Meal I play with the idea of a small business of motor vehicle repairs to register the bisssel undeclared work that I do over the year so legally secure (there is only a few hundred euros) So once asked, there is a lower limit in the small business of “at least XY a lot of Euro per month/year” or is that also OK if the times 3 months garkein profit throws because one has just nothing in the circle of acquaintances. Not least a business would be quite good because Registering dealers who only sell to traders is not a matter for me to control, but really only to be able to buy from the shops at all (Winkler, Würth, Metro) Then still as much as an address is then of course my place of residence there are then any regulations on my garage (work or environmental protection) or is that in the small business sector with which hardly any waste occurs?