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 in Switzerland (using ebanking on the Internet or using a payment slip)

If you'd like to make a donation by payment slip, we can send you one or more preprinted payment slips. Please fill the form at the bottom of the page. Of course you can also use an empty payment slip which you get at every post office and fill it manually.

  • Account number : 85-766601-5
  • IBAN : CH26 0900 0000 8576 66015
  • Remittee: Wikimedia CH, 8008 Zürich


International donations


  • IBAN : CH26 0900 0000 8576 66015
  • Remittee : Wikimedia CH
  • CH-8008 Zürich



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).

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!

Should you have any question about donations, feel free to contact us by e-mail or using the contact forms.