Key Takeaways

  • The combined employer CNSS contribution is approximately 18% of gross salary, covering pension, occupational accidents, and family allowances; employees contribute approximately 3% toward the pension branch.
  • Income tax (IGR) is progressive and must be withheld monthly and remitted to the Direction Générale des Impôts (DGI) by the applicable deadline.
  • The Code du Travail requires written employment contracts in Arabic and/or French, with a standard 40-hour working week and a minimum of 24 working days’ annual leave.
  • Ramadan working hour reductions and annually variable Islamic public holidays must be factored into payroll planning throughout each calendar year.
  • Outsourcing to a specialist provider is the most reliable way to manage DGI and CNSS obligations within Mauritania’s evolving compliance environment.

The Islamic Republic of Mauritania is a large, sparsely populated country in northwest Africa, bordered by the Atlantic Ocean to the west and sharing borders with Senegal, Mali, Algeria, and the Western Sahara. With a population of approximately 4.5 million, Mauritania is rich in natural resources — particularly iron ore, gold, and offshore oil and gas — that have attracted international energy companies and mining operators. The country’s economy is also supported by fisheries, livestock, and a growing services sector centred on the capital, Nouakchott. Employers operating in Mauritania must navigate a payroll framework rooted in French administrative tradition, overlaid with Islamic legal principles and specific Mauritanian labour legislation.

Mauritania payroll outsourcing provides a practical route for international employers to manage salary calculations, income tax withholding, social security contributions, and regulatory filings without building an in-house payroll function in Nouakchott. By partnering with a provider experienced in the Direction Générale des Impôts (DGI) and the Caisse Nationale de Sécurité Sociale (CNSS), businesses can achieve compliance confidence and focus on operations. This guide explains the Mauritanian payroll framework in full and helps you assess whether outsourcing is right for your organisation.

What is Payroll Outsourcing in Mauritania?

Payroll outsourcing in Mauritania means delegating responsibility for salary calculation, income tax (IGR) withholding, social security contributions to the CNSS, payslip generation, and regulatory filings to a qualified third-party provider. This covers compliance with the Direction Générale des Impôts (DGI) and the Caisse Nationale de Sécurité Sociale (CNSS).

For companies without a legal entity in Mauritania, payroll outsourcing is often combined with an employer of record in Mauritania, which acts as the legal employer while you manage the workforce operationally. This model is common in the mining, oil and gas, fisheries, and international development sectors — the primary industries in which international employers are active in the country.

A specialist provider manages DGI registration, CNSS enrolment, and all monthly reporting obligations, ensuring deductions are calculated correctly and remitted on time in Mauritanian Ouguiya (MRU).

Mauritania Payroll Regulatory Framework

Mauritania’s payroll environment is governed by the Direction Générale des Impôts (DGI) for income tax, the Caisse Nationale de Sécurité Sociale (CNSS) for social security, and the Ministère du Travail for employment standards. The regulatory framework reflects Mauritania’s French colonial administrative heritage, with legislation primarily documented in French and Arabic. While Arabic is the national official language, French remains the primary language for business and legal documentation.

Governing Bodies

The Direction Générale des Impôts (DGI) administers income tax (IGR) collection, employer tax registration, and filing requirements. The Caisse Nationale de Sécurité Sociale (CNSS) collects and manages social security contributions covering retirement, occupational accidents, and family allowances. The Ministère du Travail (Ministry of Labour) oversees employment standards under the Code du Travail and handles labour dispute resolution. The Banque Centrale de Mauritanie provides oversight of financial and monetary matters relevant to employer obligations.

The World Bank’s Mauritania country overview provides useful context on the country’s economic development priorities, including investment in human capital and governance reforms affecting the business environment.

Social Security Contributions (CNSS)

Mauritania’s CNSS system covers three main branches: old age, invalidity, and survivors’ pensions (retraite); occupational accident and disease insurance (accidents du travail); and family allowances (allocations familiales). The combined employer contribution rate is approximately 18% of gross salary, broken down as approximately 8% for pension, 3% for occupational accident insurance, and 7% for family allowances. Employees contribute approximately 3% of gross salary toward the pension branch. Contributions must be remitted monthly and apply to all employees regardless of nationality, subject to bilateral social security agreements.

There is no separate occupational pension mandate beyond the CNSS system in Mauritania. Employers operating in the extractive sector should confirm applicable contribution rates under sector-specific agreements, as rates may be subject to negotiation under project agreements.

Income Tax (IGR)

Mauritania applies a progressive income tax system under the Impôt Général sur le Revenu (IGR). Employers are required to withhold and remit IGR on behalf of all employees each month. Tax rates are applied progressively, with higher earnings subject to higher marginal rates. For the current IGR bands and applicable deductions (including family allowances and professional charges), employers should consult the DGI directly or work with a qualified local adviser.

The national minimum wage (SMIG — Salaire Minimum Interprofessionnel Garanti) is set by government decree and reviewed periodically. Employers in all sectors are required to apply the current SMIG when setting base wages. Checking the current SMIG figure before processing payroll is essential, as government decrees are issued without advance notice.

Employment Contracts and Labour Law

The Code du Travail governs employment relationships in Mauritania. Written employment contracts are mandatory and must specify the position, salary, working hours, leave entitlements, and notice provisions. Contracts are typically drafted in Arabic and/or French. The Code du Travail is administered in French, though official documents may also need to be produced in Arabic for government submissions.

The standard working week is 40 hours in the private sector. Overtime must be compensated at enhanced rates: 25% above the normal rate for the first eight hours of overtime per week, and 50% above the normal rate beyond that. Night work, public holiday work, and prayer time provisions apply depending on the sector and applicable collective agreements. Probation periods are limited to three months for general workers, with the possibility of renewal once.

Leave Entitlements

Employees in Mauritania are entitled to a minimum of 24 working days of paid annual leave per year, with additional leave days accruing for longer service (typically one additional day for every two years of service). Public holidays are observed in accordance with the Mauritanian national calendar, which includes both secular and Islamic holidays — the exact dates of Islamic holidays vary each year based on the lunar calendar.

Female employees are entitled to 14 weeks of maternity leave at full pay under the Code du Travail. During Ramadan, standard working hours are typically reduced for Muslim employees, with specific provisions varying by sector and collective agreement. These adjustments must be factored into monthly payroll calculations.

Employer Filing and Reporting Obligations

Employers in Mauritania must meet several registration and filing requirements to remain compliant:

  • Register with the Direction Générale des Impôts (DGI) and obtain a tax identifier number (Numéro d’Identification Fiscale) before processing the first payroll.
  • Register with the Caisse Nationale de Sécurité Sociale (CNSS) and enrol all employees, regardless of nationality.
  • Calculate and withhold IGR income tax from each monthly payroll based on the applicable progressive rate.
  • Deduct the employee’s approximately 3% CNSS pension contribution from gross salary each month.
  • Remit the combined employer CNSS contributions (approximately 18% of gross salary) alongside employee deductions on a monthly basis.
  • Remit withheld IGR to the DGI by the applicable monthly deadline.
  • Submit monthly CNSS declarations for all employees covered by the scheme.
  • File annual income tax declarations and reconciliation documents with the DGI.

The African Development Bank’s Mauritania country profile provides additional macroeconomic context on the country’s fiscal environment and development priorities, which can inform workforce and payroll planning.

Penalties for Non-Compliance

The DGI enforces income tax obligations through financial penalties and surcharges on late or incorrect filings. The CNSS can levy penalties on employers that fail to register employees, remit contributions on time, or submit inaccurate declarations. Non-compliance with social security obligations can result in retroactive contribution assessments covering the full period of non-compliance, potentially creating significant unexpected liabilities.

Employment law violations under the Code du Travail — including failure to provide written contracts, non-payment of the SMIG, or breach of working time provisions — are subject to investigation by labour inspectors and can result in fines and tribunal proceedings. Employers in the extractive and energy sectors may also face contractual penalties and reputational consequences if payroll non-compliance is identified during project audits.

What are the Benefits of Payroll Outsourcing in Mauritania?

The primary benefit of outsourcing payroll in Mauritania is compliance confidence in a complex, evolving regulatory environment. The combination of DGI income tax obligations, CNSS social security contributions, and Code du Travail requirements — all operating within a French and Arabic administrative framework — creates a multi-stream challenge that is best managed by providers with genuine on-the-ground expertise.

Outsourcing also reduces dependence on scarce local administrative capacity. Providers experienced in Mauritania’s payroll framework can navigate DGI filing systems, CNSS registration procedures, and sector-specific employment terms, reducing the risk of errors that result in penalties or employee grievances.

What are the Downsides of Payroll Outsourcing in Mauritania?

Outsourcing payroll in Mauritania requires entrusting sensitive employee data to a third party. Ensure your provider has appropriate data security practices suited to the local digital infrastructure environment, as well as clear contractual commitments on data handling and confidentiality.

The administrative framework can be demanding for employers simultaneously managing compliance in multiple West African jurisdictions. Providers with broad regional coverage across Mauritania, Senegal, and Mali can help manage cross-border payroll more efficiently, reducing administrative fragmentation.

How to Choose a Mauritania Payroll Provider

Prioritise providers with specific experience filing with the DGI and managing CNSS enrolments in Mauritania. Knowledge of the mining, oil and gas, and international development sectors is particularly valuable, as these industries account for the majority of international employer activity in the country.

Key criteria include: a demonstrated DGI and CNSS compliance track record, the ability to process salary payments in Mauritanian Ouguiya (MRU), working knowledge of French and Arabic documentation requirements, transparent fee structures, and references from employers with operations in Mauritania or the broader West African region.

Payroll Outsourcing Alternative: Employer of Record in Mauritania

If your company does not have a legal entity in Mauritania and does not plan to establish one, an employer of record in Mauritania may be the most practical solution. An EOR acts as the legal employer, managing employment contracts, CNSS registration, DGI compliance, and full Code du Travail obligations. This allows international employers to deploy staff quickly in Mauritania without the cost and complexity of entity registration in Nouakchott.

Get Started with Mauritania Payroll Outsourcing

Managing payroll in Mauritania requires navigating the IGR income tax system, CNSS social security contributions, and the Code du Travail’s employment standards — all within a French and Arabic administrative framework. For most international employers, particularly those in extractive industries and development, outsourcing to a specialist provider is the most reliable path to full compliance. 

Whether you need standalone payroll processing or a comprehensive employer of record solution, our team manages DGI filings, CNSS registration, and full Code du Travail compliance so you can focus on your operations in northwest Africa. Get in touch with our Mauritania payroll team today.