Definition of 'Debit Note'
A document used by a purchaser to inform a vendor of the quantity and dollar amount of goods being returned, and requesting that the dollar amount be returned to the purchaser. A debit note is often used to return goods on credit. The vendor then issues a credit note to the purchaser indicating that the goods have been received, and that the purchaser will not have to pay for them.
Also known as a "debit memo".
Investopedia explains 'Debit Note'
Debit notes are generally used in business-to-business transactions. Such transactions often involve an extension of credit, meaning that a vendor would send a shipment of goods to a company before the goods have been paid for. Although real goods are changing hands, until an actual invoice is issued, real money is not. Rather, debits and credits are being logged in an accounting system to keep track of inventories shipped and payments owed.