Between €4,000 and €12,000 excluding VAT for an initial assessment alone of a medium-sized event (500 to 2,000 participants). Between €10,000 and €30,000 including an action plan and team support. If the organiser is a company with fewer than 500 employees, Bpifrance's Diag Décarbon'Action can fund 40% of a €10,000 excluding VAT fixed fee for the company's own Bilan Carbone®, rather than an isolated event, leaving €6,000 excluding VAT payable.
Read the source article: An event's Bilan Carbone®: categories, figures and measures