Have you tried with different browsers / without browser addons that might impact the sites behavior? Otherwise I don’t know either
That is a good idea. Thank you.
I had a broken form on a different website and I used the inspector tool to check the html code. What I didn't know for a long time is that you can actually change the source code and still use the website, so after a lot of trial and error I found one field that was named wrongly, changed the name and was able to send the form.
Although I doubt that the ELSTER form itself is broken, but it's worth a shot.
What about Religion? Iirc you have to choose at least “nicht kirchensteuerpflichtig” if you’re without confession.
It also doesn't accept any of the options.
Germany
The place to talk/ask about stuff in Germany in English.
Wiki: https://lemmygermany.github.io/wiki/
Many thanks to @Vittelius@feddit.de for creating this!