When you record an invoice for billable costs, QuickBooks changes the billing status from not billed to billed. The status doesn't change back to not billed even if you edit or delete the invoice. You have to manually change the status if you want to make costs billable again.
To do this task
Open the bill, check, or credit card charge you want to make billable again.
Go to the Vendor Center and click the Transactions tab.
Click the transaction type, and then click the transaction in the list on the right.
You can filter the list to find the transaction you're looking for.
Click the billed icon:
Answer Yes to the question that appears.
Save the transaction.
Troubleshoot invoice problems