Become member

You can join Wikimedia CH as an active member and benefactor. You can join by regular mail or electronically.

How to donate


Help us making the world a more open place! We are looking forward to your donation, which helps to operate the Wikimedia projects and to relate them to Switzerland.

All the projects that we support are free from advertisements. Visitors are not charged to edit, read or use the content. We rely entirely on your donations to support keeping the servers running, improve the software and attract editors to maintain the quality of the content.


Donate online Donate with a payment slip Donate via bank transfer
Direct credit card or postcard payment Order a blank payment slip

Account number:

CH26 0900 0000 8576 6601 5

Wikimedia CH, CH-8008 Zurich


Donate on-line Order a payment slip with the form below 


Order a blank payment slip


We send donation certificates (for tax purposes, etc.) at the beginning of the year if your donation was above 200 CHF (tax offices generally do not require a certificate for donations below this amount; if you need one nevertheless, we will gladly send it to you).

Should you have any question about donations, feel free to contact us by contact forms .

However, in order to do so, your complete address needs to be visible on the donation. If you need to receive an immediate confirmation for some reason, please contact us with as many details about your donation (address, date, sum) as possible!