What Is an Interim CEO? Definition, Duration, Cost (2026)
An interim CEO is an experienced chief executive appointed for a defined period, usually three to eighteen months, to run a company through a leadership gap, a crisis, or a transaction. They hold full line authority and are accountable to the board for agreed outcomes, then hand over.
The short answer
An interim CEO is a chief executive hired for a fixed period rather than permanently. The appointment is formal: the board resolves it, the mandate is written, and the interim CEO takes the same authority and accountability as a permanent chief executive for the duration.
When boards appoint one
- The CEO resigns, is removed, or is unable to serve
- A financial or operational crisis needs decisions in weeks, not quarters
- A permanent search will take six to nine months and the business cannot drift
- A sale, carve-out, or post-merger integration needs an operator with no internal history
- A founder is stepping back and the company needs professional management before the next hire
What an interim CEO is not
Not a consultant, not an advisor, and not a caretaker. A caretaker keeps the seat warm. A real interim mandate is judged on what changed: cash position, cost base, commercial pipeline, management quality, and the credibility of the plan handed to the successor.
Interim CEO at a glance
The term in plain language
- Interim describes the length of the appointment, not a reduced version of the role
- The person holds the same signing and decision authority as a permanent CEO for the duration
- The mandate has a defined start and, unlike a permanent hire, a defined intended end
- Accountability runs to the board or owner exactly as it would for any chief executive
Interim, acting, permanent, and fractional compared
Why boards appoint one
- Sudden departure: resignation, dismissal, illness, or death leaves the seat empty with no internal successor ready
- Distress: covenant pressure, cash shortfall, or a lender losing confidence in the incumbent management
- Acquisition or carve-out: a buyer needs an operator with no ties to either side's politics for the first 6 to 12 months
- Succession gap: the board has identified a future leader who is not yet ready and needs a credible bridge, not a placeholder
What powers an interim CEO typically holds
- Full P&L authority: pricing, cost, and investment decisions within the agreed budget
- Hiring and firing rights across the executive team, exercised in consultation with the board
- Signing authority for contracts and payments up to a threshold set in the mandate letter
- A seat at board meetings, usually without a vote unless also appointed as a director
- No requirement for shareholder approval to exercise day to day authority, though major transactions still require the normal governance sign-off
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