At this page you can apply for an ISCAR membership or renew your membership. If you landed here through the link in the renewal email, your information should be filled out already. If you have an account for this website login first and then navigate back to this page (see membership menu). Otherwise, use the email address you are registered with for ISCAR.
Payments are handled by Paypal. The preferred payment method is creditcard. It is also possible to pay through your Paypal account, if you have one (Paypal has the option to connect your own bank account to Paypal see here). Payments by bank transfer are also possible. In that case tick the box "pay later" during the payment process.