The thesis is focused on the analysis of legislation concerning loans and usage of contractual undertakings for the purpose of protection of the credit institution in the field of loans provided to corporations. Loan represent an economic tool that enables to provide a temporarily unused financial sources to another subject based on agreed terms and returnable character for the consideration in the form of interest payment. Corporation represent a form of legal person that is based on organized association of persons (physical and legal). The credit institution is exposed to a number of risks in relation to loans business. In the forefront it is exposed to the credit risk of non-payment of the debt by the debtor at maturity date mainly beca...