External factors, such as economic sanctions, financial crisis, and other distresses, capitalize on a need of innovations for efficient operations in economies around the world. In domestic economies, transaction costs is an important aspect for companies, so, to be efficient, companies need to consider transactional component for investment projects. Nevertheless, the assessment of transaction costs is a matter of uncertainty for many companies. The purpose of the study is to examine the "hidden" factors that lead to the increase in transaction costs and, based on this information, optimize the transaction component of company's business processes. Using evidence from Russia's economy, the study will focus on the development of a methodological approach to the evaluation of transaction component in business processes, as well as the implementation of these findings in transaction analysis of business performance. Authors developed the accounting center of transaction costs, the structure of transaction costs accounting system, and the function of a department that is responsible for the transaction costs accounting for an enterprise in Sverdlovsk region.