How do I mark an old invoice (that has been paid) Paid without changing bank balance? For QB online 2020

Hi @kimberly13,

I'll walk you through on how you can mark an invoice as paid without affecting your bank balance.

You'll first need to create a credit memo. You can link this transaction later on to your invoice to close it.

Here's how:

1. Go to the + New menu.
2. Select Credit memo.
3. Choose the customer in question under the Customer drop-down menu.
4. Fill the product or service under the Product/Service column.
5. Type in the amount as well. This should be the same amount on the invoice you wish to mark as paid. 
6. When done, click Save and close.

Now, we need to link this to the invoice. Follow the steps below:

1. Highlight the Sales tab.
2. Choose Invoices.
3. Search for the invoice in question, then click to open it.
4. Click the Receive payment button. 
5. On the Receive Payment page, ensure the only selected invoice is what you want to mark as paid. 
6. Under the Credits section, tick the checkbox for the credit memo you created earlier. 
7. Tap Save and close when done.

Following the sets of steps provided above, you'll have recorded a payment to an invoice without affecting your bank balance. 

It would still be best to link the actual payment for this invoice. If it was recorded as a deposit, you can follow the steps in this article: How to link a deposit to an invoice.

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