Declaration obligation

• Who has to make a tax return in Luxembourg?

  Find out who needs to file a tax return in Luxembourg with our detailed guide.Featured

• Why should I still file a tax return even if it is not mandatory?

  Even if you are not required to file a tax return, it can be worthwhile to do so in order to deduct certain expenses and potentially receive a tax refund.Few readers

• What tax benefits can I get by filing a voluntary tax return?

  By filing a voluntary tax return, you can benefit from deductions for certain expenses (professional expenses, mortgage interest, insurance, retirement savings, donations, etc.), tax credits, and potentially receive a refund if you have overpaid taxes.Few readers

Income tax returns and taxation

• What can I deduct in my Luxembourg tax return?

  Discover what you can deduct in your Luxembourg tax return with our detailed guide.Popular

• How does taxation and withholding tax work in Luxembourg?

  Understand how taxation and withholding tax work in Luxembourg with our comprehensive guide.Some readers

• How can I indicate income in another currency?

  Find out how to indicate income in another currency on your Luxembourg tax return with our step-by-step guide.Some readers

• How does withholding tax work in Luxembourg?

  Understand how withholding tax works in Luxembourg with taxx.lu.Some readers

• What are the consequences if I don't declare all my income?

  Discover the consequences of not declaring all your income on your Luxembourg tax return.Few readers

• Is there double taxation in Luxembourg?

  Learn about double taxation in Luxembourg and how it may affect you.Few readers

Voluntary tax return

• How do I get a tax refund in Luxembourg ?

  Learn how to obtain a tax refund in Luxembourg with our step-by-step guide for a smooth process.Some readers

• When can an annual statement (F163) be done ?

  Find out when an annual statement F163 can be done in Luxembourg with taxx.lu.Few readers

• Can I claim a tax refund if I don't pay any tax on my income?

  If your taxable income is less than 11.450 €, then you pay no tax on your income and therefore cannot claim a tax refund. If you work as a European civil servant, too, as their salaries are not taxed. However, if you receive rental income, then a tax return is compulsory.Few readers

• What is a voluntary tax return in Luxembourg?

  A voluntary tax return in Luxembourg is a tax return that you file even if you are not required to do so. It allows you to: declare your income and expenses benefit from deductions and tax credits recover any overpaid tax if you have paid more than you actually owed In short, it is a way to ensure you pay the correct amount of tax and to reclaim any amounts that may be due to you.Few readers

• Can I recover an overpaid tax by filing my tax return?

  Yes, by filing your tax return, you can recover an overpaid tax if you have paid more than you actually owed, for example through deductions, tax credits, or errors in the administration’s calculations.Few readers

• When is it interesting to file a voluntary tax return?

  It is interesting to file a voluntary tax return when you want to: recover any overpaid tax if you have paid more than you actually owed deduct certain expenses (professional expenses, mortgage interest, insurance, retirement savings, donations, etc.) benefit from tax credits you are entitled to In short, even if you are not required to file, it can allow you to pay less tax or receive a refund.Few readers

• Can I file a voluntary tax return if I am a cross-border worker?

  Yes, a cross-border worker can file a voluntary tax return in Luxembourg.Few readers

• Does filing a voluntary tax return change the amount of my tax for the following year?

  No, filing a voluntary tax return does not change the amount of your tax for the following year. It only allows you to correct or recover any overpaid tax for the relevant tax year.Few readers

• Is it possible to file a voluntary tax return after the official deadline?

  No, a voluntary tax return cannot be filed after the official deadline. After this date, it is no longer possible to receive a tax refund.Few readers

Tax result

• Why does the final result differ from one year to the next?

  The final result of the tax return may differ from one year to the next due to changes in income, tax deductions and credits, tax laws and possible errors in the return. It is therefore important to calculate your tax correctly each year to avoid any problems with the tax authorities. The final result of the tax return may differ from one year to the next for several reasons: Changes in income: Income can vary from one year to the next depending on various factors such as salary increaseFew readers

• How can I know if I am entitled to a refund after filing my tax return?

  On your taxx.lu account, after entering all your income and information, you will receive an estimate of the result of your tax return.Few readers

• Can I claim a refund for several previous years?

  No, once the filing deadline has passed, it is no longer possible to benefit from a tax refund.Few readers

• What happens if my withholding tax rate was too high or too low?

  If your withholding tax rate was too high, you can recover the overpaid amount by filing your tax return. If your rate was too low, you will have to pay the difference through your tax return. In summary: filing a tax return allows you to adjust the amount you actually owe.Few readers

• Can withholding taxes be recovered through the tax return?

  Yes, withholding taxes can be recovered through the tax return if the amount withheld exceeds what you actually owed, for example through deductions, tax credits, or allowances to which you are entitled.Few readers