Accountants and tax advice in Monaco: what the engagement really covers

A regulated profession, inside an unusual tax framework

Monaco's accounting and tax advisers serve three client groups with almost nothing in common: locally trading companies, international groups domiciled in the Principality, and individuals whose assets sit across several jurisdictions. What unites them is a tax framework that is widely misunderstood — including by foreign advisers reasoning by analogy with France, Italy or the UK.

Two misconceptions come up constantly and are worth clearing first. Monaco does not operate "EU VAT": the Principality is not an EU member state and applies French VAT. And a Monaco resident does not file an income tax return: there is no personal income tax, no wealth tax, and no general obligation to declare foreign assets.

Who practises, and under what title

The profession is organised by the Ordre des experts-comptables de Monaco (oecm.mc), the professional institution that represents the profession and enforces its code of ethics. Two protected titles coexist:

• Expert-comptable, who may prepare, review and certify accounts;
• Comptable agréé, whose permitted scope is narrower.

As with any independent activity in the Principality, practising requires prior authorisation from the Minister of State — the mechanism is set out in the guide to freelancing in Monaco. In practical terms, a firm based in Nice or Milan cannot hold itself out as a Monegasque expert-comptable: check registration before handing over a file. The professions directory on the MonEntreprise portal and the Ordre's own list are the two sources to use.

What Monaco actually taxes

ISB is where most of the advisory work concentrates, because its trigger is counter-intuitive: what matters is not the legal form of the entity but the nature of the activity and where the turnover is earned. A company carrying on an industrial or commercial activity and earning at least a quarter of its turnover outside the Principality falls within it; a purely local activity, or one of a civil nature, does not. The detail sits in corporate taxation and Monaco's tax system.

VAT is administered by the Direction des Services Fiscaux, Division des Taxes, 57 rue Grimaldi. Every new business files a declaration of existence together with the "Régime TVA" form. The exemption thresholds are the French ones and have been reworked several times since 2025: see VAT in Monaco and VAT registration.

Company accounting obligations

Monegasque companies must keep proper accounting records and draw up annual accounts — balance sheet, profit and loss account, notes — approved and filed according to their legal form. The components, deadlines and which companies are caught are covered in annual accounts in Monaco and accounting obligations.

On top of that come payroll and social filings where relevant — CCSS for employees, CAMTI-CARTI for non-salaried directors — described in employer social charges.

When a firm stops being optional

Engaging a professional is not a legal requirement, but four situations make it hard to avoid:

• At formation, to settle ISB exposure before fixing the invoicing model — the single most expensive judgement to correct after the fact.
• When invoicing internationally, where French VAT, place-of-supply rules and tax treaties interact.
• From the first employee, Monegasque payroll having its own rates and its own funds.
• Where residence is split, since the absence of Monegasque tax settles nothing about reporting duties at home — see double taxation.

To identify a firm, the accountants and fiduciaries directory and the accounting firms in Monaco guide list the local market.

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Sources: Ordre des experts-comptables de Monaco (oecm.mc); MonEntreprise portal — professions directory and business profits tax; Franco-Monegasque tax convention of 18 May 1963; Direction des Services Fiscaux. Last verified: September 2026.