Group 1 - The article discusses the procedures for tax-related professional services, emphasizing the importance of accurate invoicing according to the tax classification codes [5][6][10] - Tax service institutions can submit up to 30 tax service agreement information entries simultaneously [7] - The agreement must be confirmed by the client before it can be successfully collected [9] Group 2 - Instructions for submitting service agreement information through the electronic tax bureau are provided, including logging in and entering relevant details [10][12] - After successful collection of the agreement, it takes one day before the invoice can be bound to the agreement [10] - The process for issuing invoices includes selecting the type of invoice and filling in the necessary information [16][19] Group 3 - Taxpayers can query tax payments, penalties, and other tax-related information through the electronic tax bureau [24][36] - The system allows users to filter and view specific tax payment details, including paid, unpaid, and pre-paid taxes [39][41] - The article outlines the steps for querying tax payment information, including selecting the relevant conditions [38][40]