Official Letter No. 4991/TCT-CS dated November 5, 2024, issued by the General Department of Taxation, provides guidance on issuing invoices for sales discounts and trade discounts.
In principle, trade discounts based on the quantity or sales volume of goods and services are adjusted on the invoice for the last purchase or the following period. If the discount amount is determined at the end of the sales discount program (period), an adjustment invoice is issued along with a statement listing the invoice numbers that need adjustment, the amount, and the adjusted tax. Based on the adjustment invoice, the seller and buyer declare the corresponding adjustments in revenue and tax.
Therefore, if the company incurs sales discounts and trade discounts as agreed in the master agreement, contract appendices, and sales contracts signed between the company and customers, and the company has complete documentation to ensure the legality and accuracy of documents supporting the discounts and trade discounts, the company issues an adjustment invoice as per legal regulations on sales invoices. Based on the issued adjustment invoice, the company declares the adjusted sales revenue in accordance with regulations
