Can I refund customer on invoice?

Yes, you can refund a customer invoice, @sales-boatybits-.

I'll share an insight on your customer refunds and how to record them in your QuickBooks Online (QBO) company.

You can create a credit note to record an invoice refund if invoice has been paid. Here's how:

1. Select + New and select Credit note.
2. In the Customer field, select the appropriate customer.
3. Enter the Credit Note Date, Amount, VAT, and Product/Service (This is the category, product, or service you’re getting a credit for).
4. Select Save and close.

However, if it is a service that was canceled, you won't have to enter a credit note. We can use the refund receipt instead. You can follow these steps:

1. Tap the New menu in the upper left and select Refund Receipt under Customers.
2. Click the Customer drop-down to enter the customer you’re working on.
3. In the Refund From drop-down, pick the bank you deposited the payment for the invoice.
4. Add service in the Product/Service column and then the amount.
5. Fill in the remaining field boxes.
6. Hit Save and close.

You can also view this article for other options you can do for customer refunds: Record a customer refund in QuickBooks Online. 

Feel free to post a comment below if you have other questions. I'll get back to you as soon as I can.