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Submitting your tax return

Submitting your 2023 tax return

  • How and when do I submit my tax return?

    You submit your tax return yourself

    • In paper format: we must receive your tax return by 30 June 2023 at the latest.
    • Via MyMinfin (Tax-on-web):
      • As a general principle, the deadline to do so is set on 15 July 2023.
      • If you have specific income, you have till 26 October 2023 to submit your return.
        Specific income = income as self-employed person or foreign professional income:
        • Profits
        • And/or remuneration as company managers
        • And/or remuneration as assisting spouses (legal cohabitants)
        • And/or foreign professional income
      • More information on the deadline mentioned in MyMinfin

    You receive a proposed simplified tax return

    Check your details carefully.

    • Are your details correct and complete? You do not need to take any action. You will receive your assessment notice automatically.
    • Are your details incorrect or incomplete? Amend your details:
      • either via the paper reply form, which must reach us by 30 June 2023 at the latest;
      • or via MyMinfin (Tax-on-web), by 15 July 2023 at the latest.

    You have your tax return filled in by an employee from the Federal Public Service (FPS) for Finance

    You have your tax return filled in by an accountant

    Your accountant (or tax advisor) can submit your tax return via MyMinfin (Tax-on-web):

    • As a general principle, the deadline to do so is set on 15 July 2023.
    • If you have specific income, the deadline to do so is set on 26 October 2023 (= income as self-employed person or foreign professional income).

  • Need some help?

    Try the online tax return: it’s simple and fast

    Do you intend to submit a paper tax return? Did you know that your online tax return via MyMinfin (Tax-on-web) is largely pre-completed? Moreover, did you know that Tax-on-web provides you with step-by-step guidance on filling in certain codes by even calculating the amount to be filled in?

    More information

    See our FAQ

    You will also find more information in the various sections of the website: Woning (Housing and accommodation), Gezin (Family), Vervoer (Transport), Belastingvoordelen (Tax reliefs).

    See the explanatory document for tax returns

    More information

    Determine whether the financial resources of a person allow you to to support them financially and mention it in your return

    Use our application to calculate net resources.

    Use the application for foreign income

    Do you receive foreign income from France, Germany, Greece, Italy, Luxembourg, the Netherlands or Spain? Use our application to determine:

    • how you must declare this income in your tax return (personal income tax return);
    • the country in which this income will be taxed;
    • whether this income is subject to municipal tax.

    Get in touch with your 'centre Particuliers'

    Do you have a question about your tax return or your proposed simplified tax return? If so, you can get in touch with your 'centre Particuliers' by telephone.

    Have your tax return filled in by our staff

    The assistance is now finished.

    Engage the services of an accountant

    You can engage the services of an accountant (or tax advisor) to fill in and send your tax return.

  • How to rectify my tax return?

    You have entered your tax return, but you realise you have made a mistake or forgotten to include some information?

    Till July 15 2023

    You have entered your return via MyMinfin (Tax-on-web), via an employee of the FPS Finance or via a public accountant

    You can rectify your return yourself via Tax-on-web. You can only do this once.

    Do not forget to click on "Confirmer pour envoi” (confirm for sending), then on “Envoyer” (send) in order to send us the rectified return.

    Are you entering a joint return? Your partner must also identify themselves again, open the return and click on “Envoyer” (send).

    You have already attached documents? They will be kept. If necessary, you can add additional attached documents.

    You can add or delete part 2 of the return.

    You have sent your return by mail

    Please call your taxation office (centre "Particuliers"/Individuals).

    Do you have to download additional attached documents to your return? Request a correction to your tax return using this contact form (select the subject “Toutes les questions relatives aux impôts, paiements et remboursements”/All questions relating to tax, payments and refunds, then “Impôt des personnes physiques” /Personal income tax).

    After July 15 2023

    It is no longer possible to rectify your return via MyMinfin (Tax-on-web).

    Please call your taxation office (centre "Particuliers”/Individuals).

    Do you have to download additional attached documents to your return? Request a correction to your tax return using this contact form (select the subject “Toutes les questions relatives aux impôts, paiements et remboursements”/All questions relating to tax, payments and refunds, then “Impôt des personnes physiques” /Personal income tax).

  • How can I file the tax return of a deceased person?

  • I have not yet received my pension statement. What should I do?

    More information

  • Can I request more time to submit my tax return?

    Conditions

    Do you think you will not be able to file your tax return in due time? It is possible, in exceptional cases, to obtain an extension of the time limit to file your tax return, on the following conditions:

    • Your application should be justified by ‘force majeure’ or by ‘valid reasons’. The event should be unforeseeable or unavoidable, and should be the result of circumstances beyond your control. Example:
      • you are seriously ill
      • your documents have disappeared as a result of theft or fire
    • Your application must reach us befor the deadline for your tax return expires.
       

    Problems with your identity card or PIN code

    Do you have a problem with your identity card or PIN code and are you unable to access MyMinfin (Tax-on-web)? In that case an extension of the time limit to file your tax return cannot be granted. We advise you to use itsme®.

    How to submit an application

    If you want to apply for an extension of the time limit to file your tax return, call your 'centre Particuliers'. You will need to provide the following information:

    • your last name, first name and national number
    • the method used to file your tax return: paper form or Tax-on-web
    • the reasons justifying your application
    • the date of the requested extension of the time limit

    Your tax office will examine your application and inform you of the decision to accept or reject it.

    If you do not obtain an extension of the time limit

    If you do not obtain an extension of the time limit and if you fail to submit the tax return in due time, you are still requested to file your tax return as soon as possible.

  • How can I anonymously simulate the calculation of my taxes?

    You can do this online via Tax-Calc.

  • How do I check if I have submitted my tax return correctly?

    The status of your declaration is indicated in MyMinfin > My declaration.

    Does it mention that we have received your declaration? Everything is in order and you don't need to do anything else.

    Is this not the case?

    • If you used MyMinfin (Tax-on-web) for your tax return, you must click on "Send" below the summary of your tax return in Tax-on-web.
      If you are filing a joint tax return, you and your partner must both (each in turn) identify yourselves, open the tax return and click on "Send".
    • If you are using the services of an accountant, it may take several days between your appointment and the tax return being sent. Please check again later.
    • If you have sent your return by regular mail, it must first be scanned. This may take a few weeks. Please check again later.

    Have you received a proposal for a simplified declaration? If your details are complete and correct, you don't need to do anything. You do not have to confirm or send anything.

  • I ‘bought back’ my years of study in order to receive a higher pension. How do I declare the contributions that I have paid?

    The amount of the contributions you paid in 2022 is stated on a certificate that you receive from the Federal Pension Service. Declare the amount in the correct code, depending on the category you belong to: 

    • Are you an employee? Declare the amount in code 1257/2257 (box IV, A, 17). 
    • Are you a business manager? Declare the amount in code 1405/2405, (box XVI, 9). 
    • Are you self-employed and do you declare your income in box XVII of the declaration? Declare the amount of the contribution in code 1632/2632 (box XVII, 7). 
    • Are you self-employed and do you declare your income in box XVIII of the declaration? Declare the amount of the contribution in code 1656/2656 (box XVIII, 9). 

    You will then benefit from a tax deduction. 

    More information about ‘buying back’ study years on the website of the Federal Pension Service

  • How do I declare the withholding tax withheld on my exempted dividends?

    You can set off the withholding tax withheld on your exempted dividends against your personal income tax.

    To do so, enter the withholding tax withheld on those exempted dividends in code 1437/2437.

    You can only offset withholding tax in respect of a maximum of EUR 800 in dividends. Since the maximum rate for withholding tax is 30%, you can therefore recover a maximum of EUR 240 of withholding tax deducted (EUR 800 x 30%).  It is therefore best to opt for the exemption of dividends to which the highest withholding tax rate has been applied.

    More information about the exemption for dividends

  • What happens if I submit my tax return late?

    You may receive a fine or a tax increase.

    In addition, we may initiate the ex-officio assessment procedure. With an ex-officio assessment, we have four years to calculate your tax or change the calculation.

  • I'm a Ukrainian refugee residing in Belgium. Do I have to file a tax return in Belgium?

    More information