OpenFisca

@openfisca
31 Followers
4 Following
12 Posts
The most widely adopted free and open-source engine to write rules as code.
🌐openfisca.org
💌[email protected]
OpenFisca5d ago

There are still a few tickets left for in-person attendance to our yearly conference —and many for the live-streamed keynote. Register now!

Big thanks to our sponsors that enable us to offer this #RulesAsCode event free of charge:
‱ Salsa Digital
‱ @inria (@HenriVerdier)
‱ Assemblic

Show threadOpenFiscaMar 6

This illustrates once more how #OpenSource in #RulesAsCode can yield value beyond what was initially planned: from the initial use case of advising Members of Parliament on the budget of the State to supporting broader democratic debate with data!

All datasets featured for these elections: https://www.data.gouv.fr/posts/jeux-de-donnees-liees-aux-elections-municipales

data.gouv.fr

Plateforme ouverte des donnĂ©es publiques françaises : tĂ©lĂ©chargez, partagez et rĂ©utilisez les donnĂ©es ouvertes de l'État et des collectivitĂ©s

data.gouv.fr
OpenFiscaMar 6

đŸ—łïž This weekend, đŸ‡«đŸ‡· votes for mayors
 and OpenFisca-provided #OpenData is featured by @datagouvfr to help with decision-making!

The amounts of budget contributed by the national government to every city in France (“dotation globale de fonctionnement”) has been consolidated for years by the LexImpact team at the AssemblĂ©e nationale as parameters in the OpenFisca-France model, and is now available as an independent dataset.
https://www.data.gouv.fr/datasets/montants-des-dotations-de-fonctionnement-aux-communes

data.gouv.fr

Plateforme ouverte des donnĂ©es publiques françaises : tĂ©lĂ©chargez, partagez et rĂ©utilisez les donnĂ©es ouvertes de l'État et des collectivitĂ©s

data.gouv.fr
Show threadOpenFiscaFeb 16
Until November, solutions were only listed through aggregation of national portals. In the last quarter, the @European Commission decided to expand sourcing by identifying “standout solutions” that go way beyond national usage. We are proud to be part of the first cohort to be directly listed as a solution for EU-wide (and beyond!) interoperability for #RulesAsCode, alongside other widely recognised #DigitalCommons such as @decidim and @consuldemocracy.
OpenFiscaFeb 16
🌟 OpenFisca is now featured as a “standout solution” in the đŸ‡ȘđŸ‡ș #OpenSource Solutions Catalogue for interoperability!
https://interoperable-europe.ec.europa.eu/eu-oss-catalogue/solutions/openfisca-core
The EU OSS Catalogue, launched in March 2025 on the #InteroperableEurope Portal, showcases over 800 open source solutions developed or used by public administrations across Europe. It helps Member States implement the #InteroperableEuropeAct by sharing and reusing interoperability solutions.
OpenFisca Core

Interoperable Europe Portal
OpenFiscaDec 22
This 5 min video explains how to restore data and pull requests that were erased and closed during the #ShaiHulud 2.0 #cyberattack, a necessary step to recover for a large community like @openfisca.
https://videos.lescommuns.org/w/uh4zBGQ2BmjHUoG3oJfQt4
After an immediate reaction to isolate and confine, we reviewed all access rights to decrease our attack surface. We are now focusing on supporting our global community in restoring data and cleaning up attack leftovers
 and maybe help other #DigitalCommons along the way 🙂
How to restore pull requests erased by a Shai Hulud 2.0 attack

PeerTube
OpenFiscaJul 18, 2025
đŸ‡ŻđŸ‡” ă‚ă‚ŠăŒăšă†ïŒ We are very happy to share this report written for GovTechTokyo, the Tƍkyƍ prefecture #DigitalTransformation agency analysing the potential of OpenFisca in Japan.
https://note.govtechtokyo.jp/n/na5f5c6f51be0
OpenFiscaJul 17, 2025
You can now watch in replay the official launch event of the OpenFisca Association and discover the path for further adoption of #RulesAsCode, the governance of transformative #DigitalCommons and the state of OpenFisca adoption around the world.
https://videos.lescommuns.org/w/3w9FrFgKFEwceG1Kn17xfA
Thanks again to our speakers for sharing their insights: Ambassador @HenriVerdier; CEO of @dpgalliance Liv Nordhaug; Senior G7 Researcher Jess Rapson; CEO of GovTechTokyo; association executive director @MattiSG!
OpenFisca Association Official Launch Event

PeerTube
Show threadOpenFiscaMar 11, 2025
The morning launch event will be followed by an in-person community gathering.
Register here: https://opencollective.com/openfisca/events/community-gathering-1282dd36
We're looking forward to reuniting in Paris!
Community Gathering - Open Collective

Meet fellow OpenFisca users and contributors

Show threadOpenFiscaMar 11, 2025
‱ Jess Rapson, G7 Senior Researcher, will discuss the economic significance of Rules as Code, particularly in the public sector, with a focus on its role in enhancing international cooperation among G7 countries.
‱ Founding Members from all around the world will present the level of adoption in different jurisdictions.
‱ @MattiSG, Executive Director of the OpenFisca Association, will present the Association, its members and governance, the benefits in joining and the upcoming actions.