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What can I deduct in my Luxembourg tax return?

The Luxembourg tax return allows you to deduct a number of costs.


Here are a few examples:


Under "Acquisition fees" :

(Flat-rate minimum €540)


  • Contributions paid to professional chambers and unions
  • Books used almost exclusively for professional purposes
  • Professional clothing
  • Work tools used almost exclusively for professional purposes
  • Continuing education expenses necessary for the performance of your profession.


Under "Special expenses" :
(Flat-rate maximum €672 per person in the household)


  • Debtor interest on consumer loans
  • Insurance contributions and premiums


Here are a few examples:

  • Car insurance (only third-party liability and protected driver)
  • Home insurance (only third-party liability)
  • Supplementary health insurance
  • Life insurance


  • Housing savings
    (taxpayer from age 18 to 41 max. €1,344 per person in the household)
    (taxpayer over the age of 41: €672 per person in the household)


  • Old age pension (max. €3,200 per taxpayer)
  • Donations (minimum total of €120)


Under "Main residence" / "Future main residence" :


Interest charges relating to property loans for your principal residence


Upper limit depending on the year of availability and household composition :

  • Availability date after 31/12/2022 : Full deduction.
  • Availability date between 31/12/2018 and 01/01/2023 : €4,000
  • Availability date between 31/12/2013 and 01/01/2019 : €3,000
  • Availability date before 01/01/2014: €2,000


**For the year of acquisition of the principal residence only: **

  • Notary fees for opening a mortgage loan
  • Bank commission


Under "Allowances" :
  • Domestic help and care and/or childcare expenses (max. €5,400)


Here are a few examples:

  • Nursery ("Crèche")
  • Day care center ("Maison relais")
  • Cleaning company or staff


Under "Other" :


  • Extraordinary expenses
    (These expenses are deductible provided they reach a certain minimum threshold. See here: https://help.taxx.lu/en/article/why-are-my-extraordinary-charges-not-included-in-my-tax-return-1207aiv/)


  • Medical expenses not reimbursed by the CNS or supplementary health insurance (including pharmacy costs)
  • Divorce costs
  • Civil court costs
  • Funeral expenses
  • Maintenance of people unable to claim financial support
  • Diets (on prescription)


  • Pensions and permanent expenses (in the event of divorce)
  • Children not forming part of the household (max. 4422€)


Don't know where and how to declare the many deductions? Use taxx.lu to help you fill in your tax return easily!

Updated on: 23/05/2025

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