Group 1 - The article provides a guide on how to check whether a client's invoice has been selected for tax deduction through the electronic tax bureau or its app [1][9] - The steps to query invoices include logging into the electronic tax bureau, navigating to the invoice query section, and selecting the appropriate query conditions [1][3] - Users can view detailed information about the invoice status by clicking on the "details" link, which shows the current label information of the selected invoice [3][5] Group 2 - The article emphasizes the importance of understanding tax benefits and ensuring compliance to effectively utilize available tax incentives [14][15] - It discusses the differences in tax treatment for domestic and foreign R&D expenses, highlighting the calculation of deductible amounts for both types [14][17] - The article outlines the process for foreign investors to report reinvestment information and the necessary documentation required for tax credit eligibility [17][20]

Group 1 - The article discusses various scenarios related to invoice verification and processing in the tax system [4][5][6] - It emphasizes the importance of checking the accuracy of invoice details such as taxpayer identification number and name [4] - The article outlines specific steps for handling agricultural product invoices and correcting any misoperations related to invoice deductions [5][6] Group 2 - The content is sourced from the Shanxi Taxation Bureau's promotional materials, indicating a focus on taxpayer education and interaction [8][11] - It encourages users to engage with the tax system through a digital platform for better service and satisfaction [11]