Hi there, @RBlazer.
Allow me to share some details to correct your reconciliation beginning balance issue in QuickBooks Desktop Mac.
The beginning balance will be incorrect if a previously cleared transaction in your register was voided, deleted, or changed, or a new transaction was added and cleared since your last reconciliation. You can run several reports to find reconciliation discrepancies. These are the following reports that you may need to check:
- Reconciliation Discrepancy report
- Previous Reconciliation report
- Audit Trail report
- Bank Account QuickReport
To know more about the process, you can refer to this article: Find reconciliation discrepancies (Mac).
Once done figuring out what caused the discrepancy, you can do a special or mini-reconciliation to correct your opening balance. It's a process that uses an "off-cycle" reconciliation date to make a correction. Here's an article for your reference: Reconcile bank and credit card accounts (Mac).
I'd also recommend contacting your accountant to ensure your books are accurate.
Please know that you're always welcome to tag my name in the comment section if you have other questions or concerns. Take care.
