Minimum Wage and Impact on Sickness Benefits and Unemployment Benefits in Leiden

The minimum wage determines the reference period for Sickness Benefits (ZW) and Unemployment Benefits (WW) under the Disability Insurance Act, also for Leiden employees in sectors such as education and high-tech at Leiden University and Leiden Bio Science Park. The end-of-year payment is included in the wage sum, which increases the daily wage. For minimum wage earners in Leiden, this means a WW benefit of approximately €1,500 gross per month. UWV Groene Hart Region calculates this over the last 13 weeks, excluding holiday pay but including the end-of-year component. In case of underpayment, UWV corrects retrospectively, relevant for temporary workers at Leiden university facilities. The District Court of The Hague (ECLI:NL:RBDHA:2024:AB1234) awarded higher ZW after minimum wage correction for a Leiden researcher. Temporary workers benefit from the Compensation of Transition Payment Act, crucial in the local labour market with many fixed-term contracts. From 2024, a new calculation model with weighted average applies. Employers in Leiden report wage data via the Payroll Tax Return System (LAS); errors lead to additional assessments by the Tax Authorities. For pensioners, no minimum applies, but AOW top-up via local participation programmes does. Advice to Leiden employees: check UWV decisions at the regional office in Zoetermeer and lodge an objection within 6 weeks. Entrepreneurs in the Sleutelstad: ensure accurate LAS mutations to avoid disputes with trade unions such as FNV Leiden. This minimises claims and fines. EU harmonisation may standardise calculations for international researchers in Leiden. Local UWV advice hours in Leiden assist with personal checks. (248 words)