Fractional CFO vs Chartered Accountant: what’s the difference?
Chartered accountant and CFO are complementary, not substitutable. Comparative table of missions, scopes, and when each becomes essential.

Cofondateur, DAF externalisé et CFO

“I already have an accountant, why would I need a CFO?” » — this is a common confusion. The accountant and the CFO have complementary but totally different professions. Comparing a CFO to an accountant is like comparing a pilot to a mechanic — both are essential, but they don't have the same role.
The accountant: the guardian of compliance
Its role is accounting and tax:
- Records accounting operations (invoices, bank, payroll)
- Prepares tax declarations (VAT, IS, CET)
- Produces the annual accounts (balance sheet, income statement)
- Ensures regulatory compliance
- Responds to tax audits
Its horizon is retrospective: it deals with what happened. Average cost: €800-2,000/month.
The Fractional CFO: the performance driver
His role is financial management:
- Implements the financial strategy
- Builds financial models and forecasts
- Manages cash flow and monthly reporting
- Supports fundraising and M&A
- Optimizes taxation (CIR, subsidies)
- Structures management control
- Leads reporting to the board
Its horizon is prospective. At Iter Advisors: €3,000–8,000 excluding tax/month, depending on scope and profile.
The winning duo: accountant + CFO
The accountant provides the accounting basis — the CFO uses this basis to manage.
| Need | Chartered accountant | CFO |
|---|---|---|
| Daily accounting | ✅ | ❌ |
| Tax declarations | ✅ | ❌ |
| Annual accounts | ✅ | ❌ |
| Cash flow & forecasting | ❌ | ✅ |
| Monthly reporting/board | ❌ | ✅ |
| Financial model | ❌ | ✅ |
| Fundraising | ❌ | ✅ |
| Management control | ❌ | ✅ |
| CIR & subsidies | ❌ | ✅ |
| M&A | ❌ | ✅ |
When does the CFO become essential in addition to the accountant?
- When you have more than 10 employees
- When you prepare for fundraising
- When your turnover exceeds 1M€
- When you have multi-country operations
- When you no longer understand your numbers
