I get that this gives you less liquidity personally, but (a) you're only required to pay in half, i.e., 6,250 EUR each, and (b) this money isn't gone, and you don't lose the ability to recover it should you decide to liquidate the company later. As others have pointed out, you can use that money to pay costs associated with the founding (e.g., the notary) and also expenses required to maintain the company (IHK dues, bookkeeping, etc.).