The Slovenia Insurance Supervision Agency published an introductory explainer on how Slovenia’s pension system works, framing it around demographic trends that are increasing pressure on mandatory pensions and elevating the role of additional retirement saving. The article summarises the legal and structural set-up under the Pension and Disability Insurance Act (ZPIZ-2), describing a three-pillar model: the first pillar as mandatory pension and disability insurance covering employees, the self-employed and farmers; the second pillar as supplementary pension insurance arranged through employers and mandatory supplementary insurance for certain professions (occupational insurance); and the third pillar as individually initiated supplementary pension insurance alongside other forms of retirement saving. It also highlights the “partial pension” mechanism under ZPIZ-2, under which an old-age pensioner who remains in mandatory insurance can, after applying, receive 40% of the full old-age pension during the period of mandatory coverage. Further instalments are planned over the coming days, starting with a more detailed look at the first pillar and later covering the second and third pillars.