1. Confirm sales discount amount: confirm the amount and reason of sales discount according to sales contracts, invoices, receipts and other documents.
2. Offset sales revenue: offset sales revenue with sales discount. The specific accounting entries are: debit: bank deposits or accounts receivable (red ink), credit: main business income (red ink), tax payable-value-added tax payable (output tax) (red ink).
3. Carry forward the sales cost: carry forward the sales cost according to the sales discount amount. The specific accounting entries are: debit: main business cost (red letter), and credit: inventory goods (red letter).
4. Record the reason of sales discount: attach the explanation of the reason of sales discount to the voucher, such as product quality problems, contract provisions, etc.