Credit note and debit note under MyInvois
How mistakes and changes to a validated e-invoice are handled.
Once an e-invoice has passed validation in MyInvois, it cannot simply be edited. The LHDN guideline provides for a rejection request by the buyer within 72 hours of validation, and for cancellation by the supplier in that period. After that, corrections are made with a credit note, a debit note or a refund note, each linked to the original e-invoice. 4invoices can create a credit-note style document as an ordinary invoice with negative amounts if you need one for your records, but it does not submit anything to MyInvois.
- 72 hours after validation: rejection request by the buyer.
- After that period: credit note, debit note or refund note.
- Notes refer to the original e-invoice.
- 4invoices does not submit notes to MyInvois.
How it works
Identify what changed. A lower amount or a return calls for a credit note. An additional charge calls for a debit note.
If the 72-hour period has not passed, check whether cancellation or a buyer rejection request is the right route.
Otherwise issue the note in MyInvois with a reference to the original e-invoice.
Keep the tax rate consistent with the original line, so the tax effect of the correction is clear.
Keep both documents in your records.
Legal framework
- LHDN (IRBM) e-Invoice Guideline — cancellation, rejection, credit and debit notes.
- LHDN (IRBM) e-Invoice Specific Guideline.
- MyInvois SDK — document types.
Frequently asked questions
Can I edit a validated e-invoice?
No. Within the 72-hour period you can cancel it or the buyer can request rejection. Afterwards you issue a credit note or debit note.
What is the difference between a credit note and a refund note?
A credit note reduces the amount of an earlier e-invoice. A refund note documents the money returned. See the guideline for when each is used.
Which document adds to an invoice?
A debit note.
Does the tax change with a note?
A note adjusts the amounts of the original e-invoice, including the tax on the affected lines.
Can 4invoices submit credit or debit notes to MyInvois?
No. 4invoices does not connect to LHDN. It creates invoices with a tax rate per line, in any currency with an exchange rate, and gives you a PDF. There is a free 6-month trial without a card.