OpenFisca model of the French tax and benefit system for microsimulation and rules-as-code
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Other
- Python
- Stata
- Makefile
About OpenFisca-France
OpenFisca-France encodes the French tax and benefit system as a model for the OpenFisca engine. It lets analysts and developers run microsimulation calculations, work with legislation as code, and query French rules without writing the model themselves. The working language of the rules is French.
A public Web API exposes the model with no installation required. You can read a parameter such as the gross hourly minimum wage, inspect a calculation formula, or compute results for a household situation. Endpoints are described in Swagger documentation.
For large batches of calculations or custom extensions on top of French legislation, you can run your own instance. The package requires Python 3.9 and installs on GNU/Linux, macOS, Windows, and WSL through pip or uv.
Key features
- Models the full French tax and benefit system
- Public Web API for parameters, formulas, and situations
- Swagger-documented endpoints, no install required
- Run a self-hosted instance for large calculation batches
- Extend the model with custom legislation on top
Details
- On GitHub since
- 2013
- Language
- Python 3.9, rules in French
- Platforms
- Linux · macOS · Windows · WSL
- Install
- pip or uv
- API
- Public hosted Web API
- Docs
- Swagger legislation explorer