Support

If problems arise during the validation, you will find current information for the online interface of the BZSt https://evatr.bff-online.de/eVatR/ For example, if the result says that the validation request cannot be processed at the moment.

If you need further help with the Comsol USt-ID validation, you can reach our support via our online form or by e-mail.

Your request via Online-Support-Form

Your request via E-Mail

We will answer your request within two working days at the latest.