Accounting Records and Bookkeeping in Monaco

Overview

All commercial businesses operating in Monaco must maintain proper accounting records. These records are essential for tax compliance, financial management, and legal transparency. Requirements vary depending on the business form and size.

Mandatory Accounting Books

All commercial businesses must maintain:

Journal (Journal Comptable)

• Chronological record of all transactions
• Daily entries of purchases, sales, and financial movements
• Essential for audit trail and tax purposes

Ledger (Grand Livre)

• Summary of accounts organized by category
• Asset accounts, liability accounts, equity, income, and expenses
• Used to prepare financial statements

Inventory Book (Livre d'Inventaire)

• Record of assets and liabilities (inventory, equipment, etc.)
• Created at fiscal year-end
• Foundation for the balance sheet

Additional Requirements by Business Form

Commercial Companies (SARL, SAM, SNC)

• Must maintain the three core books listed above
• Must prepare annual accounts (balance sheet, profit/loss statement, notes)
• May have additional records (register of shares, register of meetings)

Sole Traders

• Simplified accounting requirements may apply
• Must keep records sufficient to justify tax declarations
• May use simplified ledger formats

Non-Trading Entities (Associations, Foundations)

• Maintain accounting records appropriate to their structure
• Submit annual accounts if required by statute

Record Organization

Records must be:

• Orderly and clear: Organized to permit audit and inspection
• Dated: All entries must be dated
• Referenced: Cross-referenced between journal and ledger
• Permanent: Not subject to erasure or alteration (original entries must remain visible)
• Legible: Maintained in a format that is readable

Retention Periods

Accounting records must be retained for 10 years from the end of the fiscal year to which they relate. This includes:

• Journals and ledgers
• Invoices (purchase and sales)
• Receipts and supporting documents
• Bank statements
• Payroll records (with specific social security requirements)
• VAT records

After the 10-year period, records may be destroyed or archived.

Digital Accounting Records

Digital record-keeping is permitted subject to:

• Security: Records must be protected from loss or alteration
• Authenticity: Digital signature or other authentication methods may be required
• Integrity: Systems must prevent unauthorized modification
• Accessibility: Records must be retrievable and readable
• Compliance: Systems must comply with technical standards set by authorities

Businesses using accounting software should ensure:

• Regular backups are maintained
• Records cannot be retroactively modified
• Audit trails are preserved
• Software complies with legal requirements

Record Organization Requirements

Maintain records in a manner that:

• Permits authorities to access and audit them
• Demonstrates compliance with tax and social obligations
• Supports preparation of annual accounts
• Allows for verification of specific transactions

Tax and Social Verification

The Department of Tax Services and CCSS (social security) have the right to:

• Inspect accounting records
• Request copies of specific documents
• Verify the accuracy and completeness of entries
• Assess tax and social obligations based on records

Ensure records are organized and accessible for inspection.

Common Record-Keeping Mistakes

Avoid:

• Poor organization: Disorganized files make inspection difficult
• Missing documentation: Always keep supporting documents for entries
• Alteration of records: Never erase or modify entries
• Incomplete records: Maintain all required books
• Short retention: Do not discard records before 10 years
• Digital risks: Ensure digital systems are secure and compliant

Professional Support

Consider engaging:

• Accountants: For bookkeeping and record organization
• Bookkeepers: For daily transaction recording
• Auditors: To verify accuracy of records (required for certain companies)
• Tax advisors: For compliance guidance

Key Contacts

Important Notes

• Compliance is mandatory: Failure to maintain records can result in penalties
• Professional standards: Records should meet professional accounting standards
• Digital transition: Consult with professionals when moving to digital systems
• Changes in bookkeeping: Notify authorities of changes in bookkeeping methods
• Regulatory updates: Stay informed of any updates to record-keeping regulations

Note: This page is an informational resource based on official Monaco sources and does not replace professional legal, tax, or accounting advice.