How to avoid overpaying and underpaying tax for border residents 

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Do you have to file a tax return?

As ​a non-resident tax payer, you need to file an income tax return if any of the following apply to you



Tax return mandatory

Income threashold (only applies to Louxembourgish incomes)

Taxable income over

EUR 100,000

In case of several revenues subject to withholding tax


  • Class 1 and 2

EUR 36,000

  • Class 1A

EUR 30,000

Usually are concerned

  • Married couple where both work
  • Employes combining several employment contracts


Income not subject to witholding tax in excess of

EUR 600

Income from transferable securities over 

EUR 1,600

Directors fees over

EUR 1,500

Joint taxation of a non-resident and a resident

NA


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The following are cases where you could benefit from filing a tax return (this list is not exhaustive)

  • You are in Partnership and you both worked during the tax year.
  • You received a property related income from a Louxembourgish source
  • You realized a loss from a type of Luxembourgish income not subjected to tax witholding 
  • You paid an allowances to children not part of your household
  • You personally comtribute to your company pension scheme 



What you get is even more 

  • Your incomes from Luxemburgish source represent more than 90% of your global income (50% for the belgians) 
  • You paid insurance premiums.
  • You paid debit interests related to credit cards or loans.
  • You purchased your home during the tax year
  • You realized a loss from a category of income not subject to withholding tax (i.e. interests paid on a mortgage loan related to the main residence).  
  • You received dividends of less than or equal to 1,500 euro and wishing to account withholding tax on income from transferable securities.