Group 1 - The article discusses the optimization and upgrade of the online tax payment experience in Liaoning Province, aligning with the latest requirements from the State Administration of Taxation [2] - A key change in the vehicle purchase tax declaration function is that from January 1, 2026, only vehicles included in the new 05 type model catalog will be eligible for tax exemptions [2] - Taxpayers are advised to confirm whether their purchased electric vehicles are listed in the 05 type model catalog before making a purchase to avoid issues with tax exemptions [3] Group 2 - The optimization of value-added tax and additional tax declaration for general taxpayers includes adjustments to the correction declaration query rules, making tax reporting more precise [4] - The editability of specific sections in the supplementary table has been improved to better reflect actual business operations [5] Group 3 - For resident enterprises under account auditing, a new data prompt has been added to assist platform enterprises in accurately filling out their income tax declarations [6] - The system has optimized the comparison rules for employee compensation data to reduce unnecessary verification interference while ensuring data accuracy [7] - The issue of a one-cent discrepancy in the main declaration form has been resolved through updated calculation rules [8] Group 4 - The optimization of withholding corporate income tax reporting and self-declaration for non-resident enterprises has enhanced the comprehensiveness of national taxpayer information display [9] Group 5 - The annual declaration function for resident enterprises has introduced two new data comparison rules to facilitate accurate annual reporting [11] - The optimization of non-tax income general declaration ensures that the payment deadline is locked and cannot be modified, maintaining consistency with fee source information [13] Group 6 - The one-stop tax refund function has been optimized for efficiency and transparency, including intelligent sampling for tax refund applications [17] - The optimization of the property and behavior tax source collection and combined declaration function focuses on improving the accuracy of environmental protection tax reporting [19] Group 7 - The optimization of the land value-added tax final declaration function has improved the accuracy of data collection for final payments [21] - The tax reduction report function has adjusted the rules for the "retirement date" field to ensure standardized data transmission [23] Group 8 - The intelligent declaration self-inspection service has updated the comparison rules for value-added tax and cultural construction fees, enhancing the accuracy of self-inspections [25] - The collection of supplementary information on key tax sources has been optimized to ensure consistency between collected data and reported data [26]