Regarding the tax consultant, yes it's a whole other topic/specialization. Your current one knows how to operate within the German tax system, but what you want it someone who know how to operate internationally. The keywords are "Steuergestaltung" or "Internationale Steueroptimierungen".
It's a bit of a chicken or egg problem, because if you want to leave as soon as one product 'is stable' you might actually get the problems, this really depends on your setup of the product and how much money you are making. Because the Finanzamt always tries to argue, that you built something based on your German 'brand', therefore they will tax you. So it's actually better to leave without having a super stable product, as they then have nothing or too little to tax that it becomes interesting.
I just recently watched this video from a fitness youtuber who had this problem of wanting to leave Germany, he operates GmbH's but it explains the thought process of the Finanzamt very good youtu.be/Ho86X-X2l4c.
I also have a friend who actually knows a Steuerprüfer at the Finanzamt who checks smaller businesses and Einzelunternehmen and they said as soon as you make around 100k - 150k€ Bruttoumsatz you are on the radar and if you have rising Umsätze for several years the system starts doing more checks and the likelyhood of them wanting to check you rises (this is regarding a Steuerprüfung, not leaving, but I assume once on the radar, always on the radar).
So, for myself I came to the conclusion as a Einzelunternehmer it's ideal to make well below 100k€ at the point of leaving Germany and ideally not having significantly/suddenly rising Umsätze several years in a row.
Regarding the tax consultant, yes it's a whole other topic/specialization. Your current one knows how to operate within the German tax system, but what you want it someone who know how to operate internationally. The keywords are "Steuergestaltung" or "Internationale Steueroptimierungen".
It's a bit of a chicken or egg problem, because if you want to leave as soon as one product 'is stable' you might actually get the problems, this really depends on your setup of the product and how much money you are making. Because the Finanzamt always tries to argue, that you built something based on your German 'brand', therefore they will tax you. So it's actually better to leave without having a super stable product, as they then have nothing or too little to tax that it becomes interesting.
I just recently watched this video from a fitness youtuber who had this problem of wanting to leave Germany, he operates GmbH's but it explains the thought process of the Finanzamt very good
youtu.be/Ho86X-X2l4c.
I also have a friend who actually knows a Steuerprüfer at the Finanzamt who checks smaller businesses and Einzelunternehmen and they said as soon as you make around 100k - 150k€ Bruttoumsatz you are on the radar and if you have rising Umsätze for several years the system starts doing more checks and the likelyhood of them wanting to check you rises (this is regarding a Steuerprüfung, not leaving, but I assume once on the radar, always on the radar).
So, for myself I came to the conclusion as a Einzelunternehmer it's ideal to make well below 100k€ at the point of leaving Germany and ideally not having significantly/suddenly rising Umsätze several years in a row.