You moved to Monaco for the zero income tax, signed your first clients, and sent your first invoices — then learned that a quarter of your revenue coming from outside the Principality can land you a corporate tax bill of 25% on your profits. That surprise is the single most expensive misunderstanding self-employed newcomers have about Monaco. Registration itself is straightforward; understanding what you are signing up for is the real work.
This guide walks through both: how to register as an entreprise individuelle (sole proprietorship) with the Direction de l'Expansion Économique and the Trade and Industry Register, and how the tax, VAT, and social-charge obligations actually work once you are in business.
What an entreprise individuelle is — and is not
An entreprise individuelle is Monaco's sole proprietorship: one person running a business without creating a separate legal entity. There is no minimum capital, setup costs are low (the registration fee is about €55), and there is no personal income tax for residents. For solo consultants, freelancers, and traders, it is usually the fastest route into business.
The trade-offs are real. Liability is unlimited: your personal assets stand behind the business's debts. And while residents pay no income tax, the business itself can fall under corporate income tax (impôt sur les bénéfices) if enough of its revenue comes from abroad — the 25% rule covered below. If you need liability protection or plan to grow beyond yourself, the usual alternative is the SARL (société à responsabilité limitée), Monaco's limited company, which requires roughly €15,000 in capital and slower formalities.
Who needs permission, and from whom
Every commercial activity in Monaco requires prior government approval — this is not a formality, and it applies to sole proprietors as much as to companies. The authority is the Direction de l'Expansion Économique (DDE), part of the Department of Finance and Economy.
The path splits on nationality:
- Monegasque nationals file a declaration of activity under Law No. 1.144 and receive an acknowledgement of receipt.
- Foreign nationals — including most newcomers — must apply for an administrative authorization (a business permit issued by the Minister of State). Eligibility turns on professional reputation, qualifications, and whether the activity itself needs additional approval. Depending on your situation, you may also need a residence card or work permit.
Either way, the authorization or acknowledgement comes first. Registration with the Trade and Industry Register (RCI) follows within one month of it. Unlike companies, a sole trader's registration is not published in the Journal de Monaco.
Step-by-step registration
Step 1: Confirm your eligibility and define the activity
Before touching a form, pin down exactly what you will do. Monaco authorizes specific activities, so "consulting" needs to become something concrete like "IT systems consulting" or "marketing advisory services." If your activity is regulated (finance, health, yachting services, and others), expect extra approvals on top of the standard permit.
Foreign applicants should also confirm their residence position early. You can hold a business authorization without living in Monaco in some configurations, but most self-employed newcomers settle in the Principality, and the residence card process runs on its own timetable.
Step 2: Choose a business name
You may trade under your own legal name or register a trade name (nom commercial). A trade name is worth the small extra effort if you invoice internationally: it looks more established on contracts, and it keeps your personal name off every document that circulates. The Business Development Agency's Monaco Business Office portal provides guidance and the current forms.
Step 3: Gather the documents
A typical application file contains:
- The application for a permit to carry out a business activity
- A personal information form
- Passport or government-issued ID, plus residence permit if you hold one
- Birth certificate
- Proof of business address in Monaco (a lease, domiciliation agreement, or equivalent)
- A valid criminal record extract
Start the criminal record extract early — it is the document most often issued by another country's bureaucracy on another country's timetable. Everything else is usually within your control.
Step 4: Apply to the DDE, then register with the RCI
Submit the file to the DDE for authorization. In practice, straightforward applications are often decided in two to four weeks, but the administration legally has up to three months, so do not sign client contracts that assume an earlier start date.
Once authorization (or the acknowledgement of declaration) is issued, you have one month to register with the RCI using the official P1 form ("Demande d'inscription au RCI"). The registration fee is about €55, payable by cheque, cash, or bank card, with small extras possible for certificates or postage. Registration gives you your RCI number — the identifier that will appear on every invoice you issue.
Step 5: Complete the post-registration setup
After RCI registration, your details are passed to the other administrations involved: you are set up with the Tax Department (Direction des Services Fiscaux) for VAT and any corporate tax filings, assigned a statistical identification number (NIS) by the statistics institute (IMSEE), and affiliated with the self-employed social funds, CAMTI for health coverage and CARTI for retirement.
Keep every registration current. A change of address, activity, or trade name must be declared within one month. Letting the file go stale is a quiet way to accumulate compliance problems that surface at the worst moment — during a bank review or a tax audit.
The 25% foreign-revenue rule, explained
Here is the rule that surprises newcomers. Monaco levies corporate income tax at 25% on taxable profits (the rate since financial years opened from 1 January 2022) on businesses carrying on commercial or industrial activity in the Principality when 25% or more of turnover comes from operations outside Monaco. Earn at least three-quarters of your revenue inside Monaco and you are exempt; cross the line and the whole profit — not just the foreign slice — falls into scope.
Work through what that means for a freelancer. Suppose your turnover is €200,000: €150,000 from Monaco-based clients and €50,000 from clients in London and Milan. Foreign revenue is exactly 25%, so the threshold is met and the 25% rate applies to your taxable profit. Shift €10,000 of that foreign work to a Monaco client and the ratio drops to 20% — outside the tax entirely. A single contract can move you across the line in either direction, which is why the ratio deserves a place in your regular bookkeeping rather than in a once-a-year tax computation.
Two nuances matter. First, the test runs on turnover, not profit: a year of thin margins does not shrink the ratio. Second, genuinely non-commercial activity — pure intellectual or strategic consulting with no commercial character, for example — is treated as outside the corporate tax altogether, though the boundary between commercial and liberal activity is exactly the kind of question to settle with a Monaco accountant before you rely on it, not after.
Track the ratio in your books, not in a spreadsheet you open in December
The practical move is to split revenue by territory from the first invoice. In a plain-text ledger, that is two income accounts instead of one:
2026-01-02 open Assets:Bank:Monaco EUR
2026-01-02 open Income:Consulting:Monaco EUR
2026-01-02 open Income:Consulting:Export EUR
2026-01-02 open Expenses:Social:CAMTI EUR
2026-01-02 open Expenses:Social:CARTI EUR
2026-04-10 * "Monaco client" "Q1 retainer - domestic"
Assets:Bank:Monaco 9000.00 EUR
Income:Consulting:Monaco -9000.00 EUR
2026-04-12 * "London client" "Q1 retainer - export"
Assets:Bank:Monaco 3000.00 EUR
Income:Consulting:Export -3000.00 EUR
2026-04-15 * "CAMTI" "Q1 health contribution"
Expenses:Social:CAMTI 1101.00 EUR
Assets:Bank:Monaco -1101.00 EURWith domestic and export revenue in separate accounts, the foreign share is one query away at any point in the year — total the Export account, divide by the two accounts combined, and you know exactly how much headroom you have left before the 25% threshold. If you want that picture as a chart rather than a query result, the Fava dashboard renders the same ledger visually. Either way, the discipline is the same: tag each invoice's territory when you book it, because reconstructing twelve months of client geography from memory is where the errors creep in. Our documentation covers ledger structure and balance assertions in more depth if you are setting this up for the first time.
VAT: the French system at 20%
Monaco has no income tax, but it very much has VAT — and it runs on the French VAT system through the customs union between the two countries. The standard rate is 20%, with reduced rates of 10%, 5.5%, and 2.1% for specific goods and services. Most commercial, industrial, and professional activity carried on in Monaco is subject to VAT, with exemptions for defined categories such as some medical, educational, and financial services.
If your activity is taxable, you register with the Tax Department and file returns, usually quarterly. Price your services with VAT in mind from day one: quoting a Monaco client €10,000 "plus VAT" versus "VAT included" is a 20% swing in what you keep, and cross-border services add place-of-supply rules that decide whether you charge Monegasque VAT at all. Get the invoicing treatment right before the first invoice, because corrections across quarters are tedious for everyone.
Social charges: fixed, quarterly, and unavoidable
Self-employed workers affiliate with two funds: CAMTI for health insurance and CARTI for retirement. Contributions are fixed quarterly amounts, not a percentage of income — a structure that favors high earners and stings in a slow first year, when the same bill arrives regardless of revenue.
Recent figures put the total at roughly €6,550 to €13,060 per year depending on the pension class chosen, with the current base around €1,101 per quarter for CAMTI health coverage plus from about €550 per quarter for CARTI's entry pension class. Treat roughly €550 per month as the standing cost of being self-employed in Monaco before you have earned a euro. Budget it as fixed overhead in your first-year plan, alongside rent and insurance, not as something profits will somehow cover.
Invoicing and record-keeping
Every invoice you issue must carry your RCI registration number, your business details, the client's details, the date, a description of the goods or services, and the applicable VAT. Invoices run in one unbroken sequential series — no gaps, no restarts each month — and you keep copies of everything. Supporting records (receipts, bank statements, contracts) must be retained for at least ten years and produced if the authorities ask during an audit.
Ten years sounds abstract until the first time a client disputes a three-year-old invoice or the tax office queries a VAT return. The boring system — sequential numbers, filed copies, reconciled bank accounts — is what makes those moments routine instead of terrifying.
Mistakes newcomers make
Assuming "tax-free Monaco" means tax-free business. The exemption from personal income tax is real, but VAT, the potential 25% corporate tax, and fixed social charges mean a self-employed business in Monaco has a genuine compliance load and a genuine cost base. Model all three before you commit.
Letting export revenue drift over 25% unnoticed. The threshold is measured on turnover across the year, and international freelancers naturally accumulate foreign clients. Review the ratio quarterly, when you still have time to rebalance the pipeline rather than discovering the breach after year-end.
Treating the authorization as a rubber stamp. The DDE examines professional reputation and qualifications, and regulated activities need further approvals. A thin or vague application file is the most avoidable cause of delay.
Mixing personal and business money. A separate business bank account is not strictly mandatory, but commingled funds make the foreign-revenue split, VAT accounting, and any future audit dramatically harder. Open the account before the first invoice.
Forgetting the one-month clocks. RCI registration within one month of authorization, and any later change of address, activity, or name declared within one month. Both are easy to miss while you are busy finding clients.
Closing the business properly
If you stop working as an entreprise individuelle, the exit has its own paperwork: declare the cessation of activity, deregister from both the RCI and the NIS registries on the official forms, and notify the tax and social security authorities. Skipping the deregistration does not pause anything — social fund bills and filing obligations continue until the administrations record the closure. A clean exit takes weeks; an unrecorded one can generate years of correspondence.
Your first-week checklist
Start with eligibility and residence, define the activity precisely, assemble the file (criminal record extract first), and apply to the DDE with time to spare. The moment authorization arrives, register with the RCI, open the business bank account, set up the domestic-versus-export split in your books, and register for VAT. Do those in order and the famous Monaco simplicity is real — it is just the paperwork of a well-run administration, not the absence of paperwork.
