How do change an invoice from paid back to unpaid?

Hi there bernie13,

It's important that all your transactions are correctly entered for your books to be well-balanced. QuickBooks Online is a great tool able to help you keep track of invoices and payments so you know the amount a customer owes you. I can point you in the right direction to mark it as unpaid.

In order to mark the invoice as unpaid, the payment applied to the invoice would need to be removed. To do so, go to the Sales tab, then Invoices. Find the invoice in question, then click on it to open the menu to edit the transaction. In the top right, you should see the payments that have been applied, and you can click on them to open them. If these are payments that are meant to be deleted, you can do so by clicking on the More option once in the payment itself, then Delete.

If you have any other questions, feel free to reach out here.