The era of digitalization has made Micro, Small and Medium Enterprises actors experience challenges in facing competition in the field of business and business. The challenge for Micro, Small and Medium Enterprises actors in this case cannot be separated from how Micro, Small and Medium Enterprises actors carry out a recording system or bookkeeping system in every transaction that is carried out where this is one of the most important aspects in the development of Micro, Small and Medium Enterprises. with business legality. The enthusiasm of the people of Kejagan Village, Trowulan Subdistrict, Mojokerto Regency is relatively low for assistance in making Business Identification Numbers. The lack of public enthusiasm in obtaining business identification numbers is due to concerns about paying high income tax and the difficulty of meeting business activity standards if the business is classified as medium, high and low risk. As well as the lack of knowledge about the benefits and advantages of having a Business Identification Number for Micro, Small and Medium Enterprises actors. The implementation of this community service involves 5 Micro, Small and Medium Enterprises in Kejagana Village, Trowulan District, Mojokerto Regency. Where the Micro, Small and Medium Enterprises sector includes: making shoe soles, cutting chicken, modifying used bicycles, scrap plastic, and processed plastic waste. Keyword : UMKM, UKM accounting bookkeeping application, Online Single Submission (OSS) Application
