german-income-tax-calculator
Browser calculator for German net income: income tax, solidarity surcharge, church tax, social contributions.
What it does
A single-page browser calculator for Germany (2025) in plain HTML, CSS and JavaScript: enter a gross annual income, tick church tax if it applies, and see income tax, solidarity surcharge, church tax, social contributions and the net income. It runs by opening index.html or on the GitHub Pages demo. The README calls the tax calculation a simplified piecewise model; MIT licence.
Where it fits on the map
Not on the map: inactive and for individual taxpayers.
The map places maintained projects for a company tax department or a tax authority, without a demo or paid-service flag. Everything else stays on the list with its label.
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Of the same kind, for a shared jurisdiction or tax area. Not a ranking.
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Maintain this project?
Link to this page from your README, so readers find the facts, the notes and where it fits. The badge is a small SVG served from this site.
[](https://tax-oss.com/projects/german-income-tax-calculator-basemax/)