The internship was conducted at PT.Bintang Mandiri Konsultama in Accounting and Administration division. The tasks given during the internship are make the income statement, calculating the income taxation, filling the form of Tax Amnesty, filling the form of invoice, recap of tax invoice, recap of checking account. During the internship, most of the tasks can be executed properly. But there were some difficulties experienced during the work. Constraints exist because their data wass unclear that the job is a bit hampered. Every difficulties are solved by asking the related staff in related job. Therefore, to confirmed the presence of unclear data will obviously be a solution found by Mrs. Herwin as the employer