American Journal of Business and Operations Research AJBOR 2692-2967 2770-0216 10.54216/AJBOR https://www.americaspg.com/journals/show/1557 2018 2018 Head of the Accounting Department, Tashkent State University of Economics, Uzbekistan Abdusalomova N. Bakhodirovna Researcher at Accounting Department, Tashkent State University of Economics, Uzbekistan E. M. Shukhrat kizi This article is devoted to the issues of regulating tolling operations implemented in the process of receiving raw materials supplied by the customer, their processing and subsequent return of products to customers. In addition, the article investigates the procedure for document flow, obligatory requisites of source documents drawn up at the customer and during processing, as well as the procedure for their compilation, acceptance, and storage. 2022 2022 49 57 10.54216/AJBOR.080205 https://www.americaspg.com/articleinfo/1/show/1557