The internship was conducted at Tax Consultant Office of Edy Gunawan and the author was positioned in tax service division. There were some of tasks performed during the internship related to accounting and tax, such as recapitulate PPh 21, VAT, PPh 23, PPh 4(2) and bank statement, input VAT based on tax invoice through e-SPT, prepare Surat Setoran Pajak (SSP), pay tax bill to the bank, report tax to Kantor Pelayanan Pajak (KPP), recapitulate employees’ data, sales, purchase, and cash disbursement. During the internship, several obstacles were found such as uncomplete documents, error in calculation of PPh 21, and writing in tax invoices were not visible. The solutions to these problems are ask for the complete documents, consult ...