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Posted on 29 July 2024

The Salary Certificate in Luxembourg: Everything You Need to Know!

Discover everything about the salary certificate in Luxembourg: definition, importance, content, and tips for employees and employers. Get clear and precise information to better understand this essential document.

Understanding the Essentials of the Salary Certificate in Luxembourg 

The salary certificate is a crucial document for employees and employers in Luxembourg. This official document summarizes an employee’s annual income and the deductions made during the year. Whether you are an employee, an employer, or simply curious, this article will guide you through the key aspects of the salary certificate in Luxembourg.

What is a "Salary Certificate"?

A salary certificate is a document issued by the employer at the end of each calendar year. It details the gross remuneration paid to the employee, the taxes withheld, social contributions, and other deductions. This document is used for various administrative purposes, including tax filing.

Why is the Salary Certificate Important? 

The salary certificate plays a vital role in Luxembourg’s fiscal and social system. Here are some reasons why this document is essential:

1. Tax Return
The information contained in the salary certificate is necessary to correctly fill out the annual tax return. It allows the calculation of due taxes by considering income and deductions.

2. Proof of Income 
The salary certificate serves as proof of income for various administrative processes, such as loan applications, housing requests, or social aid.

3. Verification of Deductions
It allows employees to verify the deductions made by the employer, such as social security contributions and withholding taxes.

Content of the Salary Certificate A salary certificate contains several important elements:
  • Employee Information: name, address, social security number.
  • Employer Information: company name, address.
  • Employment Period: start and end dates of the relevant fiscal year.
  • Annual Gross Income: total gross salaries received.
  • Social Contributions: amounts of contributions for social security, health insurance, etc.
  • Withheld Taxes: amount of income taxes withheld at source.
  • Other Deductions: such as supplementary pension contributions.

How to Obtain and Use the Salary Certificate? 


For Employees 
Employees usually receive their salary certificate at the beginning of the following year. It is essential to verify all information to ensure there are no errors. In case of doubt, it is recommended to contact the company’s human resources department.

For Employers 
Employers must prepare and distribute salary certificates to all their employees. It is important to ensure that all information is accurate and compliant with current regulations.

Practical Tips


Keep the Certificates It is advised to keep all salary certificates for at least five years for any future verification or administrative needs.

Verification and Correction In case of error, contact your employer immediately to make the necessary corrections and issue a revised certificate.

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