Important: This action will permanently deactivate the invoice and cannot be undone. If the invoice was paid online through Stripe, process the refund first before annulling. For refund instructions, refer to "How to Activate CompanyOn Online Payment Processing".
Steps to Annul an Invoice
In the left sidebar, click the billing icon to open the Billing module.
Click on the "Invoices" tab.
Find the invoice you want to annul in the list.
Click the "X" icon on the right side of the invoice row under the Actions column.
A confirmation dialog will appear with three options:
Bad Debt — mark the invoice as bad debt
Annulled — permanently deactivate the invoice
Cancel — go back without making changes
Click "Annulled" to confirm.
Note: Once annulled, the invoice becomes inactive. A new invoice can be created if necessary.

2. Next, select the annulled option for the invoice to be canceled, as shown below: