How can I filer out prepayments from the AR aging report? Is there another report that would give me open invoices w/o showing prepayments?

I can provide information on how to access the report without prepayments details, @accounting-unite.

In QuickBooks Online, you can run Transaction List by Customer to view unpaid or open invoices. Here's how you do it:

1. On the left panel, click Reports.
2. In the search bar, enter/select Transaction List by Customer.
   
3. Click Customize.
4. Filter the needed details.
5. Put a checkmark beside Transaction Type.
6. Select Invoice.
   
7. Click Run report.
8. Select the Small Gear icon, then mark the A/R Paid option to display the unpaid transactions.
   

In case you need more information about our report features in QuickBooks. Feel free to check this article about running reports. This contains several resources that can help pull up information you need.

If you have other report concerns, please let me know. I’ll get back to you as soon as I can. Have a good one!