When should I issue a credit note rather than edit or delete an invoice?

A credit note records a genuine reduction in an amount charged, such as an agreed price adjustment, returned goods or cancellation of part of a sale. It should identify the original invoice and explain the change. An invoice that remains valid but has not been paid is a different issue. Do not issue a credit note simply to remove an overdue balance from the debtor report. That can understate sales and conceal a collection problem. Establish whether the sale has changed, the invoice contains an error or the customer merely disputes payment. The answer determines the appropriate accounting action and supporting evidence to retain.

A draft invoice that has never been issued can often be corrected before approval. Once an invoice has been sent, paid, reconciled or included in reporting, preserving its history becomes more important. A credit note or a documented correction process can show the original charge and subsequent change clearly. Avoid deleting records to make the current balance look right while losing the explanation. Software permissions and invoice status affect which actions are available, but availability does not establish the correct treatment. Keep customer correspondence and approval for adjustments. The records should allow someone else to follow what was charged, what changed and why.

For VAT purposes, a valid credit note has specific conditions and information requirements, including a genuine adjustment linked to the original supply. Consider the original VAT treatment, the reason for the change and when the adjustment must be recorded. A later commercial price reduction is not necessarily handled like correcting an error on an earlier VAT return. Cash accounting and other circumstances can affect the entries. If the customer has already paid, decide whether the credit will be refunded or applied to another invoice, and record that separately. A credit note does not itself prove money has been returned or the bank transaction reconciled.

Record the credit against the correct customer and invoice, with a clear date, reason and approval. Check the resulting customer balance and any refund or allocation, rather than stopping when the document is created. Supplier credit notes should likewise be matched to the relevant purchase records. If the transaction sits in a locked period or a VAT return already submitted, ask before changing historic entries. CASS can help explain the accounting steps within the agreed bookkeeping service. Keeping the original invoice, adjustment and settlement linked makes reports easier to trust and helps avoid duplicate credits, unexplained balances or an accidental reduction in tax that is not justified.