If you need a fast solution look at buying a pre-created so called shelf company (GmbH). https://www.foris.com/en/ https://www.foris.com/en/ will sell you a Vor

If you need a fast solution look at buying a pre-created so called shelf company (GmbH). https://www.foris.com/en/ https://www.foris.com/en/ will sell you a Voratsgesellschaft including bank account filled with 25k Euro for 30k Euro. They have documents ready for your notary. At your local notary you change the company name, address, shareholders, it 1-2 signatures. Then you transfer ownership of the bank account (new bank cards, new mobile app credentials) and you're ready for business and can sign contracts in the name of the new company. Takes 3-5 days. Next you find an accountant. But payroll setup, health insurance setup, accident insurance (required in Germany but very cheap), local tax, VAT tax setup can wait. You're not really allowed to use the 25k to pay your own salary anyway, only business expenses. Expect ongoing 500-1000 Euro/month for a GmbH accountant.