Template of the Credit Memo

A credit memo (also called a credit note) is a document issued by a seller to a buyer to reduce the amount owed on a previous invoice. It is commonly used to correct billing errors, acknowledge returned goods, apply retroactive discounts or resolve service disputes. A credit memo is not a refund in itself – it adjusts the buyer's account balance, which can then be applied to a future purchase or settled as a refund.

What should a credit memo include?

There is no federally mandated format for a credit memo, but it should contain enough detail for both parties – and their accountants – to trace the adjustment back to the original transaction.

Essential information

Document label – "Credit Memo" or "Credit Note".
Credit memo number – a unique sequential identifier for tracking.
Date of issue – the date the credit memo is created.
Original invoice reference – the invoice number (and date) being corrected. This is critical for matching the adjustment to the right transaction.
Seller details – business name, address, EIN (Employer Identification Number) and state tax ID if registered for sales tax.
Buyer details (Bill to) – business name or personal name, billing address.
Reason for the credit – a clear explanation of why the adjustment is being made (e.g. "Returned 10 units of Item #A-205" or "Pricing correction per contract terms").
Description of items or services credited – what is being adjusted, with line-item detail.
Credit amount – the total amount being credited, shown as a negative or clearly labeled reduction.

Recommended additional information

Ship to address – if different from the billing address (especially relevant for goods returns).
Purchase order (P.O.) number – reference to the original purchase order for three-way matching.
Quantity and unit price – for partial credits, show exactly how many units are being credited and at what price.
Sales tax adjustment – if the original invoice included sales tax, the credit memo should reduce the tax proportionally.
Settlement method – how the credit will be applied (refund to original payment method, credit against next invoice, or account credit).

A credit memo can only be issued by the seller. The buyer cannot create a credit memo on their own – if they believe an adjustment is warranted, they must request one from the seller. This is an important distinction for accounts payable and receivable teams.

Sales tax on credit memos: If the original invoice included state or local sales tax, the credit memo should adjust the tax accordingly. In most states, you can claim a sales tax deduction on your return for the period in which the credit memo was issued. Keep the credit memo and the original invoice together as documentation – your state's Department of Revenue may require both during an audit.

When and why is a credit memo used?

Credit memos are issued after an invoice has been sent to correct or adjust the amount owed by the buyer. Typical scenarios include:

Product returns – The buyer returns part or all of a shipment. The credit memo reduces the outstanding balance by the value of the returned goods.
Billing errors – The original invoice included incorrect pricing, wrong quantities or a duplicate charge. A credit memo corrects the record without voiding the entire invoice.
Service disputes – The client received incomplete or unsatisfactory services. A credit memo acknowledges the shortfall and adjusts the amount owed.
Retroactive discounts – A loyalty rebate, volume discount or promotional pricing that was agreed after the original invoice was issued.
Overpayments – The customer accidentally paid more than the invoiced amount. A credit memo records the surplus, which can be applied to a future invoice or refunded.
Order cancellation – The customer cancels an order that has already been invoiced but not yet delivered. The credit memo reverses the full invoice amount.

Credit memo vs. refund: A credit memo reduces the buyer's account balance – it does not necessarily mean money is returned. The credit can be applied to a future purchase, offset against another outstanding invoice, or settled as a cash refund. The settlement method should be stated on the credit memo so both parties are clear on how the adjustment will be handled.

Always reference the original invoice – a credit memo without an invoice reference is difficult to reconcile and may cause confusion during audits.
Issue promptly – the sooner you issue a credit memo after the issue arises, the easier it is to reconcile both sets of books.
Use sequential numbering – maintain a separate number series for credit memos (e.g. CM-001, CM-002) so they are easy to distinguish from regular invoices.
Keep records for at least 3 years – the IRS requires supporting documentation for all items on your tax return. Credit memos are part of that documentation.