Pay compression is one of the most common : and most damaging : compensation problems in European organisations. It happens when the salary gap between junior and senior employees narrows over time, often to the point where a new hire earns nearly the same as a colleague who has been with the company for five years. Until now, most companies could keep this quiet. The EU Pay Transparency Directive is about to change that.

This guide explains what pay compression is, why it develops, how to diagnose it in your own organisation, and what to do about it before salary disclosure requirements force the conversation in public.

What Is Pay Compression?

Pay compression (also called salary compression) occurs when there is little meaningful difference in pay between employees at different seniority levels, experience levels, or job grades. In a healthy compensation structure, a senior professional earns noticeably more than a junior in the same role : typically 30–60% more at the median, depending on the function and market. When that gap closes to 10–15%, compression has set in.

Pay compression takes several forms:

Why Pay Compression Happens

Pay compression rarely develops overnight. It accumulates gradually through a set of predictable mechanisms that most HR teams recognise individually but seldom address together.

External market salaries rise faster than internal merit budgets

When talent markets tighten, hiring salaries for in-demand roles rise quickly. If your merit cycle delivers 3–4% annual increases to existing staff while the market for the same role moves 8–10%, internal salaries fall behind within two to three years. The result: a new hire today earns as much as someone who joined four years ago and has received raises every year.

Hiring managers override grade midpoints to close candidates

When a top candidate expects a salary above your standard band, the hiring manager often negotiates an exception. This is sensible on a case-by-case basis. Done repeatedly across a team or function, it pulls new-hire salaries above what incumbents in the same grade earn : a classic trigger for compression.

Salary bands are not refreshed to reflect the market

Many organisations set salary ranges, then leave them static for two, three, or even five years. The band that was correctly positioned at the 50th percentile in 2021 may sit at the 30th percentile in 2026. Internal salaries anchored to that band quietly become uncompetitive, and the gap between the lowest and highest grades compresses.

Regulatory minimum wage increases compress the lower end

As statutory minimum wages rise across the EU : Spain raised its minimum wage by 54% between 2018 and 2024 : salaries for entry-level roles are pushed up by law. If the salary structure above those entry-level roles is not adjusted accordingly, the entire lower half of the pay hierarchy compresses.

What TalentUp Data Shows About Compression in Practice

To illustrate how compression appears in real salary data, here are the 2026 median gross annual salaries for Software Engineers in Spain and Germany, drawn from the TalentUp Salary Platform (data retrieved 15 June 2026).

Software Engineer salaries in Spain : 2026

The compression is visible immediately. The top-earning junior (P75: €32,800) earns virtually the same as the median senior (P50: €37,300), and more than the median mid-level engineer (P50: €32,400). A senior Software Engineer earns only 37% more at the median than a junior : in a role where the skills and output gap between those two levels is enormous.

Software Engineer salaries in Germany : 2026

Germany shows a similar pattern. The junior P75 (€48,500) sits above the mid median (€48,400). The senior median (€54,900) is just 35% above the junior median (€40,500). Both markets show meaningful range overlap between seniority levels : a hallmark of structural compression in action.

For an HR or C&B leader, these numbers tell a clear story: if your internal salary structure mirrors market medians without accounting for the overlap, your top juniors and average mid-levels are effectively paid the same. That is difficult to justify, and it is even harder to justify once pay transparency rules require you to publish salary ranges.

Why the EU Pay Transparency Directive Makes This Urgent

The EU Pay Transparency Directive requires employers across all EU member states to disclose salary ranges in job postings and to provide employees with information about their pay and the pay criteria used to set it. For companies with 150 or more employees, joint pay assessments will be required if a gender pay gap of more than 5% is found.

What this means for pay compression specifically is significant. When employees can see salary ranges : and when candidates can see them before they apply : compression becomes impossible to hide. An existing senior engineer who discovers that a newly posted junior role offers a salary close to their own has every reason to ask why, to escalate to HR, and to look elsewhere.

The reputational and retention risk is substantial. Organisations that have allowed compression to build over years will face it all at once when transparency rules take effect. Fixing compression proactively, before disclosure is mandatory, gives HR teams control over the narrative and the timeline.

How to Diagnose Pay Compression in Your Organisation

Before you can fix compression, you need to measure it. A structured diagnosis covers four areas:

1. Calculate your compa-ratios by grade

A compa-ratio compares an employee’s actual salary to the midpoint of their salary band: compa-ratio = actual salary ÷ band midpoint × 100. A ratio of 100 means the employee sits at the midpoint. Ratios above 120 for junior grades and below 80 for senior grades are a signal of compression. Run this analysis across your entire population grouped by grade.

2. Map range overlap between adjacent grades

Calculate how much of each salary band overlaps with the band below it. More than 30–40% overlap between adjacent grades is a common threshold for concern. At 60% or more, the bands are effectively merged and the pay structure no longer reflects meaningful career progression.

3. Compare new-hire salaries to tenured employees in the same grade

Pull all employees in the same job grade and flag those hired in the last 12 months versus those with three or more years in grade. If recent hires consistently earn more than tenured employees at the same level, you have a hiring-driven compression problem. This is the variant most likely to trigger retention exits among your experienced staff.

4. Benchmark against current market data

Compare your internal band midpoints to current market data for the same roles in your target markets. Bands that are more than one year old should be treated as suspect. Use tools like the TalentUp Salary Platform to get current percentile data by role, country, seniority, and company size.

How to Fix Pay Compression

Fixing compression requires a structured approach and, in most organisations, a multi-year commitment. There is no single budget cycle that will resolve it entirely.

Refresh your salary bands with current market data

Start by rebasing all salary ranges against current market benchmarks. For roles where the market has moved significantly, the new bands will create automatic visibility into which employees are below the updated range minimum. Bring those employees up to the new floor as a first priority : employees below band minimum represent both a legal risk under Pay Transparency rules and an immediate flight risk.

Build a dedicated compression correction budget

Merit budgets distribute increases across the full population. Compression corrections should be funded separately : otherwise you end up robbing retention budget from high performers to fix structural problems. Most organisations allocate 0.3–0.8% of payroll annually to structural corrections. Larger corrections may require phased delivery over two to three years.

Widen salary band ranges or add in-grade steps

If your bands are too narrow, progression through a grade offers no meaningful pay movement. Consider widening ranges to allow 50–60% from minimum to maximum within a grade, or introducing in-grade steps (e.g. developing, performing, exceeding) that create legitimate pay distinctions without requiring a grade change.

Apply stricter hiring controls at the top of bands

New-hire salaries above the band midpoint should require explicit approval with documented justification. Systematic exceptions are a policy failure, not a talent success. If your band midpoints are consistently below what candidates expect, the root cause is an out-of-date band structure : fix the structure, not the exception process.

Communicate transparently with your workforce

If you are running a multi-year compression correction, communicate the plan and the criteria to affected employees. Employees who understand they are on a corrective trajectory are more likely to remain patient than those who discover pay gaps with no explanation. This is especially important in light of Pay Transparency requirements, which will give employees the right to ask for explanations.

Frequently Asked Questions

What is the difference between pay compression and pay inequity?

Pay compression refers to a structural narrowing of the salary gap between seniority levels or grades, regardless of employee demographics. Pay inequity refers to unjustified pay differences between groups : most commonly by gender. Both problems often exist simultaneously, and a pay equity audit will usually surface compression as a contributing factor. They require different but complementary remediation strategies.

How quickly does pay compression build up?

In markets where hiring salaries are rising faster than merit budgets : as has been the case in tech and digital roles across Europe from 2020 to 2024 : meaningful compression can build within two to three years. In more stable markets, it typically accumulates over five to seven years of static band structures.

Will the EU Pay Transparency Directive force companies to fix pay compression?

Not directly. The Directive requires transparency, not pay equity across grades. However, it does require employers to provide salary range information in job postings and to justify pay differences to employees who request an explanation. Where the justification for a wide range overlap between seniority levels is weak, companies will face difficult conversations. Fixing compression before disclosure rules take full effect is strongly advisable.

Can fixing pay compression trigger equal pay claims?

Proactive correction of pay compression reduces equal pay risk rather than creating it. If your correction involves giving salary increases to women at a higher rate than men to address compression-related gender pay gaps, document the rationale carefully. Consult legal counsel when designing the correction programme if your workforce exceeds 250 employees and you operate in multiple EU jurisdictions.

How do I prioritise which employees to correct first?

Prioritise in this order: (1) employees below band minimum : these represent policy violations and legal risk; (2) employees in grade for three or more years earning less than recent hires in the same grade : high retention risk; (3) employees at or above band maximum with no grade progression path : flight risk and potential equity issue. Address each group with a dedicated budget line.

Further reading: Audit Salary Bands: A Practical Guide for HR and Compensation Leaders, Mastering Pay Equity: Leveraging Data to Close the Gap, and How to Build a Compensation Philosophy That Is Pay Transparency Directive Ready.

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