The annual membership fee for the year 2020 is € 27,50; family members pay € 12,50 (they are regular members, but do not receive the Announcements leaflet). New members also have to pay an extra enrolment fee (€ 5,-).
Foreign members pay an extra € 7,50 because of the extra costs.
People who become members after July 1th, pay for the ongoing year half of the annual membership fee, provided that they pay the membership fee for the next year at the same time.
New members, resignation, change of address: use one of these forms (in Dutch):