A digital marketing agency in Palermo sat down to crunch the numbers in March. It had 25 employees working from home since the pandemic and had never formalized how expenses were covered: internet, electricity, chairs, monitors. Everyone just managed on their own. Until the first legal notice arrived from a designer who resigned: she was claiming two years of internet reimbursement, a proportional share of electricity, and "intensive use" of her personal desk. The figure: $2.3 million. The agency's lawyer called the owner and said: "Come on, let's sit down. You need to get this in order for everyone before more letters keep coming." This note is about that: how to comply with what Law 27.555 requires of you, without going crazy with the operations.