According to the Court of Appeal, the employer is responsible for proving earnings from other work (Il Quotidiano del Lavoro de Il Sole 24 Ore, 21 ottobre 2019 – Enrico De Luca, Antonella Iacobellis)
The Court of Appeal, by ruling no. 25355 dated 9 October 2019, stated that employers that claim earnings from other work or sources to be deducted from the compensation due to employees are required to enclose specific factual circumstances and to provide timely specifications, proving general requests for evidence or requests for evidence for purely ....