The Lorentz Casimir Lyceum asks the parent(s)/caregiver(s) of students for a voluntary parental contribution in order to fund activities and facilities that are not paid for by the government, but are seen by the school as an important addition to our education. The table below shows the amounts of the voluntary parental contribution:
| Excursions | € 30,00 |
| General matters: extracurricular activities (cultural, sports, olympiads), parent committee, student council | € 40,00 |
| Total | € 70,00 |
| Yearbook contribution (havo 5 and vwo 6 only) | € 18,00 |
| Introduction fee (bridge class only) | € 35,00 |
| Foreign travel | Variable |
For (foreign) trips, parents are asked for a voluntary contribution in order to organize these trips to cover costs. If insufficient parents pay this voluntary contribution, the school may choose not to allow the trips to take place.
Examination fees for enhanced language instruction Cambridge and DELF Scolaire do result in a mandatory contribution by parent(s)/caregiver(s) upon participation. The student can choose to participate. The examination fees are remitted by the school to the institute conducting the exams.
Invoicing of the voluntary parental contribution is done through the WisCollect digital billing system in October. All other activities (such as trips abroad, Cambridge and DELF Scolaire exam fees) are billed separately through WisCollect. All contributions are voluntary except Cambridge and DELF Scolaire exam fees.