With the welfare state under pressure from population ageing and chronic illnesses jeopardising the labour market inclusion of an increasing number of workers, measures that promote reintegration after sick leave are crucial. This policy brief outlines recommendations for social partners on how they can contribute to supporting the return to work of individuals who have become inactive after a serious illness. It builds on research findings gathered through the “Negotiating return to work in the age of demographic change through industrial relations (REWIR)” project (https://www.celsi.sk/en/