Can i delete an invoice payment to make the invoice due again

Yes, you can delete an invoice to make it due again, @rcc2mindy.

Let me show you the steps on how you can do it in QuickBooks:

1. Go to the Sales menu and select Invoices.
2. Look for the paid invoice and click it to open.
3. On the upper right-hand corner, click the payment made.
4. Click the payment date to open the transaction.
5. Check the box for the paid invoices you wanted to delete.
6. Click More and select Delete. 
7. Once prompted, hit Yes.
8. Click Save and close.

You can also run the Invoices and Received Payments report to view the list of your paid invoices. Simply go to Reports and search for Invoices and Received Payments. 

That's it! Please let me know if there's anything else I can do to be of assistance. Have a great weekend!