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Rivermate | Luxemburgo

Impuestos en Luxemburgo

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Learn about tax regulations for employers and employees in Luxemburgo

Updated on April 25, 2025

Luxembourg has a comprehensive tax system that applies to both employers and employees. Understanding these obligations is crucial for businesses operating in the country and for individuals working there. The tax system includes social security contributions, income tax withholding, and various deductions and allowances. Compliance with tax regulations and reporting deadlines is essential to avoid penalties and ensure smooth business operations.

This guide provides an overview of employer tax obligations and employee tax deductions in Luxembourg for 2025. It covers social security and payroll taxes, income tax withholding, available deductions, compliance requirements, and special considerations for foreign workers and companies.

Employer Social Security and Payroll Tax Obligations

Employers in Luxembourg are required to contribute to social security on behalf of their employees. These contributions cover various aspects of social welfare, including health insurance, pension, and unemployment benefits.

  • Contribution Rates: Social security contributions are divided between the employer and the employee. The employer's share typically amounts to around 25% of the gross salary.
  • Components of Social Security:
    • Health insurance
    • Pension insurance
    • Accident insurance
    • Dependency insurance
    • Unemployment insurance
  • Payroll Tax: In addition to social security contributions, employers must also withhold income tax from their employees' salaries and remit it to the tax authorities. This is a key part of the income tax system in Luxembourg.

Income Tax Withholding Requirements

Employers are responsible for withholding income tax from their employees' salaries. The amount to be withheld depends on the employee's income level, tax bracket, and any applicable deductions or allowances.

  • Tax Brackets: Luxembourg uses a progressive income tax system, meaning that higher incomes are taxed at higher rates. The tax brackets are adjusted annually.
  • Calculation of Withholding Tax: The employer calculates the withholding tax based on the employee's gross salary, applicable tax bracket, and any deductions or allowances claimed by the employee.
  • Tax Cards: Employees receive a tax card from the tax authorities, which indicates their tax bracket and any applicable deductions. The employer uses this tax card to calculate the correct amount of withholding tax.

Employee Tax Deductions and Allowances

Employees in Luxembourg are entitled to various tax deductions and allowances, which can reduce their taxable income and overall tax liability.

  • Common Deductions:
    • Social security contributions
    • Professional expenses
    • Interest payments on loans
    • Insurance premiums
    • Charitable donations
  • Tax Allowances:
    • Allowance for dependent children
    • Allowance for single parents
    • Allowance for disabled individuals
  • Deduction Limits: Some deductions have specific limits or conditions. It's important to understand these limits to accurately calculate taxable income.

Tax Compliance and Reporting Deadlines

Compliance with tax regulations and adherence to reporting deadlines are essential for both employers and employees in Luxembourg.

  • Employer Obligations:
    • Register with the tax authorities
    • Withhold income tax and social security contributions
    • File monthly or quarterly tax returns
    • Provide employees with annual salary statements
  • Employee Obligations:
    • File an annual tax return (if required)
    • Declare income and deductions accurately
    • Keep records of income and expenses
  • Deadlines:
    • Monthly/Quarterly Tax Returns: Deadlines vary depending on the size of the company.
    • Annual Tax Returns: Typically due by March 31st of the following year, but extensions may be possible.

Special Tax Considerations for Foreign Workers and Companies

Luxembourg has specific tax rules and regulations that apply to foreign workers and companies operating in the country.

  • Foreign Workers:
    • Tax residency: Determined by the length of stay and other factors.
    • Tax treaties: Luxembourg has tax treaties with many countries, which may affect the taxation of foreign workers.
    • Special tax regimes: Certain foreign workers may be eligible for special tax regimes, such as the impatriate regime.
  • Foreign Companies:
    • Permanent establishment: If a foreign company has a permanent establishment in Luxembourg, it will be subject to Luxembourg corporate income tax.
    • VAT registration: Foreign companies may need to register for VAT in Luxembourg if they are engaged in taxable activities.
    • Transfer pricing: Foreign companies must comply with Luxembourg's transfer pricing rules.
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