Hi there, @telrod.
Thank you for posting in the Community. Allow me to help share some details about customizing the Trial Balance report.
You can customize the Trial Balance in QuickBooks Desktop, however, the option to add the Beginning Balance in the report isn't available. As mentioned by my colleague, Alessandra_B this report only confirms the total of all debit balances matches the total of all credit balances in each account.
I've attached some articles as future reference:
These resources should help to get you on the right track. Stay in touch if you have any other questions about customizing reports in QuickBooks Desktop. I'll be happy to help you out. Have a great rest of your week.
