Paris Region
Paris Region
Discover our open initiatives that empower tax professionals and institutions through shared technology.
Nothing. All Open Tax Initiatives are fully open-source and freely accessible. You’re welcome to use and share them without limitation.
No. Open Tax Initiatives are open-source and freely available to everyone, with no membership or contribution required.
Open source means full access to the code, with reuse allowed under certain conditions. Open data follows similar principles.
In this case, both code and data are free to use and modify, with two key restrictions:
Code (GNU AGPL): Modifications must be shared under the same license.
Data (Creative Commons NC SA): Cannot be used commercially.
This defines what we mean by open source and open data
No. The Open Tax Initiatives do not involve private company or personal data.
They focus solely on collecting knowledge and information from official or public sources, organizing it into structured, usable datasets and interfaces.
Yes. This is one of the key advantages of the Open Tax Initiatives. They are designed to be automation-ready.
Each initiative is built with integration in mind, offering either:
Direct APIs for automating processes using structured data (e.g. calendars, due dates, tax rates), or
Code repositories that can be incorporated directly into your systems (e.g. tax engines, AI components).
Initial idea comes from the Algonomia team, who faced the lack of structure of international tax systems and wanted to create a collaborative framework for the tax community.
They founded the Open Tax Society to ensure a democratic management and a real open and collaborative spirit.
Not directly. The Open Tax Initiatives aim to support an open, collaborative taxtech community. Economic analysis requires transparent, structured tax data to effectively evaluate public policy. By enabling this, the initiatives help improve the measurement of policy outcomes, increase tax certainty, and contribute to greater financial stability for taxpayers.
Funding comes primarily from donations by members and contributors, and potentially from research grants when available.
Yes of course! Either by sharing your expertise or your network, by spending some time and brain matter on the Initiatives or by donating to the project.
Hosting of the various initiatives (will get more expensive as we progressively add AI functionnalities), domain names reservations, legal protection (brands, legal counsel…) and accounting and administrative management of the association (mostly externalized), promotion activies and organization of events.