Hi Daniel,
Thanks for this reply, but the problem with the standard report as provided by the developer is, that the way the VAT is calculated, is wrong. See and read the topics Why do the costs on a journal entry show in the net sales column? and VAT Declaration for NL not populating correctly
As long as it is not a custom report, I think it is the developers responsibility to take care that the report is correct. Custom reports however are a different kind of report and there it is the users responsibility for what they create.