Calculate your net salary and see exactly what you have left of your gross salary. With WISO salary you are perfectly prepared for your next salary discussion or when changing jobs. WISO Salary calculates the deduction of taxes and social security contributions for the years 2021 to 2024 to the nearest cent. It's that easy: Just a few pieces of information are enough: You enter your gross salary, select your tax class, state your year of birth and federal state - and whether you pay church tax