I've got your back, @Jennut77.

You can create a deposit to move the balance from the unpaid invoice to the asset account. Then, delete the invoice so it won't show as income or an account receivable in your QuickBooks Online. Let me guide you through the process.

To create the deposit, please follow the steps below:

1. Click the + New button, then select Bank deposit.
2. Choose the bank account from the drop-down.
3. Go to the Add funds to this deposit section.
4. Select the customer from the Received From drop-down, then select the asset account you created in the Account drop-down.
5. Enter the amount and the necessary information.
6. Click Save and close.

I'm adding this article for more guidance: Record and make bank deposits in QuickBooks Online.

Once done, let's now delete the invoice. Here's how:

1. Click Sales from the left menu, then select Invoices.
2. Find and open the unpaid invoice.
3. Select More at the bottom and choose Delete.
4. Click Yes to confirm the action.

You can read this article for more details: Void or delete transactions in QuickBooks Online.

Also, if you need further assistance entering this, I suggest seeking help from your accountant. They may provide additional steps based on your recording practices.

You might want to review all your sales transactions made in QuickBooks Online. You can go to the Sales menu and select All Sales.

Our doors are always open to help you again if you have any other concerns or follow-up questions. Wishing you all the best, @Jennut77.