Credit Note

A credit note is a formal accounting document that reduces or cancels the value of an invoice already issued to a customer. Rather than deleting or altering the original invoice - which most accounting systems do not permit once an invoice is finalized - a credit note offsets it, creating a clear audit trail that reflects the corrected transaction. The original invoice remains on the books, but the credit note reduces what the customer is required to pay.

Credit notes are sometimes referred to as credit memos, particularly in US business contexts, but "credit note" is the standard term in the UK and most international markets.

When a Credit Note Is Issued

The most common reasons for raising a credit note include:

• Returned goods: A customer sends back products - defective items, wrong specifications, or surplus stock - and the invoice needs to be adjusted down.
• Pricing errors: An invoice was raised at the wrong rate, applied an incorrect discount, or included items that were not delivered.
• Disputed amounts: A customer raises a formal dispute about part of an invoice, and both parties agree to reduce the charge.
• Service shortfalls: A job was partially completed, the agreed scope was reduced, or work was not delivered to the agreed standard.
• Cancelled orders: A customer cancels after an invoice has already been raised, and no chargeable work has been completed.

The credit note should always reference the original invoice number, state the reason for the adjustment, and record either the full amount being cancelled or the specific amount being reduced.

How Credit Notes Work in Practice

A credit note does not automatically mean the customer receives a cash refund. It creates a credit balance - a record that the customer owes less than previously invoiced. The business can handle that balance in one of two ways: apply it against the customer's next invoice, or issue a cash refund.

For VAT-registered businesses, credit notes carry VAT implications. When a credit note is issued, the VAT amount recorded against the original invoice needs to be adjusted to reflect the revised taxable value. This keeps VAT reporting accurate and ensures the business does not account for tax on income it will not receive.

From an accounting perspective, a credit note reduces the seller's accounts receivable and reduces the buyer's accounts payable. Both parties update their records to reflect the revised amount owed.

In Zigaflow, credit notes can be raised directly against an existing invoice, keeping the full adjustment history visible alongside the original transaction.