In your payslip, there's a difference between statutory and non-statutory supplemental vacation days (wettelijke en bovenwettelijke vakantiedagen), but what does this difference mean? You can read a summary of it below.
The amount of vacation days that an employee, and also a flex worker, is entitled to, is legally four times the agreed work period per week. With a full time employment of five days a week, it amounts to twenty vacation days. These are the legal (wettelijk) vacation days. Legal vacation days expire half a year after the calendar year in which they were granted. This does not count when the flex worker had reasonably not been able to take up these vacation days - e.g. due to a serious disease. Legal vacation days that are built up in 2018 expire per July 1, 2019.
Usually, an individual employment agreement, personnel manual or cao grants more vacation days. These days are called non-statutory supplemental (bovenwettelijk) vacation days. With JAM!, we work with the ABU cao. In this cao, a full time flex worker is entitled to 25 vacation days a year. That means that five of those days are statutory. These vacation days expire after five years after the last day of the calendar year in which they were granted. Non-statutory supplemental days that are built up in 2018 expire per January 1, 2024.