Costa Rican law stipulates that individuals earning both a salary as an employee and income from self-employment may be required to make double contributions to the Costa Rican Social Security Fund (CCSS). This means they must pay contributions both as an employee, deducted from their wage, and as an independent worker, based on their declared income. The regulation clarifies the obligations for those with dual income streams. Individuals in this situation need to be aware of these requirements to ensure full compliance. Failing to accurately report and pay contributions can result in penalties. The CCSS aims to ensure comprehensive social security coverage for all workers, including those with multiple income sources. Understanding these rules is crucial for both employers and employees operating under this dual income arrangement.