Core Viewpoint - The article discusses the process and requirements for taxpayers to sign a tripartite agreement online, emphasizing the convenience and efficiency of the new system for tax payment management [5][7][12]. Group 1: Signing Tripartite Agreements - Taxpayers can initiate the signing of a tripartite agreement by clicking "Add" and filling in necessary information such as administrative region, bank type, and payment account [5]. - If the selected bank has enabled direct online signing, taxpayers can complete the agreement without visiting a bank branch [7]. - After filling in the required information, taxpayers must confirm accuracy and submit for verification to successfully add the agreement [8]. Group 2: Account Reporting and Verification - If the bank account associated with the tripartite agreement has not yet reported its account number, taxpayers can confirm the account during the verification process [9]. - In cases where the chosen bank does not support direct signing, taxpayers can either switch to a compatible bank or save their information for later [11][10]. - After signing the agreement online, taxpayers must visit the bank to complete the verification service, and then re-enter the electronic tax bureau to submit for final verification [12][13].