Sick leave changes: What employers need to know?

A significant change to the Social Insurance Institution’s (ZUS) medical certification process is set to launch later this year, promising faster decisions and more efficient sick leave checks. However, a key change allowing employees to remain on sick leave at one company while working at another will not take effect until 2027. The amendment to the Social Insurance System Act and certain other acts, which introduced these changes, was published in the Journal of Laws on 12 January 2026. – Sławomir Paruch and Jan Kozakoszczak comment to Rzeczpospolita.

Full article in Polish available: here.