Thanks for the follow-up questions, Jmp17.
These negative amounts are usually caused by Credit Memo entries, over payments, or possible duplicate payments.
The steps provided by Mark_R will apply for your future invoices given that the credits are from the customer over payments or credit memos. Therefore, you don't have to void/delete the received payments.
In case the credits are caused by multiple entries, please delete/void the duplicate.
- From the A/R Aging report, double-click on the credits.
- Click on the Delete button.
- Select Yes to delete.
On the other hand, when making deposits, make sure to select the A/R account in the Account column. This way, you'll be able to link it to your invoices.
Keep us posted if you've got more questions. We are here to help.
