WISO Steuer 2020

WISO Steuer 2020 is a macOS application for preparing and filing a German income‑tax declaration for the fiscal year 2019. It guides users through the required forms, allows the import of previous‑year data with a single click, and performs a validation check before submission. The program runs locally on a Mac but can also synchronize data across devices, and it connects to servers located in Germany for processing.

A notable feature is an integrated tax‑AI that can automatically fill portions of the return based on the information supplied, reducing manual entry. The software includes a final compliance check to help ensure the filing meets statutory requirements. It is positioned as a stable, fully functional solution for individuals who need to complete their 2019 tax declaration on a Mac.