Interim manager: what does it cost and when should you bring one in?

An interim manager is an experienced executive who takes over a key function in your company for a limited period, typically 6 to 12 months. Expect a daily rate between 1,000 and 2,000 euros excluding VAT for most assignments, and 2,000 to 3,000 euros for a general management role.

Companies call on one in five typical situations: a sudden departure, a crisis, a transformation, growth that outpaces the organisation, or a vacancy while a permanent hire is being recruited.

That is the short answer. The details vary a great deal depending on your situation, so let us take each point in turn.

What exactly is an interim manager?

Neither a consultant nor a temp. A consultant analyses, recommends and leaves. An interim manager takes the role: leading the teams, making the decisions, owning the results. They arrive with a precise mandate, measurable objectives and an end date. An operational executive, not a producer of reports.

That is precisely the difference we stand for at Stratlane: a recommendation that stays in a report has never turned a company around or structured a team.

When should you call on an interim manager?

Five triggers account for almost every assignment.

A sudden executive departure. Your managing director or sales director resigns or is pushed out. A serious recruitment process takes 4 to 9 months. Someone has to hold the role in the meantime, and improvisation is expensive.

A crisis or turnaround. Cash under pressure, the loss of a major client, a social conflict, collapsing results. You need fast decisions, taken by someone who has already been through this kind of situation elsewhere.

A transformation. Reorganisation, post-acquisition integration, digitalisation, a change of commercial model. The existing management runs the day-to-day; the transformation needs a dedicated pilot.

Growth that outpaces the organisation. The company grows faster than its structures: sales still depend on the founder, processes no longer keep up. An interim manager structures, recruits, installs, then hands over.

A vacancy before a permanent hire. You want the time to recruit the right permanent executive without leaving the function unattended. The interim manager bridges the gap, and the assignment often clarifies the profile you actually need.

How much does an interim manager cost in Belgium and France?

According to the France Transition 2025 barometer, daily rates mostly sit between 1,000 and 2,000 euros excluding VAT, with an average client cost of around 1,300 euros per day. About 48% of assignments are billed between 1,000 and 1,500 euros per day. A general management role sits closer to 2,000 to 3,000 euros per day. The Belgian market, built around the same players and profiles, shows comparable ranges.

An assignment lasts around 7 months on average. For a 6-month assignment at 4 days a week and 1,300 euros a day, the total budget comes to roughly 135,000 euros excluding VAT. Not a small amount, so it has to be compared against the right things.

Is it really more expensive than recruiting?

The daily rate always surprises at first glance. The honest comparison is on full cost and on risk.

First, the rate is all-in: no employer contributions, no notice period, no severance, no company car, no bonus. Second, there is no dead time: an interim manager is operational within days, where a newly recruited executive needs months before producing results. Third, the risk is limited by design: if the fit is wrong, the assignment stops, without procedures or litigation.

The real benchmark is the cost of inaction: a sales function without a leader for 8 months, a crisis managed by trial and error, a rushed recruitment that fails. Each of those scenarios usually costs far more than the assignment.

How does an interim assignment unfold?

A serious assignment follows four stages. Scoping: rapid diagnosis, measurable objectives, a clear mandate agreed with the shareholder or CEO. The first 30 days: early decisions, quick wins, urgent matters brought under control. Execution: running the function, leading the teams, regular reporting to management. Handover: documentation, upskilling of the successor, an organised transfer. The assignment only succeeds if the company runs better after the manager leaves than before they arrived.

Frequently asked questions

What is the minimum duration of an assignment? Most run 6 to 12 months. Below 3 months it is hard to produce a lasting effect, except for a very narrow mandate.

Can an interim manager work part-time? Yes. Many SME assignments run at 2, 3 or 4 days a week, which reduces the budget while keeping real leadership in place.

How is this different from a consultant? The consultant recommends; the interim manager executes and carries operational responsibility for the results.

Can the interim manager be recruited afterwards? It is sometimes the right ending, but never the starting objective. Part of the mandate is precisely to prepare the arrival of a permanent executive.

Talk it through

Stratlane provides interim general and commercial management, crisis management and transformation assignments across Belgium, France and Africa, for micro-businesses, SMEs, mid-caps and group subsidiaries. A 30-minute conversation is usually enough to tell whether an interim manager is the right answer to your situation, or not. Contact: info@stratlane.be.

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Sources

- France Transition 2025 barometer, interim management rates and average costs, cited by [Wayden](https://www.wayden.fr/quel-est-le-salaire-dun-manager-de-transition/) - European interim management market trends, [Robert Walters Belgium](https://www.robertwalters.be/fr/management-de-transition.html)