The 2020 Tax at source tariff can be downloaded and installed directly from the SwissSalary Store (organization). Installation takes around 8 - 10 minutes for over 3 million data records.
Please note that 19 of 26 cantons have published new tariffs for 2020.
Note: For SwissSalary 365 customers (PaaS cloud), the tariffs will be updated at the beginning of January 2020. All other customers can install the tariffs themselves or contact their Dynamics NAV/365 partner.