Thanks :) I would never have thought anyone would actually notice the silly language joke at all... If you happen to know Dutch freelancers who still do their accounting in Excel, you know where to send them to ;)
Hi! ZZP-er, still using Excel. (Well, Google Docs).
However, my first language is English. I do struggle a lot with Dutch taxes as my speaking is generally better than reading/writing. I wonder if it would be worth you offering an English localization of your site? I know there are a lot of ZZP'ers in the Netherlands whose first language is not Dutch (my gf works for a recruitment company, and they recruit heavily from Italy, Spain, and India).