How to Correct an Invoice Using a Credit Note

How to Correct an Invoice Using a Credit Note
Estimated Reading Time: 3 minutes
Applies to: All Plans

Quick Summary

If an invoice was created with an incorrect amount or product, you can correct it by creating a credit note. Trainin allows you to either fully credit an invoice or partially correct it by creating a new invoice with a negative amount.

Why This Matters

Invoices cannot be edited after they are created. To keep your financial records and accounting correct, any adjustment must be made through a credit note. This ensures the correction is properly recorded in your financial administration.

Steps for Creating a Full Credit Note

Step 1: Open the invoice that needs correction: Go to Finances > Invoices
 – Locate and select the invoice that contains the incorrect amount or product.

Step 2: Create a credit note for the invoice: Click the three-dot menu > Create credit note
 – This creates a credit note that reverses the full amount of the original invoice.

Step 3: Confirm the credit note: Click Create credit note
 – The system generates a credit note that cancels the original invoice amount in your financial administration.

Steps for Creating a Partial Credit Note

A partial credit note cannot be created directly from the original invoice. Instead, you create a new invoice with a negative line to correct part of the amount.

Step 1: Open the client’s invoice overview: Go to Clients > Select Client > Finances > Invoices
 – This shows all invoices associated with the client.

Step 2: Create a new invoice for the correction: Click Create Invoice
 – This invoice will be used to register the correction amount.

Step 3: Add a custom line with a negative amount: Add custom line
 – Enter the amount that needs to be corrected as a negative value. This creates a partial credit note that offsets part of the original invoice.

Step 4: Save the invoice: Click Save
 – The negative invoice adjusts the client’s balance and corrects the financial record.

Best Practice

  • Always add a short description in the credit note or negative invoice line explaining the reason for the correction. This helps your accountant understand the adjustment later.

  • Review invoices in Finances > Invoices

  • Create corrections using credit notes when needed

  • Export invoices for accounting via Finances > Invoices

Pro Tips

  • If the invoice has already been paid, the credit note corrects the invoice in your administration but does not automatically refund the payment.

  • If needed, you can refund the client separately through your payment provider.

  • Use partial credit notes when only part of the invoice amount needs to be corrected.

Common Questions

Can I edit an invoice after it is created?
 – No. Once an invoice is created, it cannot be edited. Corrections must be done by creating a credit note.

When should I use a full credit note?
 – Use a full credit note if the entire invoice was created incorrectly and needs to be reversed.

When should I create a partial credit note?
 – Create a partial credit note if only part of the invoice amount needs to be corrected.

Does a credit note automatically refund the client?
 – No. A credit note corrects the invoice in your financial records. Any refund must be processed separately.

Next logical steps

 – How to export Financial Reports for accounting
 – How to send a payment link or payment reminder to your customers