Value Added Tax Consolidation Act 2010 section 67

Amendments to invoices

Section 67 sets out the rules for amending VAT invoices where the consideration changes after the invoice has been issued, or where the wrong VAT rate was charged.

• Where the consideration on an invoice increases, the supplier must issue a supplementary invoice; where it decreases or a discount is allowed, the supplier must issue a credit note and the recipient must reduce their input tax deduction by the VAT amount shown on the credit note.
• A customer entitled to receive a credit note may instead issue a debit note to the supplier; if the supplier accepts it, both parties are treated as if a credit note had been issued and received.
• Where an invoice showed a higher VAT rate than the correct rate, the consideration on the original invoice is deemed reduced to nil, a credit note must be issued to cancel it, and a replacement invoice must then be issued at the correct rate.
• Where the parties agree that a price reduction or discount does not alter the VAT amount on the invoice, no credit note is required and neither party adjusts their VAT position — but this exception does not apply to suppliers who account for VAT on the cash-receipts basis.