Faultless addressing for quick delivery

Information and handy tools for addressing mail correctly.


Faultless addressing for quick delivery

Our employees gladly ensure that every postal item arrives at the correct address as quickly as possible. To make this possible, you must write the full and correct address in clearly legible letters on the envelope.

    Handy tools for the correct address

    Validate an address

    Validating an address

    Check and approve the spelling of an address.

    Use the tool
    Look up a postcode

    Look up a postal code

    Quickly find a postal code or the corresponding address.

    Use the tool
    Add-in Word

    Add-in Word

    Format and validate addresses in Word.

    Use the tool

    Handy tools for professional use

    Webservice et widgets

    Web service and widgets

    Integrating automatic address validation into your IT systems.

    More about web service and widgets


    Validating and improving address files (.xml or .txt) for Mail ID users.

    More about OptiAddress

    How do I write an address correctly?

    An address consists of at least 3 and maximum 5 address lines:

    1. Name of person or company
    2. Extra details such as attn
    3. Street name and house number, possibly followed by the word 'box' and the box number.
    4. Postcode and city
    5. Country (only for foreign addresses)

    Place a space between the postcode and the municipality. Write the city in capital letters.

      Where do I write the address?

      Write the recipient's address on the front of the envelope, in the address box. Write the address parallel to the longest side of the envelope and align it on the left.

      All the information and practical tools to correctly address your mail

      1. Zone for the recipient’s address box
      2. Recipient address box
      3. Franking and cancelling zone
      4. Free zone for the sender
      5. Return address zone (verso)
      6. Indexation zone: zone used by the sorting machine to print a barcode : must stay free or white
      7. Semi-free zones for the sender (no text which can be confused with an address)


      Write the return address on the back flap of the envelope. If it is not possible to write it on the back, then write it on the front in smaller letters than the forwarding address, horizontal in the upper left corner or vertical on the left edge.


      All the information and practical tools to correctly address your mail

      All the information and practical tools to correctly address your mail

        Maybe you may have one of the following questions

        The price of your letter depends on:

        • the speed you desire (priority or non-priority delivery)
        • the size and weight of your letter

        Use our online tool to calculate the price of your letter quickly. Enter the destination and the weight of your letter to find out how many and which stamps to put on your letter.

        bpost has stamps for shipments outside Belgium. There are stamps for Europe (Europe) and for the rest of the world (World).

        You can buy them at our Postal office and Postal Points and in our eShop.

        The number and type of stamps for your letter sent abroad depends on the size, weight and destination of your letter.

        Use our online tool, enter the destination and weight, and discover which stamp(s) you need for your letter sent abroad.

        Just like with electronic addresses, one letter can affect the proper delivery. Validate your address to be sure that it is known at bpost.

        The photo below shows how to write the address of the addressee correctly. Don't forget to mention the name of the addressee (required) and to put your own address on the back of your letter (recommended but not required).

        Adres brief EN

        The number of stamps on your non-standardised letter depends on the weight of your letter. Look at the table on our website or calculate the price with the online tool.