I founded a UG in december for 250€ (beglaubigt.de) + 180€ (notary but w/ Mustervertrag) + 150€ (round about, not a 100% sure, Handelsregister) and 35€ Gewerbeanmeldung (which isn't even tied to founding the company itself relly). Still waiting for my UStID tho. supposedly exists since january, but they aren't able to deliver the letter or tell me on the phone ...