This is correct. If found a club (“Verein” in German) under German jurisdication you will be rehistered as a so called e.V. and get some benefits. The biggest one is that the club will not pay taxes (or at least pay less taxes) for earned money. However, there are some downsides. You have to have a legal statute, you need several formal representatives (one who is responsible for finances, and usually two who are legal representatives of the club). These have to be elected each year on the mandatory club member meeting. The protocol from this meeting has to be signed by a lawyer. AFAIK there are also limits on how much money you are allowed to have your bank account. This due to the the nature of the “e.V.” label, which means that you are a non profit organisation and this means, that you can’t just hoard huge amounts of money.

Ling story short: you have to do quite a lot of bureaucracy in order to save money on taxes. It definitely is nothing that is worth for playing a bit of football and chugging some beers with 3 people every two weeks