Feeling Illegitimate After a Promotion

It surprises everyone who lives it: the doubt sets in not after a failure, but after recognition. Three weeks into the new title, with nothing negative having happened, the person is convinced a mistake was made about them and that time will prove it.

Those around them are little help, because the reply is almost always the same: "but you deserve it". That sentence, however sincere, has no effect — it is about the past, whereas the doubt is about what comes next.

Let us restate it, because it is regularly put badly: impostor syndrome is neither a diagnosis nor an illness. It appears in no medical classification. It is a subjective experience, described in 1978 by Pauline Clance and Suzanne Imes in objectively high-performing people.

In the article that follows, I explore legitimacy doubt after a promotion or a step up in responsibility. If you recognise yourself in this theme, the tests on the platform help you take stock.

You didn't move up a notch: you changed occupation

This is the point almost nobody states clearly at the moment of appointment, and it explains most of the rest.

An excellent developer promoted to team lead, a nurse becoming a ward manager, a salesperson becoming regional director: in all three cases, what earned the promotion — technical mastery, individual output — is no longer part of the job. Or rather, it forms so small a part that it can no longer be used to judge the day.

The new occupation rests on distinct skills: deciding without full information, saying no, delegating work you would do better yourself, holding a difficult conversation, shielding a team from pressure coming from above. Nobody is good at those in year one. It is a craft, and it is learned.

In this context, the feeling of illegitimacy is therefore not entirely a distortion. It describes something real: you are a beginner. What is false isn't the observation of inexperience — it is the conclusion drawn from it.

"I can't do this yet" is not "I don't belong here"

Everything hangs on that distinction, and it is more workable than it looks.

The first is checkable and datable: it will be false in six months. The second can be neither proved nor disproved, and that is exactly what makes it inexhaustible.

A simple exercise: every time the second wording appears, stop and require a translation into the first. When translation proves impossible, it usually means the statement carried no information about the work at all.

Former peers who are now reports

This is the most concrete difficulty, and it is real — not psychological.

The relationship changes nature overnight, without anyone having asked for it. You now hold information you can no longer share, an opinion of their work that carries weight, and sometimes a say in their pay. Some pull back. Another, who applied for the same role, will say nothing but won't help you either.

Three useful observations.

The discomfort you feel is not evidence of usurpation. It comes from a change of social position that is inherently uncomfortable — it would be for anyone. Wanting to stay "the same as before" is the main trap. It produces ambiguous instructions, delayed decisions and uneven treatment along lines of friendship — which is precisely what damages a team's trust. What settles a team is not closeness, it is predictability. Stated criteria, explained decisions, a stable position. A team copes very well with a beginner manager. It copes badly with an unpredictable one.

What the first six months do

Bandura showed that a sense of self-efficacy rests above all on mastery experience: having done something and seen that it worked. In a management role, that experience is delayed by months.

A manager's work produces indirect, deferred effects: a team that steadies, a conflict that doesn't escalate, a project that moves without you. None of that is visible week to week. While the evidence accumulates slowly, doubt feeds daily.

Hence a fairly regular timeline: a peak of illegitimacy between months one and three, a dip around month four — often after the first difficult decision genuinely held — then stabilisation around month six. The first ninety days in a new role have their own logic.

One thing helps more than any other in this period: keeping a dated record of what was decided and what came of it. Not to grade yourself, but because memory keeps only the moments of hesitation.

Perfectionism costs more in this role

Hewitt and Flett distinguish self-oriented perfectionism from socially prescribed perfectionism — the sense that others expect flawlessness of you. The second is triggered heavily after a promotion, because the appointment is public.

In an expert role, perfectionism has a payoff: it produces good work. In a management role, it mostly produces slowness, withheld decisions and difficulty delegating — since delegating means accepting that the work will be done differently, and often less well at first.

It is one of the rare cases where a previous strength becomes, unchanged, an obstacle. Seeing it as a shift of occupation rather than a personal flaw completely changes what can be done with it.

What the record shows — and above all what it contradicts

The trouble with legitimacy doubt is that it cannot be settled from the inside: the person assessing and the person being assessed are the same, with the same filters.

That is the second purpose of ScanMyJob, and the most useful one in this precise situation. Working from your real professional correspondence, the record highlights what contradicts your reading as much as what confirms it. Many new managers find elements there they had never counted: the sensitive files that reach them first, arbitration requests coming from other departments, one of their own phrasings reused verbatim by senior management, the frequency with which their opinion is sought.

These are not compliments: they are dated behaviours, and they cannot be manufactured. The gallery of examples shows four real records, including cases where the record says the opposite of what the person expected.

The other side matters just as much: sometimes the record confirms a difficult environment. A promotion with no real scope, no resources, or designed to fill a post nobody wants, produces a perfectly well-founded feeling of illegitimacy. That hypothesis deserves serious examination.

What this article does not do

It makes no diagnosis — there is nothing to diagnose, this is not an illness. It does not tell you whether you belong: nobody can judge that from a text, least of all three weeks after an appointment.

It does not replace professional advice. If the new role comes with durably disrupted sleep, constant apprehension, or exhaustion that doesn't lift at weekends, that is an occupational health matter, and such services can usually be consulted directly, without going through your line management.