The updated ATECO codes, replacing the 2007 version to reflect modern economic sectors, become effective on January 1, 2025, and are mandatory for tax and administrative purposes starting April 1, 2025, impacting businesses, professionals, and administrations regarding tax compliance, VAT, and income tax declarations.
Source: commercialistatelematico.com
Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.
