Attention, please make an appointment to go to any of our offices.

Submitting the non-resident tax return online

The deadline for the 2023 return (income 2022) was 24 November 2023. If you have not yet filed your return, do so as soon as possible (your return will be considered late).

Get access to your pre-filled return via MyMinfin, your tax file

Your advantages:

  • Your return is partly pre-filled: easier and faster to fill in.
  • Online help for some codes
  • Possibility to correct (once) the return after sending (until the submission deadline)
  • Possibility to add or change your account number in MyMinfin

Are you entering a joint return? Your partner will also have to log into MyMinfin to sign your return. If that is not possible, fill in only the return without authentication together. 

Getting access to your pre-filled return

Check if and how you can log in to MyMinfin


You (or your partner) do not have access to MyMinfin?

You can get access to the return without authentication. You only need your Belgian national register number or your Belgian bis number.


  • For security reasons, the return does not contain any pre-filled information.
  • You will not be able to get access to your return after it has been sent.
  • You cannot add an annex to your return.
  • You cannot add or change your account number in your return.

Getting access to the return form

Explanation step by step

Frequently asked questions - online non-resident tax return

  • I am entering a joint return. How can my partner sign the return?

    If you enter your return via Myminfin: your partner will also have to get access to the return via MyMinfin in order to sign it.

    If you enter your return without authentication: a single signature is sufficient. This means that you can enter your return with your or your partner's national number/bis number.

  • How do I get an estimate of the tax amount I owe?

    Before sending your return, click on “Calculate your tax” in the menu at the top of the screen.

    Warning, it only is an estimate.  In some cases, the final calculation of your tax indicated in your tax assessment notice (calculation note) may be different.

    You don’t see any display on your screen? Your browser is probably blocking pop-ups. Open the pop-up via the notification at the top or bottom of your screen or change your browser settings.

    In some specific cases, we cannot calculate the tax amount you owe at the moment. This has no impact on your tax return, so you can submit it without delay.

  • Can I add or change my account number in my non-resident income tax return?

    You have access to MyMinfin

    You can add or change your account number in MyMinfin.

    You access your return without authentication

    For security reasons, you cannot enter your account number in the return without getting authentication first.

    In both cases, you can add or modify your account number when you receive your tax assessment notice (the procedure will be mentioned on the document).

  • I am trying to get access to the return, but I get a message saying that I am not a non-resident. What can I do?

    It may happen that you are not recognised - wrongly - as a non-resident. In this case, get in touch with your tax collector office.

    Our employees will only help you in French, Dutch or German. For legal reasons, they cannot use English or any other language. 

  • I am married or in a legal cohabitation but I cannot complete the codes for my partner. What can I do?

    If you are married or in a legal cohabitation, you must introduce a joint tax return with your partner. For most of the codes, you will have to fill in two columns.

    If you only see one column in the return, this means that we are not aware of your marriage or legal cohabitation. We therefore invite you to let us know and correct your situation.

  • My tax return mentions my partner, but we are divorced, or I am a widower/widow. What can I do?

    If the death or the divorce took place in 2022 or before, you must now file a tax return as a single person.

    If you see two columns in the tax return, this means that we do not know that you are divorced or that your partner is deceased. In this case, please let us know and correct your situation.