Iter Advisors
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Fractional CFO vs Chartered Accountant: what’s the difference?

Chartered accountant and CFO are complementary, not interchangeable. A comparison of their remits and scopes, and when each becomes essential.

1 min readUpdated on 13 September 2026
Sébastien Doat

Co-founder, fractional CFO and CFO

Editorial illustration: Fractional CFO vs. chartered accountant — what is the real difference

"I already have an accountant, so why would I need a CFO?" It is a common confusion. The chartered accountant and the CFO have complementary but entirely different jobs. Comparing a CFO with an accountant is like comparing a pilot with a mechanic — both are essential, but they do not do the same job.

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
  • Optimises tax (CIR research tax credit, grants)
  • 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.

NeedChartered accountantCFO
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

Explore our Fractional CFO engagements