Credit Memo: What It Is, Meaning, Examples

A credit memo (short for credit memorandum) is a document a seller issues to a buyer that reduces the amount the buyer owes on a previously issued invoice. It is not a payment and not a cash refund: it is a written adjustment saying part or all of an earlier bill no longer stands, usually because goods came back, arrived damaged, or the invoice was priced wrong. The seller drops the receivable, the buyer drops the payable, and the credit stays open until it is applied against an invoice. Outside the US the same document is normally called a credit note. Last updated July 2026.

This guide covers what the term means, the accounting on both sides, why credit memos get issued, the fields one should contain, a worked example with journal entries, how a bank credit memo differs, and how to process one in accounts payable without losing the money. It is written for US finance and AP teams using QuickBooks, Xero, NetSuite, or Sage, in USD.

What is a credit memo?

A credit memo is a seller-issued document that reduces a buyer's outstanding balance on a specific invoice. It references the original invoice, states the amount credited and why, and works as a negative invoice. The full name is credit memorandum. "Credit note," "credit invoice," and, in a vendor relationship, "vendor credit" all describe the same instrument.

The distinction that trips people up is credit versus cash. A credit memo settles a dispute with paperwork, not with money moving. If the buyer has already paid in full and the seller owes $500 back, the seller can either issue a credit memo the buyer nets against a future purchase, or send an actual refund. Those are different transactions with different accounting.

What is a credit memo in accounting?

In accounting, a credit memo reverses part of a sale that has already been recorded. The seller reduces accounts receivable and records a contra-revenue account such as sales returns and allowances rather than deleting the original revenue. The buyer reduces accounts payable and reverses the matching expense or inventory cost. Sales tax is adjusted in proportion on both sides.

Sellers use contra-revenue instead of debiting sales directly because gross sales and returns are separate signals. A company whose credits climb every quarter has a quality or fulfillment problem, and netting those credits into revenue hides it. The offsetting entry lands in accounts receivable, where the open credit reduces the customer's balance and appears on their next statement.

On the buyer's side, treatment depends on what the original invoice bought. If it was expensed (services, supplies, a subscription), the credit reverses that expense in the same account it hit. If it bought inventory, the credit reduces inventory, and any of those units already sold means cost of goods sold needs a look too. Coding matters more than it sounds: a credit posted to miscellaneous income instead of back to the original line quietly overstates both costs and income.

Why is a credit memo issued?

A credit memo is issued when something about an invoice turns out to be wrong or incomplete after it was sent: goods returned, a short or damaged shipment, a pricing or quantity error, a discount agreed after the fact, a goodwill adjustment, or a duplicate invoice. Each reason adjusts a different part of the transaction.

What does a credit memo look like?

A credit memo looks like an invoice with the sign flipped. It carries seller and buyer details, a unique credit memo number, an issue date, a clear reference to the original invoice, the line items credited with quantity and unit price, the tax adjusted, the total credit, and a stated reason. That invoice reference is the field that makes the document usable.

• Document title: "Credit Memo," "Credit Memorandum," or "Credit Note" on the face, so nobody pays it as a bill.
• Credit memo number: unique, from a sequence separate from the seller's invoices.
• Issue date: determines which period the adjustment lands in.
• Original invoice number and date: without it, the credit cannot be matched and tends to sit unapplied.
• Seller and buyer details: legal names, addresses, account number, tax ID.
• Line items credited: description, quantity, unit price, extended amount, mirroring the invoice lines.
• Tax adjusted: sales tax credited in proportion to the goods credited, shown separately.
• Total credit: positive on a credit-labelled document, negative on an invoice-style layout. Both conventions exist.
• Reason: "10 units damaged in transit," "pricing correction per contract," "duplicate of INV-1042."
• PO number: where the sale was against a purchase order, so the buyer can match the adjustment.

Two fields do most of the work. The invoice reference lets AP apply the credit to the right open item, and the reason lets a reviewer decide in ten seconds whether the credit is what was negotiated. Credits missing either one are the ones that go stale.

Credit memo example

Here is a worked example with round numbers, purely as an illustration. A supplier invoices a distributor for 100 units at $50 each, $5,000 before tax, on invoice INV-1042. Ten units arrive damaged. Receiving documents the damage, the supplier agrees, and issues credit memo CM-0217 for $500 referencing INV-1042.

If the sale carried sales tax, the credit has to move the tax too. At a hypothetical 8 percent rate, the invoice was $5,000 plus $400 tax and the credit memo is $500 plus $40 tax: a $540 credit against a $5,400 invoice. Crediting the $500 and forgetting the $40 is one of the most common errors on both sides.

The supplier's receivable falls from $5,400 to $4,860, with $500 in sales returns and allowances and the tax liability adjusted. The distributor's payable falls by the same $540 and its inventory drops $500. If INV-1042 is unpaid, the distributor applies the credit and remits $4,860. If it already paid in full, it holds an open $540 credit to net against the next invoice from that supplier.

Credit memo journal entry

The entries mirror each other. The seller debits sales returns and allowances (contra-revenue) and credits accounts receivable. The buyer debits accounts payable and credits the expense or inventory account the original invoice hit. Sales tax recorded on the original transaction is reversed in proportion on both sides. Using the $540 example above:

A seller who takes physical goods back into sellable stock needs a second entry moving those units out of cost of goods sold and back into inventory. A credit for scrapped goods or a pricing error needs no such entry, because nothing moved. The full set, including write-offs and the cash refund variant, is in our guide to the credit memo journal entry.

Credit memo vs debit memo

A credit memo is issued by the seller and reduces what the buyer owes. A debit memo increases an amount owed, and it can come from either direction: a seller billing an undercharge, or a buyer notifying a supplier that a deduction is being taken. Same mechanism, opposite sign, different party driving.

The full breakdown, including how to handle a buyer-issued debit memo a vendor disputes, is in our comparison of credit memo vs debit memo.

Credit memo vs invoice vs refund

All three adjust a commercial relationship, but only one moves cash. An invoice asks for money. A credit memo cancels part of that ask on paper. A refund actually sends money back.

A credit memo often precedes a refund: the seller issues the credit to correct the books, then pays out the resulting credit balance if the customer wants cash rather than an offset.

What is a bank credit memo?

A bank credit memo is an entry on a bank statement that increases your account balance for something other than a deposit you made: interest earned, a note the bank collected on your behalf, or a fee reversed in error. It shares a name with the AP/AR credit memo but is otherwise unrelated.

You meet these during bank reconciliation. A bank credit memo is an item the bank has recorded and your books have not, so it gets added to the book balance. Its opposite, a bank debit memo, reduces the balance for service charges, NSF checks, or wire fees.

How to process a credit memo in accounts payable

Processing a credit memo in AP means treating it like an invoice in reverse: capture it, match it to the original bill and PO, verify the amount and tax, code it, enter it against the vendor, and apply it before the next payment goes out. The step people skip is the last one, and skipping it costs real money.

1. Receive and log it. Credit memos arrive by email, by mail, or buried on a vendor statement. Log the number, date, vendor, amount, and referenced invoice in the same queue as invoices.
2. Match it to the original invoice and PO. Confirm the credit relates to a bill you actually booked and, where relevant, to the receiving record that supports the claim.
3. Verify the amount and the tax. Recalculate against what was agreed, and check that sales tax was credited in proportion. Vendors get this wrong regularly, usually by crediting the net and leaving the tax on your balance.
4. Code it. Send the credit back to the account, cost center, and line the original invoice hit. Never a catch-all.
5. Enter it against the vendor. It is a vendor credit in QuickBooks and NetSuite, a supplier credit note in Xero, a purchase credit note in Sage. The walkthrough for the first is in our guide to a credit memo in QuickBooks, and the wider concept in what is a vendor credit.
6. Apply it in the next payment run. An entered credit is not a used credit. Apply it against an open invoice so the remittance nets down.
7. Confirm it on the vendor statement. The credit should show as applied next month. If it does not, chase it during vendor statement reconciliation, which is where unapplied credits surface.

Common mistakes with credit memos

Most credit memo problems are process failures, not accounting mysteries. These are the ones worth a control.

• Applying the credit to the wrong invoice. Common with vendors who bill the same amount monthly. The balance nets to the right total so nobody notices, but the aging is wrong and the invoice the credit belonged to still shows open.
• Missing the tax portion. If the invoice carried sales tax and the credit does not, you are still carrying tax on goods you returned.
• Forgetting to apply an open credit before a payment run. The credit is entered, the invoice is paid in full anyway, and the credit sits there. Some vendor terms expire credits, and closed accounts rarely pay them out. Run an open credits report before every run.
• Treating a vendor debit memo as a credit. A supplier debit memo increases what you owe. Booking it as a credit understates the liability and surfaces later, often at audit.
• Coding to the wrong account. Crediting a returned inventory purchase to miscellaneous income overstates income and inventory at once.
• Voiding the invoice instead of issuing a credit. Deleting a sent invoice destroys the audit trail. The credit memo exists so the correction stays visible.
• Never chasing the promised credit. A verbal agreement with a rep is not a credit memo. If the document never arrives, there is nothing to apply.

Handling credit memos at volume

None of this is hard on one credit memo. It gets hard at 200 a month across 80 vendors, where each arrives as a PDF in a different layout and someone has to read it, find the invoice number, key the lines, and check the tax. That retyping is where credits get dropped, misapplied, or lost in an inbox until they expire.

That narrow problem is what we work on. Our invoice data extraction software takes credit memo and invoice PDFs, including scans, and returns the fields as structured data in Excel, CSV, or JSON: document number, date, referenced invoice, vendor, line items, quantity, unit price, tax, total. From there you can match credits against open invoices in a spreadsheet or import them into QuickBooks, Xero, NetSuite, or Sage. It does not post journal entries, hold your ledger, or decide whether a credit is legitimate. Those judgments stay with your team. What it removes is the keying, which adds no value and causes most of the errors.