She is notable for her published works, documentaries, the TaxCOOP conferences she co-founded and her various media interventions related to tax justice, as well as philanthropic and environmental taxation.
In 2003, Brigitte Alepin published her first book, the best-selling Ces riches qui ne paient pas d'impôt (The Wealthy Who Pay No Taxes).
She has been consulted by politicians who wish to know her opinion on various tax matters and has acted as an expert witness on various committees of the House of Commons and the Canadian Senate.
In 2016, Brigitte Alepin won a Gémeaux Award[5] from the Canadian Academy of Cinema and Television for co-writing the film The Price to Pay.
In 2017, Brigitte Alepin acted as a collaborator and advisor for the Commission sur les Finances du Québec in the development of its "Action plan to ensure tax equity" in Quebec.
In 2018, she co-authored the study “Family taxation: a model to redefine”, in collaboration with Raymond Chabot Grant Thornton and the Université du Québec à Montréal.
In 2021, she signed the chapter “Treasury efficiency of the Canadian tax regime for private foundations and their founders” in the book The Routledge Handbook of Taxation and Philanthropy.
The TaxCOOP conferences were presented in Montreal in 2015 and 2020 and within international organizations during the years 2016 (World Bank),[8] 2017 (United Nations), 2018 (OECD) and 2019 (COP25 in Madrid).
In May 2017, Radio-Dodo organized a humanitarian mission in Gaziantep, where the administrator, Brigitte Alepin, gave toys and radios to Syrian children.