Everything you can do with OpenFisca
For economistsOpenFisca allows you to use survey data to simulate the impact of a reform on a given government’s budget and on a population’s standard of living.
For public administrationsOpenFisca allows you to stop building your micro-simulation software and tax & benefit calculators on your own. Instead, contribute to OpenFisca, collaborate with other administrations and reduce the bill for the taxpayer.
For developersOpenFisca allows you to easily create web applications based on your simulation results, thanks to the web API. You can build a great variety of other services by coding formulas, hosting your own instance or building your own extensions.
How does it work?
OpenFisca is a free, reusable, modular open source project. It allows writing rules as code to improve the transparency of, and access to, the law.
- Import input data
- Calculate a sitation, write new laws or simulate reforms
- Code custom extensionsTest the web API
An international open source community
OpenFisca has contributors worldwide! Join a community of economists, researchers, developers and law experts who get involved in turning law into code.