Sole trader, advisory or other civil activity — CAMTI and CARTI contributions only
Effective burden at €60k
14.7%
What you pay
- CAMTI health, maternity and accident insurance — fixed 1,101 per comp.period.quarter
- CARTI pension, class 2 — only if "cartiClass1" = false: fixed 1,100.16 per comp.period.quarter
- CARTI pension, class 1 — only if "cartiClass1" = true: fixed 550.08 per comp.period.quarter
Eligibility
- Activities: advisory, consulting and other civil (non-commercial) activities run as a sole trader with a business permit
- Requires tax residency
- Monaco levies no personal income tax on its residents, except French nationals, who remain taxable in France under the Franco-Monegasque convention of 18 May 1963; the exemption covers only people and activities genuinely established in Monaco and does not change other states' rules. The only direct tax, the profit tax of Sovereign Ordinance 3.152, reaches industrial and commercial activities (with at least 25% of turnover outside Monaco) and companies earning patent or copyright royalties; an activity of a civil nature — advisory work or professional expertise, which the business portal says is not entered in the Trade and Industry Registry — is outside it. A foreign national needs a business permit from the Business Development Agency, and every self-employed person must join CAMTI (health) and CARTI (pension). CARTI has four classes (1 to 4 pension points a month); class 1 is reserved for low incomes — from 1 October 2026 an average monthly professional income below €3,000 in the previous Caisses Sociales year (Arrêté Ministériel 2026-366; the October 2025 letter gave €3,014 for 2025-2026) — so class 2 is the lowest class open to everyone and is the default here.
Net income examples
| Gross/year | Net/year | Burden |
|---|---|---|
| 30,000 EUR | 21,195 EUR | 29.3% |
| 60,000 EUR | 51,195 EUR | 14.7% |
| 120,000 EUR | 111,195 EUR | 7.3% |
Computed by our open tax engine — assumes no deductible expenses, full-year tax residency. Rules as of Oct 1, 2025.
Important context
Contribution amounts are those in force from 1 October 2025 for the Caisses Sociales year 2025-2026 (CAMTI €1,101 a quarter, called at the start of the quarter; CARTI €550.08 / €1,100.16 / €1,650.24 / €2,200.32 a quarter for classes 1-4, called at the end, additional-rate surcharge 0%). On 2 October 2026 neither the Caisses Sociales nor the Journal de Monaco had published the 2026-2027 amounts; only the class-1 threshold had changed, to €3,000. Higher CARTI classes buy more pension points at proportionally higher cost and are voluntary. VAT, levied in Monaco on the same basis and at the same rates as in France, is a consumption tax and is not modelled. Not modelled: French nationals (French income tax applies), US citizenship-based taxation, and the business permit and premises a sole trader needs — a home address is allowed when no clients are received there.