Group 1 - The article discusses the handling of sales discounts and the process for correcting blue invoices, indicating that taxpayers do not need to enter discount rates but should select the corresponding project name and input the correct red invoice amount [4] - It provides guidance on how to manage VAT special invoices that fall under the category of abnormal vouchers, emphasizing the importance of proper handling [5] - The article outlines the differences between overpaid tax refunds and tax reductions, detailing the conditions under which taxpayers can request refunds for overpaid taxes within three years of payment [12][13] Group 2 - The article introduces the "Tax Payment Credit Management Measures" set to take effect on July 1, 2025, explaining the process for repairing tax payment credit after a taxpayer has committed a breach [15] - It specifies that taxpayers can apply for credit repair if their breach has been recorded, and the tax authority will reassess their credit level within 15 working days of receiving the application [16] - The article mentions that tax authorities will expand the scope of credit repair without requiring applications based on the collection of credit information [17]