News & events
Introducing the Open Tax Society – Webinar
Upcoming Webinar: Breaking the Cycle of Black Box Tax Tech with Open Source Date: September 11, 2025Time: 10:00 – 11:00
Walid Eljaafari
18 August 2025
We want to make tax systems more accessible, computable, and collaborative.
We develop open-source tools and frameworks to support professionals, academics, tax administrations, and civic technologists.
Join our initiatives to build a better tax world
A structured global repository of tax obligations and deadlines
Algorithmic, rule-based representations of tax regimes
A centralized dataset of public tax disclosures from MNEs
A free chatbot trained on public data to support research
Transfer pricing comparables shared by practitioners
Make tax systems more accessible, computable, and collaborative
The Open Tax Society is a nonprofit association dedicated to transforming global tax knowledge into open, structured, and computable public infrastructure.
Its approach is rooted in the belief that tax systems should be transparent, intelligible, and reusable.
We believe that TaxTech deserves open-source standards because
Tax knowledge should not be behind a paywall and tax systems need to be better structured.
Tax professionals deserve to know how data are treated and transformed. No to black boxes!
Tax knowledge needs to be usable in automated financial processes to empower tax professionals.
All tax professionals possess a piece of the complex puzzle of tax systems! We all need to contribute.
Enabling the TaxTech digitalization of tax use cases
From automated tax calendars to profound tax modelling, tax technologies require shared knowledge.
What our contributing heroes think of the Open Tax Society
“I truly believe that technology can help make tax systems both easier and safer for taxpayers and also more efficient from the point of view of governments and tax administrations.”
“As a young tax professional I believe that we can collaborate to build share knowledge repositories, instead of falling into the usual trap of relying on external knowledge and data providers.”
“Open source is the gold standard and as an engineer and lead developer at Algonomia, coding tax software for almost a decade, I am certain that it can improve how tax knowledge is built and shared.”
“AI represents the next frontier in terms of technology, and it is our role as data-scientists to ensure that its use contributes to the improvement of tax systems.”
News & events
Upcoming Webinar: Breaking the Cycle of Black Box Tax Tech with Open Source Date: September 11, 2025Time: 10:00 – 11:00
Replay Available: How AI + Open Data Can Transform Global Tax Compliance On June 26, 2025, the Open Tax Society