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Monaco Tax Filing Guide: DSF Portal, No Individual Filing 2026

Monaco's tax filing system is minimal for individuals — there is no income tax return for non-French residents. Corporate tax returns are due by May 31. VAT returns follow French monthly/quarterly deadlines. A simple annual residency declaration is the primary filing obligation. Here is how tax filing works in 2026.

The Direction des Services Fiscaux (DSF) operates the tax filing system in Monaco. Unlike most countries, Monaco does not require individuals to file annual income tax returns. The only individual obligation is a residency declaration to confirm status. French nationals must file French tax returns separately. Companies subject to CIT must file annual returns. VAT returns are filed through the French VAT portal. Personal tax overview →

Real-world example: A UK national living in Monaco with investment income of €1,000,000/year does not file any Monaco income tax return. They complete a simple annual residency declaration. A Monaco company with €5 million turnover files CIT return by May 31 and monthly VAT returns by the 19th. A French national living in Monaco files French income tax return (2042) by the standard French deadline (typically May/June). Residency and tax obligations →

Filing Deadlines 2026

  • Individual income tax: No filing required for non-French residents. French nationals file French tax returns by French deadlines
  • Corporate income tax: May 31 following the tax year (e.g., 2025 return due by May 31, 2026)
  • VAT (monthly): By the 19th of the following month
  • VAT (quarterly): By the 19th after the quarter ends (for small businesses)
  • Annual residency declaration: Required for all Monaco residents, typically early in the calendar year

If a deadline falls on a weekend or public holiday, it typically shifts to the next business day. The DSF publishes annual tax calendars at the beginning of each year.

DSF Portal and Procedures

The DSF operates online portals for tax filings. Key features include:

  • Corporate tax portal: Online submission of CIT returns, supporting documents, and payments
  • VAT portal: Integrated with the French impots.gouv.fr system for VAT filing
  • Residency declarations: Simple online form for annual residency confirmation
  • Tax clearance: Certificates of tax compliance for business licensing and residency applications

The portal is available in French. Technical support is available through the DSF office in Monaco.

Penalties for Late Filing and Payment

  • Late CIT filing: Fines ranging from 5% to 40% of tax due depending on delay and severity
  • Late VAT filing: Penalties of 5-40% of VAT due plus interest at 0.2% per month
  • Late payment: Interest at 0.2% per month on unpaid tax
  • Non-filing: Penalties of up to 40% for deliberate non-compliance, with potential criminal sanctions for tax fraud

Voluntary disclosure before a DSF audit may result in reduced penalties. The DSF offers installment payment arrangements for taxpayers unable to pay in full.

Record Keeping Requirements

Businesses must maintain records for a minimum of 10 years from the end of the tax year (French standard). Required records include: accounting books and records, invoices and receipts, bank statements, contracts, payroll records, tax returns, and correspondence with DSF. Records may be requested during tax audits. Electronic records are acceptable provided they are accessible and printable.

Do I need a tax agent or accountant to file?

Individuals with Monaco residency (non-French) do not need to file any income tax return. Businesses and self-employed individuals are strongly advised to use a licensed accountant (expert-comptable) familiar with Monaco and French tax rules. All companies must have their financial statements certified by a statutory auditor (commissaire aux comptes) if exceeding certain thresholds.

What happens if I cannot pay my tax bill on time?

File the return on time to avoid late filing penalties, then contact the DSF to arrange an installment payment plan. Interest will continue to accrue on the unpaid amount. The DSF may grant payment extensions in cases of genuine hardship.

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