Receipt and content of the tax assessment

• How long does it take to receive my tax assessment and refund?

  Find out when you'll receive the tax statement for your return in Luxembourg with our helpful guide.Popular

• What does the tax authority's tax statement look like?

  See what the tax authority's tax statement looks like in Luxembourg with our detailed example.Some readers

• How to understand and manage the advance tax assessment notice ?

  The advance tax assessment notice is a notification sent by the Luxembourg Inland Revenue (Administration des contributions directes – ACD). It outlines the advance payments you are required to make to cover your income tax for the current year. These advance payments are calculated based on your most recent tax return or on estimates provided by the ACD. They allow you to pay your taxes in advance and in instalments throughout the year. Here is what the different categories meanFew readers

• How can I receive my tax assessment electronically?

  Find out how to receive your tax assessment electronically in Luxembourg with our easy-to-follow instructions.Few readers

• How can I understand and check my tax statement ?

  The tax notice is an essential document for understanding your tax situation and the amount you have to pay or the refund to which you may be entitled. In most cases, you will receive both the income tax statement ("bulletin de l'impôt sur le revenu") and the statement of account ("décompte"). However, if you have foreign income, a third document, called an ‘overall tax rate determination’ ("Détermination du taux d'impôt global"), may also be issued. The statement of aFew readers

• When will I receive my tax assessment and statement?

  Unfortunately, there is no fixed deadline. By law, the tax authorities have 5 years in which to check your tax return and issue a tax assessment. This means that a notice may be issued quickly or may take longer, depending on the complexity of the case, the administration's workload or other factors. However, you can contact your tax office if you would like more precise information about your situation.Few readers

• What happens after submitting my tax return on MyGuichet?

  Once your tax return is submitted on MyGuichet, it is forwarded to your tax office. The tax administration: Reviews the information in your return. Adds comments if additional information or documents are required. Finalises the process once all checks are completed. You will then receive by postal mail: Your tax assessment notice, showing the amount of tax to be paid or refunded. The detailed tax calculation. The tax administration has a legal perioFew readers

• How can you find out why there is a difference between the tax assessment and the taxx.lu result?

  There may be a difference between the final result issued by the tax authority and the estimation provided by taxx.lu. In such cases, the tax authority usually adds an explanatory note at the bottom of the tax assessment, indicating the reason for the difference. This information appears under the heading: « L’imposition diffère de la déclaration sur les points suivants » If the tax authority has not provided an explanatory note, which is possible, you can, if you have selected a PlusFew readers

Tax payments and advances

• What penalty interest is applied on late payment?

  Learn about the penalty interest applied for late payments in Luxembourg with our informative guide.Popular

• How do quarterly advances work?

  The quarterly advance tax payments work as follows: If a mandatory declaration leads to an adjustment of taxes for the previous year, the tax authority may require the taxpayer to make quarterly advance payments throughout the current year. These payments are due on March 10th, June 10th, September 10th, and December 10th, and represent one quarter of the previous year's tax adjustment. During a first tax adjustment, the taxpayer must pay the tax for the previous year as wSome readers

• What are tax advances?

  Tax advances are quarterly advances that can be requested by Tax Authorities. If you are in this situation, enter the annual amount in field "I paid tax advances" in the "Other" Form. Most people do not have to pay tax advances, so if this is your situation, leave the box blank. This is NOT the amount of tax withheld on your salary certificate!Some readers

• How long do I have to pay my tax debt once I have received the tax assessment?

  You have one month from receipt of your tax assessment and statement to pay the amount due. Interest may be charged on late payment after this deadline.Few readers

• What is the bank account number of the Tax Administration?

  Here is how to find the bank account number of the competent revenue service: Revenue Service To ensure the correct allocation of the amount to be transferred, please provide: Your file number The reason for your payment (e.g., “2024 tax balance” or “advance 04/2025”)Few readers

Correction of the tax assessment

• What should I do if the result on taxx.lu differs from the tax statement received by Tax Authorities?

  If you have chosen our "Plus" or "Premium" packages, our services include verification of your tax assessment. To do this, please contact us by e-mail at help@taxx.lu and send us your tax statement in full. If you have chosen our "Standard" package, you have the option of upgrading to the "Plus" package so that our team can carry out a full verification of your tax return and tax assessment. What does the tax authority's tax statement look like? (/en/article/what-does-the-tax-authoritys-taxSome readers

• What is the deadline for requesting a correction to the tax assessment ?

  Discover the deadline for requesting a correction to your tax assessment in Luxembourg with our clear guide.Few readers

• I used the MyGuichet assistant to make my declaration and received a statement. Can you check that everything is correct?

  Yes, absolutely! When you use the MyGuichet assistant, your tax return is processed fully automatically. Their system generates a statement and a tax notice without any tax officials checking your information or the attachments. ⚠️ Important: The tax authorities reserve a period of 5 years to check your return at a later date. If any errors or omissions are detected, they may send you a new final statement, with adjustments (tax refund or supplement). This means that if you have forgoFew readers

Refund

• Why is the Luxembourg Tax Authority (ACD) now asking for my bank details?

  The ACD has tightened its verification procedures for tax refunds. From now on, taxpayers must provide official proof of their bank details. This measure is designed to secure transfers and prevent errors or fraud during refunds. What documents does the ACD accept? The ACD only accepts two types of documents: A Bank Account Statement (RIB): an official document issued by your bank (Luxembourg or foreign) showing your name, IBAN and BIC/SWIFT code. You can usually download it easilFew readers

• Where can I find my bank details (RIB)?

  Spuerkeess If you have an S-Net agreement, print your bank details via your S-Net space: Access your financial situation. On your current account, open the menu at the top right using the three dots. Select ‘Bank details’. BGL Select the account for which you would like to obtain bank details. In the app, scroll through the green menu bar to see all the accounts for which bank details are available (current accounts, loans, savings accounts, etc.). Once yFew readers