Group 1 - The article discusses the management interface for tax-related service agreements, highlighting the ability to modify or add agreements within the system [2] - It outlines the steps for adding a new service project related to tax matters, specifically focusing on invoice services and granting permissions for electronic invoice platforms [2] - The article emphasizes the importance of confirming the accuracy of the information before submission in the tax service management system [2] Group 2 - The article clarifies that individuals who pay off their housing loans early are not eligible to continue enjoying the special additional deduction for housing loan interest [8] - It details the calculation period for the housing loan interest deduction, which lasts from the month the loan repayment begins until the loan is fully repaid, with a maximum duration of 240 months [8] - Instructions are provided for modifying the actual loan term in the personal income tax app to reflect the early repayment of the loan, which will automatically change the validity period of the deduction [8]