A merit increase is a salary raise based on individual performance. It’s permanent, it compounds over time, and it’s one of the clearest signals a company can send about who it values and why.
Most articles on this topic stop there. They explain the definition, walk through the calculation formula, and move on.
This one goes further — because the mechanics of merit increases are easy. The part most companies get wrong isn’t the maths. It’s the context around the number. A 4% merit raise given to someone who felt invisible all year lands very differently from the same 4% given to someone whose contributions were named and recognised throughout. The raise is the same. The effect on retention, motivation, and trust is not.
This guide covers the full picture: what merit increases mean, how to calculate them correctly, what percentage is fair, how they differ from other types of pay increases, and — the part nobody else covers — how to make merit decisions feel fair to the people receiving them.
Merit increase meaning — the definition
A merit increase (also called a merit raise or merit pay increase) is a permanent salary adjustment given to an employee based on their individual performance, contributions, and achievements. It is not a bonus, not a cost-of-living adjustment, and not an automatic annual raise. It is specifically tied to how well someone performed — and it becomes part of their base salary going forward.
The word “permanent” is the most important part of the definition. Unlike a bonus, which is a one-time payment, a merit increase raises the floor. The employee’s new, higher salary becomes the baseline for all future calculations — future raises, future bonuses, pension contributions, and any benefit tied to base pay. A 3% merit increase awarded this year compounds into every subsequent pay decision for as long as that person works at the company.
This is why merit increases carry more psychological weight than bonuses for most employees. A bonus says: you did well this year and we’re paying you extra for it. A merit increase says: your value to this organisation has permanently increased and your salary reflects that. They are different signals, even when the cash amounts are similar.
How to calculate a merit increase
The calculation itself is straightforward. There are two versions depending on what you need to know.
To find the new salary after a merit increase
New salary = current salary × (1 + merit percentage)
Example: An employee earns £45,000. They receive a 4% merit increase.
New salary = £45,000 × (1 + 0.04) = £45,000 × 1.04 = £46,800
The merit increase amount is £1,800 per year, or £150 per month before tax.
To find the merit increase amount in cash
Merit increase amount = current salary × merit percentage
Example: Same employee, same 4%.
Merit increase amount = £45,000 × 0.04 = £1,800
To find what percentage increase was given
Merit percentage = (new salary − old salary) ÷ old salary × 100
Example: An employee went from £52,000 to £54,080.
Merit percentage = (£54,080 − £52,000) ÷ £52,000 × 100 = £2,080 ÷ £52,000 × 100 = 4%
How merit pools work
Most organisations set a merit pool — a budget expressed as a percentage of total payroll that’s available for merit increases across the whole company. If the merit pool is 3.5% of payroll and the total salary bill is £2,000,000, the organisation has £70,000 to distribute as merit increases.
Managers then allocate within their team’s portion of that pool. A team where most people performed strongly might distribute the pool unevenly — 6% to the standout performer, 2% to solid contributors, 0% to someone who needs improvement — so that the total allocation stays within budget while meaningfully differentiating performance.
The formula for checking whether a team’s allocations fit the pool:
Sum of (each employee’s salary × their merit %) ÷ total team payroll = team’s pool %
If this number exceeds the allocated pool percentage, someone’s merit increase needs to be reduced before the cycle closes.
What percentage merit increase is fair?
There is no universal answer, but there are useful benchmarks.
The typical merit increase in most developed markets ranges between 2% and 6% of base salary. Organisations with generous merit budgets or high-performance cultures may go higher for exceptional performers. Those with constrained budgets may cap increases at 3% regardless of performance — which creates its own problems.
Some rough guidelines by performance tier that most HR professionals use as a starting point:
Exceptional performance — the employee significantly exceeded expectations, delivered results beyond their role scope, or made a measurably outsized contribution. Merit increase: 5–8% or above.
Strong performance — the employee consistently exceeded expectations in their core responsibilities. Merit increase: 3.5–5%.
Meets expectations — the employee delivered reliably against the requirements of the role. Merit increase: 2–3.5%.
Below expectations — the employee did not meet the standard the role requires in one or more areas. Merit increase: 0–1%, or no increase pending a performance improvement plan.
The important caveat: a merit increase should be compared not just to these benchmarks but to inflation. In a year where inflation is running at 4%, a 2% merit increase is effectively a real-terms pay cut for the employee — even if it’s presented as a reward. High-performing employees who receive a merit increase below the rate of inflation tend to update their CVs within six months. The nominal number matters less than what it means relative to the cost of living.
Merit increase vs cost of living increase vs promotion
These three types of pay increase are often confused with each other, and conflating them creates problems — both in how they’re administered and how they’re perceived by employees.
Merit increase vs cost of living (COLA) increase
A cost of living adjustment is an increase to all employees’ salaries to keep pace with inflation or rising living costs. It’s not tied to performance — everyone gets it regardless of how they performed. Its purpose is to maintain the real value of existing salaries, not to reward exceptional work.
A merit increase is individual and performance-based. Two people doing the same job at the same salary can receive very different merit increases — or one can receive one and the other not.
The two are often given at the same time, which causes confusion. If a company gives a 3% COLA and a 2% merit increase to a high performer, the employee may experience this as a 5% raise without understanding the distinction. This matters because the merit component signals something specific about their individual value — it should be communicated separately, not bundled into a single number.
Merit increase vs promotion
A promotion involves a change in role, title, and usually responsibilities. A merit increase is recognition of exceptional performance within an existing role. You can receive a merit increase without being promoted. You can be promoted without receiving a merit increase (though most organisations attach a salary adjustment to promotions).
The key distinction: a promotion says “your role has changed.” A merit increase says “your performance within your current role has been exceptional.” They answer different questions and should be treated as separate conversations.
Merit increase vs bonus — what’s the difference?
The distinction matters more than most people realise.
A bonus is a one-time payment. It does not affect base salary. It does not compound. It does not change the employee’s financial baseline going forward. It recognises a specific achievement, a particularly strong year, or a target hit — and then it’s over.
A merit increase is permanent. It raises the floor. It compounds over time because future raises and bonuses are often calculated as a percentage of base salary — which is now higher.
Example of the compounding effect over five years:
An employee earns £50,000. Company A gives them a £2,000 bonus. Company B gives them a 4% merit increase (also £2,000 in year one).
At Company B, assuming no further increases:
- Year 1: £52,000
- Year 2: £52,000 (merit increase from year 1 still in base)
- Year 3: £52,000
- Year 4: £52,000
- Year 5: £52,000
Total additional earnings over 5 years vs staying at £50,000: £10,000
If Company B gives a 4% merit increase every year on the new base:
- Year 1: £52,000
- Year 2: £54,080
- Year 3: £56,243
- Year 4: £58,493
- Year 5: £60,832
Total additional earnings: significantly more — and the salary gap from Company A widens each year.
This is why employees who consistently receive merit increases accumulate a significant salary advantage over time relative to those who receive bonuses instead — even when the cash amounts feel similar in any given year.
How merit increases connect to performance reviews
Merit increases and performance reviews should be tightly connected — but in many organisations they’re separated by months, administered by different people, and communicate contradictory messages.
The ideal sequence:
1. Performance review — manager and employee review the past period, assess performance against goals and expectations, give and receive specific feedback, and agree on an overall performance rating.
2. Calibration — managers meet to calibrate their ratings across the team, ensuring consistency and fairness. This is where the merit pool is allocated.
3. Merit decision — based on the calibrated performance rating, a merit increase percentage is determined. The increase reflects the performance assessment, not the manager’s budget negotiating skills or their relationship with the employee.
4. Communication — the merit increase is communicated to the employee with a specific explanation of why they received what they received, connected to the performance conversation that preceded it.
The failure mode that’s most common: steps 1 and 4 happen but steps 2 and 3 are opaque. The employee has a performance conversation, receives positive feedback, and then two months later learns their merit increase was 2.5% with no explanation. The gap between “your performance was excellent” and “you received a below-average merit increase” creates confusion, resentment, and — for the employee’s manager — a trust problem that’s very hard to repair.
Merit increases should never surprise employees. If the performance conversation was honest and the merit decision followed logically from that conversation, the number should feel expected rather than arbitrary.
Why merit increases often fail — and what to do about it
Merit increases fail to produce their intended effect — retention of high performers, motivation to perform, trust in the organisation — for a predictable set of reasons.
The recognition gap
The most consistent finding in compensation research is that money motivates when it’s perceived as fair, and fair perception depends almost entirely on whether the person receiving it felt recognised throughout the year — not just at the review.
An employee who received specific, public recognition for their contributions throughout the year, whose effort was named and acknowledged in team meetings and peer channels, and who arrived at their performance review feeling genuinely seen — that person receives a 3% merit increase and thinks: fair. The organisation noticed what I did and rewarded it appropriately.
An employee who did the same quality of work, received little to no recognition throughout the year, felt invisible to their manager and peers, and arrived at their performance review with no sense of how they were perceived — that person receives the same 3% merit increase and thinks: is this all? After everything I did?
The merit increase is identical. The perception of fairness is completely different. And the retention outcome follows from the perception, not the number.
The recency bias problem
Performance reviews — and therefore merit decisions — are systematically biased toward the most recent months of the performance period. Work done in January gets less credit than work done in November, even when the January contribution was objectively more significant.
This is not a character flaw in managers. It’s how human memory works. The solution is not to try harder to remember — it’s to have a system that records contributions throughout the year. A peer recognition platform that logs every kudos, every value acknowledgement, every milestone throughout the year gives managers a timestamped record of what actually happened rather than what they happened to notice recently.
The fairness perception problem
Employees don’t evaluate their merit increase in isolation — they evaluate it relative to what they believe their colleagues received. In organisations where compensation is opaque, this comparison happens on the basis of rumour and assumption, which almost always produces a worse fairness perception than the reality.
The way to address this isn’t necessarily to disclose individual salaries. It’s to make the criteria for merit decisions transparent and to communicate clearly how the performance rating connected to the merit outcome. “Your performance was rated as ‘exceeds expectations,’ which placed you in the top tier of our merit pool and resulted in a 5% increase” is a complete and fair communication. “We’ve reviewed everyone’s performance and are pleased to offer you an increase” is not.
How peer recognition makes merit decisions fairer
The strongest argument for building peer recognition into a compensation process isn’t that it makes employees feel good — it’s that it produces better data for merit decisions.
A manager making a merit recommendation typically has access to their own observations of an employee’s work, whatever is documented in the performance management system, and the employee’s self-evaluation. What they often lack is a systematic view of what the employee’s colleagues actually thought of their work — the contributions that happened outside the manager’s direct line of sight.
Peer recognition addresses this directly. When a team uses a recognition platform throughout the year, the recognition feed becomes a year-round record of what the team noticed and valued. Before a merit review cycle opens, a manager can look at:
What contributions their team members were recognised for by peers — the specific things colleagues named publicly throughout the year, tied to company values. Whether recognition was equitably distributed — whether some team members received consistent peer appreciation and others received almost none. The quality and specificity of the recognition — not just “great job” but named behaviours, specific projects, and particular moments that colleagues valued.
This data supplements the manager’s own observations with distributed intelligence from the people who worked alongside each team member every day. It makes the merit decision harder to reduce to recency bias or personal relationship, and easier to defend to the employee when the decision is communicated.
The second benefit: employees who participated actively in a peer recognition culture throughout the year — giving and receiving specific, public appreciation — arrive at their merit review with a much clearer sense of how their contributions were perceived. The review conversation starts from a more accurate shared understanding. There are fewer surprises. The merit increase feels like a natural conclusion to the year’s conversation rather than an arbitrary judgment.
This is the connection between daily peer recognition and annual merit decisions. They operate on different timescales but they’re part of the same system: a company’s attempt to tell its employees, accurately and consistently, what their contribution is worth.
Merit increase FAQ
What does merit increase mean?
A merit increase is a permanent salary raise given to an employee based on their individual performance and contributions, as assessed during a performance review. Unlike a bonus (which is one-time) or a cost of living adjustment (which applies to everyone), a merit increase is specific to the individual and becomes part of their base salary going forward — compounding into all future pay calculations.
What is a good merit increase percentage?
Most organisations operate with merit pools of 2–5% of total payroll. Within that pool, a good merit increase for strong performers typically falls in the 3.5–5% range. For exceptional performers, 5–8% is not unusual. Whether a specific percentage feels “good” also depends on the rate of inflation — a 3% merit increase in a year of 2% inflation is a real-terms pay rise; the same 3% in a year of 5% inflation is a real-terms pay cut.
What is the difference between a merit increase and a pay rise?
A pay rise is a broad term for any increase in salary — it could be for inflation, for a promotion, for tenure, or for performance. A merit increase is specifically a performance-based pay rise — awarded for exceptional individual contribution rather than applied broadly. Not everyone in an organisation receives a merit increase; a general pay rise might apply to everyone.
How often are merit increases given?
Most organisations run annual merit increase cycles, typically aligned with performance review periods. Some run biannual cycles for fast-growing organisations or roles with rapid skill development. Off-cycle merit increases are sometimes given after an exceptional project, a significant expansion of responsibilities, or to correct a compression issue where an employee’s salary has fallen behind market rate.
Does everyone get a merit increase?
No — and this is by design. A merit increase that goes to everyone regardless of performance is effectively a cost of living adjustment with extra steps. The value of a merit increase as a retention and motivation tool comes specifically from its connection to individual performance. Employees who significantly exceeded expectations should receive meaningfully more than those who met them, and those who fell short of expectations should typically receive nothing.
Can a merit increase be reversed?
Once awarded, a merit increase is permanent — it becomes part of the employee’s base salary and cannot be reduced without legal implications in most jurisdictions. This is one reason organisations are cautious about merit increase percentages: the decision compounds permanently. It’s also why the connection to a documented performance review is important — it creates a defensible paper trail for the decision.
The bottom line on merit increases
Merit increases are one of the most powerful retention tools available to any organisation — not because the money is always exceptional, but because they signal something specific: we assessed your individual contribution, we compared it to everyone else’s, and we decided yours was worth more.
That signal lands best when it comes at the end of a year where the employee already felt recognised. The merit increase is the formal, financial confirmation of appreciation that should have been building in smaller, more frequent moments throughout the year — the peer kudos in Slack, the shoutout in the team meeting, the specific feedback in the 1:1 that named what the person did rather than just that they did it well.
When companies treat recognition and compensation as separate systems, merit increases often feel arbitrary. When they’re connected — when the peer recognition data from the year informs the merit conversation, when the manager can point to specific contributions that colleagues named publicly — the increase feels earned, fair, and worth staying for.
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