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Configure the ‘FOS’ communication profile

If you exchange ‘Loonheffing’ messages with the tax authority that are larger than 2 MB, you must use the ‘FOS’ communication channel (via FTPS). ‘Loonheffing’ messages include wage declarations, annual wage statements and ‘Eerstedagsmeldingen’.

To configure and use this component, you have to meet the following conditions:

  • You have a government-issued PKI certificate. You can request these certificates from one of the following service providers: If you already have a Digipoort certificate, you can also use this for the exchange via ‘FOS’.
  • You have a ‘FOS’ account with the tax authority. Existing users continue using their existing “FOS’ account. New users can request a ‘FOS’ account via the tax authority website.
  • On the server that is used for the exchange, the port 6374 and the 32000-32199 port range should be open for FTPS traffic with initiated by the Profit COM+ user. It is sufficient to open the ports for outward-bound traffic.

To configure the ‘FOS’ communication profile:

  1. Go to: General / Communication service / Communication profile.
  2. Open the properties of the communication profile. Large message channel (tax authority ‘FOS’).
  3. Go to the tab: Settings.
  4. Enter your user name and password for your ‘FOS’ account.

    If you enter your user name, it may be automatically supplemented with the designation ‘‘. This means that during the login the message 'Not logged in (code=530)' can appear. In that case, delete the automatically added designation and try again to log on.

  5. Go to the tab: Certificate.
    1. Click on: New.
    2. Enter the description.
    3. Select the certificate file and enter the password.
    4. Click on: Finish.
  6. Go to the tab: General.
  7. Deselect the Blocked check box.
  8. Click on: OK.

To test the ‘FOS’ communication profile:

  1. Select the Large message channel (tax authority ‘FOS’) communication profile.
  2. Click on the action: Test connection.
  3. Once a connection has been established, the tax authority activates your PKI certificate for your mailbox. You receive a letter to confirm this. Once you have received this confirmation, you can use the ‘FOS’ to exchange wage declaration messages.

See also

Directly to

  1. Configure the communication service
  2. Set up the communication environment
  3. Configure the exchange with the tax authority
  4. Configure the UBL communication profile
  5. Configure the Syntrus Achmea communication profile
  6. Configure a BeFrank communication profile
  7. Configure the AFAS Personal communication profile
  8. Configure Digipoort


Communication service

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