漫解税收|请注意！出售研发活动中形成的产品和废料时，研发费用加计扣除冲减要准确

Group 1 - The article discusses the importance of correctly handling R&D expenses for tax deductions, highlighting that materials consumed during R&D activities must be properly accounted for [2][4] - It emphasizes that any materials directly used in successful product development should be deducted from the R&D expenses, as per the regulations [2][4] - The article points out that any waste or by-products generated during the R&D process should also be considered, and the corresponding costs need to be managed accordingly [2][4] Group 2 - The policy reference is the announcement from the National Taxation Bureau regarding the scope of tax deductions for R&D expenses, which outlines the necessary compliance for companies [4] - The article serves as a reminder for companies to be aware of the specific requirements for R&D expense deductions to avoid potential issues with tax authorities [2][4]