most organisations currently allow. You do not need to publish individual salaries, but you can publish the principles that guide merit increases, the typical range of pay raises by performance band, and the safeguards you use to protect pay equity. When employees understand the rules of the game, they are more likely to accept differentiated outcomes, even when their own salary increase is modest.
Linking merit to other elements of total rewards also strengthens the signal. For example, you might align higher merit raises with higher long-term incentive opportunities for top performers, while using one-time bonuses to recognise short-term achievements for employees who are already at the top of their salary range. This integrated approach prevents the merit process from becoming the only channel for rewards, which reduces pressure to inflate every pay raise.
Another underused tactic is to connect merit outcomes to everyday pay literacy. Many employees do not fully understand how their pay is structured, how year-to-date figures on their payslip relate to merit increases, or how their salary compares to market benchmarks, and this guide to understanding YTD in your paycheck is a useful example of the kind of education that can support more informed conversations. When employees are more fluent in compensation concepts, managers can have more honest discussions about why a particular pay raise makes sense in context.
Finally, treat each merit cycle as an experiment with a feedback loop. After the cycle closes, review where the differentiated merit increase strategy worked, where it met resistance, and where it may have created unintended pay equity issues. Then adjust the merit matrix, the calibration process, and the communication plan for the next cycle, instead of locking into a static design that slowly drifts back toward flat increases.
Over time, this iterative approach turns merit from an annual argument into a disciplined management practice. Executives start to see the merit process as a way to reinforce strategy, managers learn that pay decisions are scrutinised and supported, and employees see that performance-based rewards are real rather than rhetorical. That is how a differentiated merit increase strategy becomes not another merit matrix, but an actual retention lever.
Key figures on differentiated merit and performance-based pay
- Mercer’s annual Global Talent Trends and compensation planning studies, which typically survey several thousand employers worldwide each year, consistently report that around 80 to 85 percent of surveyed organisations plan to keep merit budgets spread relatively flat across most employees, even while average planned salary increases remain around 3 percent. This highlights the gap between stated differentiation goals and actual pay decisions.1
- WorldatWork’s ongoing “Salary Budget Survey” series, based on responses from hundreds to more than a thousand organisations per cycle, shows that organisations with strong links between performance reviews and merit pay are significantly more likely to report higher retention of top performers, with some studies indicating up to 20 percent lower regretted turnover in critical roles when pay raises are clearly tied to employee performance.2
- Analyses by large consulting firms such as Mercer and Willis Towers Watson, drawing on multi-country employer panels and longitudinal pay data, consistently find that the majority of merit budgets, often 50 to 70 percent, are still allocated to the broad middle of performers, rather than being concentrated on high performers through a deliberate merit matrix or 60/30/10 style model.3
- Research on pay equity audits, including multi-year reviews of companies that run structured pre- and post-merit cycle analyses, indicates that organisations using systematic pay equity checks can reduce unexplained pay gaps by several percentage points over a three-year period, demonstrating that differentiated merit increases can coexist with stronger pay equity when supported by robust data and governance.4
Sample merit matrix and manager scripts for performance-based pay conversations
To make a differentiated merit increase strategy operational, you need a simple merit matrix and practical language managers can use in pay conversations. The example below assumes an overall merit budget of 3 percent of base pay and uses performance ratings on a five-point scale.
Illustrative merit matrix (by performance rating and position in range)
- Rating 5 – Exceptional performance
- Below midpoint of range: 5.0–6.0 percent increase
- Around midpoint: 4.0–5.0 percent increase
- Above midpoint: 3.0–4.0 percent increase
- Rating 4 – Strong performance
- Below midpoint: 3.5–4.5 percent increase
- Around midpoint: 2.5–3.5 percent increase
- Above midpoint: 2.0–3.0 percent increase
- Rating 3 – Solid performance
- Below midpoint: 2.0–3.0 percent increase
- Around midpoint: 1.5–2.5 percent increase
- Above midpoint: 1.0–2.0 percent increase
- Rating 2 – Inconsistent performance
- All positions in range: 0–1.0 percent increase, typically reserved for critical retention cases
- Rating 1 – Unsatisfactory performance
- All positions in range: 0 percent increase, with a documented performance improvement plan
Example calculation: An employee with a base salary of 60,000, rated “4 – Strong performance” and positioned slightly below the midpoint of the range, might receive a 4.0 percent merit increase. That translates into an annual salary increase of 2,400, bringing base pay to 62,400. A peer at the same salary but rated “3 – Solid performance” might receive a 2.5 percent increase, or 1,500, creating a clear but explainable difference tied to performance.
Manager script 1 – Explaining a higher-than-average merit increase
“This year, we are using a more differentiated merit process that links increases directly to performance and market position. Your results were in the top group for your role: you exceeded your goals in revenue impact and project delivery, and you consistently took on critical work. Based on that, your merit increase is X percent, which is above the company average. We are deliberately investing more of the merit budget in people who have the strongest impact, and your increase reflects that contribution.”
Manager script 2 – Explaining an average or modest merit increase
“Our merit budget is limited, so we are focusing the largest increases on the highest performance and the scarcest skills. Your performance this year met expectations: you delivered on your core goals and maintained solid quality, which is important. Your merit increase is Y percent, which is in the middle of the range for your performance band. If you want to move toward the higher end of the range next cycle, we should agree specific stretch goals and behaviours that would demonstrate a stronger impact.”
Manager script 3 – Explaining a zero or very low merit increase
“We are using a merit framework that ties increases closely to performance and position in the salary range. This year, your results were below the expectations we set, particularly in [specific goals or behaviours]. Because of that, your merit increase is Z percent, which is at the low end of the range for your rating. I know that is disappointing. Our focus now is on your development plan: if we can address these gaps and you meet or exceed expectations over the next cycle, you will be eligible for a different outcome in the next merit review.”
These kinds of concrete explanations, backed by a visible merit matrix and clear performance criteria, reduce the temptation for managers to smooth increases and help a differentiated merit increase strategy survive the final calibration meeting.
Frequently asked questions about differentiated merit increases
How do we stop differentiation from damaging team morale? Anchor conversations in clear goals, explain how pay decisions support business priorities, and pair lower increases with development plans rather than silence.
What if our performance ratings are not reliable enough? Use calibration to focus on relative impact, require evidence for top and bottom ratings, and treat the first cycle as a baseline you will refine rather than a perfect system.
Can we still protect pay equity while using a 60/30/10 model? Yes, if you run pre- and post-cycle pay equity analyses, challenge outliers, and adjust ratings or increases where unexplained gaps appear.
How do we convince executives to back a differentiated merit strategy? Show before-and-after metrics on regretted turnover, critical role retention, and the share of the merit budget going to top performers, and compare those results with external benchmarks.
Notes
1 Mercer, Global Compensation Planning and Global Talent Trends studies, 2023–2024 editions.
2 WorldatWork, Salary Budget Survey series, multi-year global and regional reports.
3 Mercer and Willis Towers Watson, longitudinal merit and pay-for-performance analyses across multi-country employer panels.
4 Various employer pay equity audit case studies and consulting firm research on unexplained pay gaps over multi-year periods.
