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What does it mean to be ‘treated as a resident taxpayer’?

Tax assimilation allows cross-border commuters to benefit from the same tax deductions as Luxembourg residents when they file their tax returns.


To be assimilated to a Luxembourg resident, you must satisfy at least one of the following three conditions:


  1. Majority Luxembourg income :
    At least 90% of the household's annual income must come from Luxembourg. For this calculation, the first 50 days worked abroad (e.g. home office) are considered as days worked in Luxembourg.


  1. Limited foreign income :
    The household receives less than €13,000 net in income outside Luxembourg.


  1. Specific condition for Belgian residents:
    More than 50% of the household's professional income is generated in Luxembourg.


If you are married or in a civil partnership, only one of the partners needs to meet one of these conditions for the household to be treated as a Luxembourg resident.






Updated on: 25/02/2025

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