Supreme Court rules that a regulated bonus must be included in sick pay base if regulations grant it during illness.

The Supreme Court of Poland partially allowed the insured's appeal against the Social Insurance Institution's decision to exclude a specific bonus from the sick pay calculation base. The Regional Court had initially ruled that the bonus was discretionary and should not be paid during illness, but the Supreme Court found the company's bonus regulation objectively defined the right to the bonus, including during sick leave. Consequently, the Court held that because the regulation explicitly granted the bonus during illness, it cannot be excluded from the sick pay base, thereby overturning the lower court's assessment.