The aim of the master thesis is to analyse the financial restructuring instruments and to constitute the influencing factors on the financing decision-making process. The focus lies on financial restructuring beyond the insolvency statute. Therefore the master thesis considers all opportunities and threats as well as the legal requirements in respect of the financing decision-making process. Distressed companies are characterised by unwanted and unscheduled processes. They usually evolve largely unnoticed over a longer period, in which the need for action increases and the scope for action decreases. Additionally, management becomes more difficult, due to increased uncertainty, incomplete information and time pressure. Restructuring is the healing process of a diseased and existence-threatened company. The financial instruments primarily serve to ensure the viability of the company and to make further financial restructuring measures possible. They can be roughly divided into measures of shareholders, debt holders and mezzanine forms. The ideal-typical financial restructuring instruments lead to a positive effect on liquidity and an improved capital structure. However, they also have some drawbacks and risks. In this context, mezzanine forms with their considerable scope of action are getting more and more important. An economically justified decision requires a restructuring review with the assessment of the potential and the worthiness of a restructuring, whereby the determination of the future potential of success poses a challenge. It is in the nature of things that nonviable companies disappear from the market. Many external and internal influencing factors can prevent an economically feasible restructuring or liquidation. One main focus lies on the conflict of interests between the involved parties of a restructuring, which is addressed within the framework of agency theory.