Credit an invoice

Issued invoice no longer correct? A credit note fully reverses it — cleanly, with its own invoice number.

Open the invoice, tap ⋯, and choose Credit invoice. AirBill asks to confirm and explains that the credit note fully negates the invoice. After confirming you see Credit note created with both numbers, and Done takes you to the credit note.

The credit note is not sent automatically. If your customer should receive it, send it from its detail page like a regular invoice, or share the PDF or public link.

What to know first

Crediting is only available for an issued invoice that hasn’t been credited yet. A draft doesn’t need one — you edit or delete it.
A credit note reverses the invoice in full. Partial crediting doesn’t exist: to change part of an invoice, credit the whole thing and send a new, correct one.

What happens next

The original invoice gets the Credited status; the credit note appears as Credit note with a negative amount.
The credit note has its own invoice number, PDF, and public link.
Together the two add up to zero. Duplicate on the original prepares a new draft with the existing content.

Common problems

Credit invoice isn't in the menu

Already-credited invoices and credit notes themselves can’t be credited again. Drafts don’t have the action either — edit or delete those directly.

You only wanted to credit part of the invoice

Not possible in one step. Credit the full invoice and send a new one for the right amount.

The customer already paid the original invoice

Crediting doesn’t move any money — it corrects your records. Arrange the refund with your customer, or check with your accountant.