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Configuring corporate tax is essential for accurate bookkeeping. This guide will help you set up the correct configurations. We start with the most important steps so you can get started right away.

Table of contents

Configuration Information concerning the declaration

To configure the Information concerning the declaration, you can follow the following article for all tax years:

How do I use and configure Information concerning the declaration (NL) - (FR)

Configuration Corporation Tax 

From the 2024 tax year onwards, template configurations in the Corporate Tax package must be done via a specific user environment.

Accessing the User Environment

You can access this user environment through the office-level menu:

  • Go to Templates -> Clientconfigurations -> Workflowconfigurations -> CorporateTax

Selection Fields for Tax Year and Mapping List

At the top of the form, you will find two important selection fields:

  • TaxYear: Determines the tax year to which the configuration applies.
  • MappingList: Indicates which mapping list is used.

Once the configuration is complete, the values for future tax years will automatically be carried forward from the last modified tax year.

Configurable Fields per Template

Below the selection fields, you will find a list of configurable fields, organised by template as they appear in the package. These fields typically include an account selection, indicated by a ‘#’ symbol in the templates.

  • Entering Multiple Accounts: Separate accounts with a comma (no spaces).
  • Entering Ranges: Use the shorthand notation with two underscores, for example, 120__123 for all accounts starting with 120, 121, 122, and 123.


Other examples of configurable fields include the option "Use fleet," which allows default data from the fleet to be used, and the link to code 1056 to automatically include a negative total of disallowed car expenses in tax code 1056.

Using the BE Silverfin Mapping List

If you use the BE Silverfin Mapping List, you will notice that certain fields have a default value. This is Silverfin’s auto-configuration.

  • Overwriting Values: You can overwrite the default values using the methods mentioned above.
  • Deactivating Fields: You can do this by entering a hyphen ('-').