I see this is your first question so let me take the time to welcome you here to the Intuit Community. I'm here to share some information about incorrect customer aging dates in QuickBooks Desktop (QBDT).
Just to confirm, are you referring to the A/R Aging Detail report? If so, this report is base on the Due Date, not the Invoice Date. For example, if you created an invoice dated 01/01/2019 that has a Net 30 term, then the due date became 01/31/2019. Now, this invoice will be placed on 1-30 on the report.
I also attached a sample screenshot below.
That should answer your concern for today. Just in case, you can also check out this article for future reference: Understand reports.
I hope this response finds you with a smile. Please let me know if you're referring to something else in the comment section. I'm always here to help. Take care and have a great day!
I, too, am having trouble with my A/R Aging reports. As you can see by the screenshot, even though I specified "Sort By: Due Date" at the top, the aging is calculated from the Invoice Date and therefore is showing all invoices I entered within the last 30 days as aged 1-30, regardless of the Due Date.
In response to another issue I posted, I was advised to Rebuild my data, which I've done, and this report is still calculating by Invoice Date.
The problem is with both the "Detail" and "Summary" reports.