During the Bruce Nauman and Kirchner and Nolde exhibitions (until Dec 5, 2021), there’s an additional one-off surcharge of €3. 

Incidentally, the Stedelijk Museum asks for a temporary surcharge. Exhibitions like Bruce Nauman and Kirchner and Nolde are unique because of the many international loans and therefore expensive to make. We do find it important though to bring these large, international exhibitions to The Netherlands. The surcharge helps to make these exhibitions possible. The surcharge is a one-off. If you visit the museum again during the running time of the Bruce Nauman exhibition, you do not have to pay the surcharge again. Make sure to bring the voucher that is handed out to you during your first visit.

More info: stedelijk.nl/surcharge