Compression happens because internal increases are calculated as a percentage of what you already earn, while new hires are priced against what it costs to hire today. When market rates move faster than merit budgets, the newcomer's starting number overtakes the tenured employee's. It is a structural result rather than a judgement, and the remedies are a market adjustment, a reclassification, or leaving.
Two pricing mechanisms running at different speeds
Your salary was set at hire against the market of that moment, then grown by a percentage each year. A new hire is priced at what it takes to hire somebody today.
When market rates rise faster than internal increases, the two diverge. That is compression, and it is arithmetic rather than a decision anybody made about you.
Why it persists in well-run organizations
Fixing it costs real money across a whole team at once. Leaving it costs nothing until somebody notices and acts, and most people do neither.
Employer bands are also refreshed annually against survey data that describes a period about a year back, so the structure itself is always slightly behind the market it is trying to track.
Why annual increases cannot fix it
Merit increases are percentages of current salary. A below-market salary generates below-market increases, so the gap widens in absolute terms every year even when the percentage is identical.
Somebody $10,000 behind who receives the same three per cent as everybody else falls further behind each year. Waiting is not a strategy here; it is the mechanism producing the problem.
How to find out whether it applies to you
In pay transparency states, look at what your own employer advertises for roles at your level. That is public, current, and specific to your organization.
Then compare against the published median and seventy-fifth percentile for your occupation in your metro. If the advertised range for your job starts above what you earn, that is a fact rather than an impression.
The conversation to have
Ask for a market adjustment, which is a category separate from merit increases and exists precisely for this. The argument is that your pay reflects the market of your hire date rather than the current one.
That is a factual claim about pricing, not a complaint about fairness or a comment on your performance. Keeping it there is what makes it answerable — and it lets the manager take it upstairs as a structural issue rather than a personal request.
What to bring
The published median for your occupation in your metro. Your employer’s own advertised range for your level. And a brief record of what you have delivered, which is the part that makes advocating for you easy.
Do not bring a colleague’s salary, even if you know it. It changes the subject to how you know and creates a problem for somebody else.
Why employers frequently say yes
Replacing you costs more than adjusting you — recruiting, a market-rate salary for the replacement, and months of lost productivity. A market adjustment is usually the cheaper option and managers know it.
Which is why raising it works more often than people expect. The organization is not defending a position; it simply has not looked.
If the answer is no
Ask what would change it and by when. A defined review with written criteria converts an indefinite wait into a date, and the answer tells you whether the constraint is temporary or structural.
Where the answer is that the band itself sits below market, that is your ceiling and it will not move. Compression of that kind is the most reliable reason an external move outperforms internal progression, and it is worth acting on rather than absorbing.
A worked example of how it opens up
Somebody hired five years ago at $70,000, receiving three per cent a year, now earns about $81,100. Somebody hired into the same role today at the current market rate might start at $88,000.
Next year both receive three per cent. The established person gains $2,433 and the new hire $2,640, so the gap widens by another $200 while the percentages are identical and nobody has done anything wrong.
That is the whole mechanism in one calculation, and it is why the fix has to be a step rather than a rate.
The version that is hardest to see
Compression against people who never joined. If your employer has not hired into your role recently, there is no visible comparison and the gap is invisible until you look outside.
Which is a reason to check the published median for your occupation and metro annually even when nothing has changed internally. The absence of a new colleague is not evidence that your pay has kept pace.
Common questions
Why does this happen?
Internal increases are a percentage of your existing pay; offers are priced against today's market. Nothing compares the two, so in a fast market they diverge.
Is it illegal?
Not in itself. Paying differently for the same work becomes a legal question when the difference tracks a protected characteristic, which is a separate matter from compression.
How should I raise it?
As a market question with a published range attached, not as a fairness complaint about a named colleague. One is answerable and one is not.
What is a market adjustment?
An off-cycle correction bringing someone to the current rate for their role. Many employers have a named process for it, funded separately from merit.
Can I discuss pay with colleagues?
Most private-sector employees in the US have a federally protected right to, and policies forbidding it are generally unlawful. A published range is still the stronger argument.
Why do new hires earn more than established staff?
Your salary was set against the market of your hire date and grown by percentages; a new hire is priced at today's market. The two diverge when rates rise.
Can annual raises close the gap?
No. Merit increases are percentages of current salary, so a below-market salary generates below-market increases and the gap widens in absolute terms.
What should I ask for?
A market adjustment, which is a separate category from merit. The argument is factual — your pay reflects your hire-date market rather than the current one.