Since the investment bank Lehmann Brothers collapsed in 2008 because of the subprime crisis in the USA, the financial sector and the whole world economy felt into a deep depression. Therefore the voices that say, the Basel II regulatory framework, that was developed from the Basel Committee of Banking Supervision, isnt able to stabilize the banking system, get louder. Because of these circumstances, the Basel Committee of Banking Supervision decided to develop a new regulatory framework to stabilize the financial sector, called Basel III. Thus the equity capitalization, the leverage ratio and the liquidity position of the banks should be more resistant against crisis. In this Master Thesis, the regulatory contents of the Basel II and Basel III frameworks will be discussed; in addition to that, impacts on lending behavior because of the Basel II and Basel III regulatory frameworks will be elucidated, also debilities of the Basel II framework will be assumed. Because of the Basel III regulatory framework, a lot of banking exponents are afraid, that the new regulatory, which will be established in 2014, leads to increased capital costs. Therefore it is possible that the increased capital expenditure leads to a restrictive lending behavior of the banks; in addition to that, it is also possible that credit terms will be more expensive for credit receivers. In Austria, most of the companies are small and medium-sized enterprises and therefore, the loans of the bank are one of the most popular form of debt funding. Therefore its a legitimate question, if small and medium-sized enterprises are able to fund their activities in the future in the form of credit financing? In this context, alternative forms of corporate finance will be discussed, to ensure company activities for the future?