Hi dccblue

Thanks for reaching back out.  We understand how everyone would benefit from being able to see multiple months, side by side, on the Trial Balance.  Although QuickBooks Desktop has a number of ways of customizing your reports, there's no option to add multiple columns to the Trial Balance at this time.

As mentioned above, the workaround would be to export the data to an excel spreadsheet. It definitely sounds like this option would be extremely beneficial and time saving.  I suggest providing your recommendation to our Development Team by going to Help and the Send Feedback Online.

If you have any other questions or concerns, please don't hesitate to reach back out.  We'd be glad to assist!