Step 2 of 4 · ProjectsTax engines
policyengine.py
PolicyEngine's Python package that brings the country models, analysis and charts together.
What it does
PolicyEngine's Python package for tax-benefit microsimulation: run simulations, analyse impacts and chart results for the UK and US, on household scenarios you define or on survey microdata. It needs Python 3.11 to 3.14; UK population data needs a Hugging Face token. The README says results are estimates to validate against the policies in scope and outside calculations; AGPL-3.0.
Where it fits on the map
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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/policyengine-py/)