If you manage several salary companies, it can be interesting to have central files of withholding tax tables.
The principle is that you load the withholding tax tables from a company that updates the central files and that the others point to them. This avoids having to load the tables in all the companies.
To do this, you need to create a dedicated directory and set up the companies so that they point to it (company settings - Import-Export paths and classes tab):
Enter the same path in the companies that will use this same data source.
Each year, the withholding tax table of the desired cantons will have to be loaded once in one of the companies so that everything is up to date.