Solve problems What is eIDAS? Why do I have to identify myself with eIDAS? What do I need to log into eIDAS (for the first time)? Which European electronic identification means can I use to log in? I do not know my Belgian identification number. How can I use the Belgian government's online services from another European country? Where can I find my national registration number? Where can I find my BIS number? Will my details be kept safe? I get an error notification that my identification cannot be processed automatically.