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KM Legal est une étude d’avocat au Luxembourg fondée par Maître Katarzyna Martin, Avocate à la Cour. Elle accompagne entreprises, dirigeants, salariés et particuliers en droit du travail, droit des sociétés, immigration, mobilité internationale et sécurité sociale, ainsi qu’en conseil et contentieux.

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Cabinet d'Avocat KM Legal · KM Legal · Directions

Lun - Ven : 09h00 - 18h00

International Mobility

International Mobility

International Mobility

An assignment abroad, an employee seconded to Luxembourg, or remote work from a neighboring country? KM Legal supports companies and professionals in preparing for the legal consequences of such mobility.

KM Legal reviews together the employment contract, social security, and residence obligations. Tax implications are also identified to coordinate the procedures before departure and during the assignment.

  • Secondment and Expatriation
  • Mobility contracts and amendments
  • Social Security and A1 Certificate
  • Remote work for cross-border employees
  • Activity carried out in multiple countries
  • Residence formalities and tax coordination

A Clear Framework, from One Country to Another

The country of residence, workplaces, and duration of the assignment guide the analysis. The firm helps you organize the formalities and adapt the framework when an assignment or work pattern changes.

  • 01
    Before Departure

    The conditions of the assignment, contractual documents, and required formalities are reviewed together.

  • 02
    During the Assignment

    Social security affiliation, the A1 certificate, and reporting obligations: the firm assists in coordinating the file.

  • 03
    In Case of Change

    Extension, remote work, or return: the consequences of the new situation are re-evaluated.

Frequently Asked Questions (FAQ)

Before departure or arrival, as soon as the countries, duration, and conditions of the assignment are known. A consultation is also useful if the situation changes during the assignment.
Yes. The place of residence and distribution of work can modify social and tax obligations. The firm analyzes the proposed schedule before implementation.
Yes. KM Legal reviews your mobility situation and assists you in the procedures related to determining the applicable social security regime.
The countries of residence and work, the assignment schedule, the contract, remuneration, and the current social security affiliation. Also indicate the days of remote work or activity in each country.

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