When using Tax calculation, the layout of the Tax declaration is set in GL parameters. It needs to be set for every country with a country code. Sometimes, we have one country with more than one Tax authorities and one should use the layout and format form GL paramters and one should use the standard D365fo layout.

It would be better, if the setup on tax authorities Standard would mean, that the old standard is printed and than layout "parameters" would print the format from GL Parameters.