The financial security of trading companies depends on the management of their assets, liquidity and solvency. The authors in this article recommend the formation of an internal control system using the COSO's international approach (The Committee of sponsoring organizations of the Treadway commission (COSO), which will help ensure efficiency a company's activities on the market. When companies are planning their business activity they may not be able to adequately assess the current level of financial security of potential foreign counteragent. This article describes the results of improved internal control of receivables using COSO's international approach. The organization may lack its own financial resources if the turnover period for receivables is high and dynamics increase. In this case, companies usually resort to short-term loans or delay payments to their creditors. Such a situation violates trust relations with suppliers, financial sanctions arise for delaying payments and other negative consequences affecting the company's business activities. Therefore, the solvency of the business entity and its business reputation depends on how quickly the funds invested in receivables turn into real money. 1. Introduction