Interim CFO vs Fractional CFO
Understanding the key differences
Interim vs Fractional: Key Differences
Interim and fractional CFO are often used interchangeably, but they represent different engagement models. Understanding the distinction helps you choose the right approach for your situation.
Side-by-Side Comparison
| Aspect | interim | fractional |
|---|---|---|
| Time Commitment | Full-time (4-5 days/week) | Part-time (1-3 days/week) |
| Duration | 3-12 months typically | 6+ months, often ongoing |
| Situation | Gap-fill, crisis, transition | Ongoing strategic support |
| Number of Clients | One at a time | 2-4 simultaneously |
| Day Rate | £800-£1,200 | £900-£1,400 |
| Monthly Cost | £15,000-£25,000 | £4,000-£12,000 |
| Integration | Deep, like employee | Strategic, limited ops |
When to Choose Interim CFO
CFO resignation/termination
Need immediate full-time coverage while searching for permanent hire.
Crisis situation
Cash crisis, turnaround, or urgent restructuring requiring daily involvement.
Major transaction
M&A, IPO preparation, or major integration requiring intensive support.
Extended leave cover
Maternity leave, sabbatical, or medical leave requiring full replacement.
When to Choose Fractional CFO
Growing company needs CFO expertise
You need strategic finance leadership but not daily involvement.
Fundraising support
Need CFO for investor relations and diligence but not full-time.
Cost-conscious
Cannot afford full-time CFO cost but need senior expertise.
Ongoing strategic support
Want continuing relationship rather than temporary gap-fill.
Frequently Asked Questions
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