How to Correct an Invoice After You Have Sent It

Every bookkeeper eventually sends an invoice with a mistake. The fix is a process, not a deletion: correct the record while preserving the audit trail.

Small typo (address, name)

If only the address or a name is wrong and the amounts are unchanged, a corrected copy of the same invoice is usually acceptable. Issue it with the same number and a note that it replaces the earlier version.

A name or address typo does not change the amounts, so there is nothing to reverse in your books. You are simply reissuing the document with the correct details.

Keep the note explicit, such as "replaces the version issued on 12 March — corrected address". That way the two copies cannot be mistaken for two separate invoices.

Because the number stays the same, the audit trail is not disrupted. The client updates their records and the corrected copy becomes the operative document.

• Corrected copy may keep the same number.
• Note that it replaces the earlier version.
• No bookkeeping reversal is needed for a pure typo.

Wrong amount or line items

If the amount is wrong, issue a credit note for the difference or the full amount, then a corrected invoice. This keeps both documents traceable and your VAT correct.

A wrong quantity, unit price or line item is an amount error. Correcting it by editing the original silently would leave your books showing a number you never actually charged.

For a small difference, credit only the delta. For a fundamentally wrong invoice, credit the whole thing and reissue it with the correct figures.

The credit note and the corrected invoice should both reference the original number, so the three documents form a chain that an auditor can follow without asking.

• Never delete or overwrite the original.
• Use a credit note for amount corrections.
• Keep a note linking the documents.

Correcting VAT

If the original invoice carried VAT and the amount changes, the VAT changes with it. The credit note must reverse the correct VAT amount, not just the net figure.

Report the VAT correction in the period you issue the credit note. If the original VAT was reported in an earlier period, the correction appears in the current return.

Check the VAT rate as well as the amount. If you applied the wrong rate — for example, 8.1% where the reduced 2.6% rate applies — the credit note and corrected invoice must reflect the correct rate.

Keeping the VAT correction clean matters most for VAT-registered businesses. A mismatch between your invoices and your VAT return is one of the first things an audit will catch.

Recording the correction

A short note — "Replaces invoice 2026-004 due to wrong quantity" — turns a confusing pair of documents into an obvious, audit-ready trail.

Post the credit note as a negative against the same revenue account, so your profit and loss shows the true amount you ultimately charged.

File the original, the credit note and the corrected invoice together. When all three sit in one place, the correction explains itself to anyone who looks.

Use software that links documents by number rather than relying on memory. facturio keeps the chain of original, credit note and correction visible, so nothing gets lost in the shuffle.

• Reverse the correct VAT amount on the credit note.
• Report the correction in the period the credit note is issued.
• File original, credit note and correction together.
• Note the reason and the original number on every document.