How to choose a chartered accountant: criteria, method and fees | Comparatif-Pro

Choosing a chartered accountant is one of the most structuring decisions for a small business or SME owner. Beyond keeping the books and meeting tax obligations, this partner shapes the quality of management, cash flow anticipation and the company’s legal security. A poor choice is paid in wasted time, in advice missing at the key moment, and sometimes in costly filing errors.

The accounting market has widened. Alongside independent firms and large national networks, digital players now automate data entry and compress fees. Comparing these offers requires a clear method, because the advertised price says nothing about the actual scope or the level of advice. This guide sets out the criteria, the market models, the fee ranges and the questions to ask before signing.

In short:

1. First define your real need, from simple compliance to management advisory, before comparing a single offer.
2. Four criteria drive the choice: sector specialisation, scope of services, adviser proximity and fee transparency.
3. Three models coexist: independent firm, national network, online accountant. None is best in absolute terms, it all depends on your complexity.
4. Fees must be compared at identical scope. The average annual cost observed is around 3,000 euros per client, but gaps are wide.
5. Require a detailed engagement letter and ask the right questions about availability and advice before any commitment.

Define your need before comparing a single offer

Before looking at any price, the owner must clarify what they truly expect from a chartered accountant. Three levels of support structure the market.

• Compliance only, meaning bookkeeping, the balance sheet, the tax return and VAT filings. This is the baseline expected from any firm.
• Payroll and social management, with payslips, social filings and routine labour law advice. Many companies underestimate this area, which can go to the accountant or to a payroll software depending on the case.
• Advisory and steering, covering dashboards, cash flow forecasts, tax optimisation and support for company formation or transfer. This is where a firm’s real added value lies.

A micro-business under the simplified regime does not have the same needs as a growing SME that hires and raises funds. Defining your level of need avoids two symmetrical mistakes, overpaying for a premium support you do not use, or under-sizing and finding yourself alone when an important decision arises.

The four criteria that really make the difference

Once the need is set, the comparison rests on four criteria. Price comes last, because it can only be read at equal scope.

Sector specialisation

A firm that already knows your business anticipates your constraints rather than discovering them. The tax and social rules of a restaurateur, a liberal profession, a property company or a construction firm have nothing in common. A specialised chartered accountant identifies the applicable schemes, the recurring pitfalls and the benchmark ratios of your sector. This knowledge is often worth more than a few euros of difference on the monthly bill.

The scope of services

Some firms limit themselves to accounting production. Others offer a 360 service including legal, social, the owner’s wealth management and strategic advice. The larger the company grows, the greater the value of a single contact able to cover everything, if only to avoid coordinating five different providers. Conversely, a simple structure may prefer a tight scope plus tools, such as an accounting software for small business.

Proximity and a dedicated adviser

The firm’s availability and a single point of contact shape the entire relationship. Having an adviser who knows your file, whom you can reach quickly and who calls you before a deadline rather than after, radically changes the perceived value. This is precisely where the gap between models widens, as we will see below.

Fee transparency

A good firm states clearly what is included and what carries a surcharge. Beware of low entry packages topped up later with services billed on demand. The grid should specify the scope, the number of annual meetings, the response time and the cost of exceptional engagements such as a tax audit or fundraising support.

Independent firm, national network or online accountant

Three models share the market. Each suits a different company profile, and the choice plays out on the balance between price, proximity and depth of advice.

Digital pure players such as Pennylane, Dougs or Clementine have popularised a low-price model built on automation. They fit simple structures looking above all for compliance and a smooth interface. Their limit shows as soon as the situation grows complex, because personalised human advice is rarer there.

At the other end of the spectrum, national networks rely on human support and breadth of offer. In Extenso illustrates this model well. Founded in 1991 by former Deloitte members, the network brings together around 7,500 staff across nearly 250 branches in France, with a dedicated adviser per client and an offer covering accounting, legal, social and management advisory. This type of player targets precisely the owners who want human contact and a broad scope, where pure players bet on price and automation. For an SME that hires, opens sites or prepares a growth operation, this depth of service often outweighs the price gap.

The right reflex is not to oppose these models in caricature, but to confront them with your real level of complexity and your need to be supported in decisions, not just in producing the accounts. To dig into this trade-off, the dedicated comparison online accountant or traditional firm details the three models, their prices and the company profile suited to each.

Understanding a chartered accountant’s fees

Fees can only be compared at identical scope. An 80 euro per month package covering only bookkeeping is not cheaper than a 200 euro package including payroll for two employees, advice and several annual meetings. Several factors drive the bill.

• The volume of entries, tied to the number of invoices, bank transactions and expense reports to process.
• The scope delegated, from accounting alone to the full offer with social, legal and advisory.
• The status and tax regime, which determine the complexity of filing obligations.
• The degree of pre-processing, because a company that transmits already structured data through connected software reduces the billed entry time.

As a guide, a micro-business often falls between 60 and 150 euros per month, a small business between 100 and 300 euros per month, an SME from several hundred euros depending on complexity. The average annual cost observed on the market is around 3,000 euros per client, but the gaps are real and these markers remain indicative. The upcoming mandatory electronic invoicing will also change things, by automating part of the data entry and shifting the firm’s value towards advice rather than production.

The questions to ask before signing the engagement letter

The engagement letter is the document that formalises the relationship. Before signing it, a few questions clear up the grey areas.

• Who will be my day-to-day contact, and how many files do they handle in parallel?
• What is the usual response time to a question by email or phone?
• How many review and advisory meetings are included in the package each year?
• What happens in the event of a tax audit, and is this billed extra?
• Is the firm comfortable with my sector, and can it cite comparable references?
• What tools and software are used, and do they remain accessible if I change firm?

The answer to this last question matters particularly if your management already relies on a structuring tool, for example an ERP for SMEs that the firm will need to interface with.

When and how to change chartered accountant

Changing firm is free, but a few precautions avoid friction. The right moment is after the annual closing, so as not to split a financial year in two and to ease the handover. You must respect the notice period set in the engagement letter, notify the termination in writing and settle outstanding fees.

The profession’s code of conduct imposes a duty of collegiality. The former firm must hand over to the new one the accounting documents and the elements needed for continuity, without retention. The signals that justify a change are recurring, namely an unreachable adviser, a lack of proactive advice, filing errors, or a firm that no longer keeps up with the company’s growth. In this last case, moving from an independent to a more structured network is less about dissatisfaction than about the natural evolution of needs.

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