Great to see you here in the Community, @mlbsauer. I'd be happy to share some details about clearing the transactions from the previous years in QuickBooks Desktop (QBDT).

Reconciling the transactions is the best way how to clear your past transactions. You may do it one year at a time to ensure that the other possible adjustments such as service fees, and interests will be applied on the correct year.

You can begin with creating a back up file and prepare your statements to enter the correct ending balance per year. I'd also recommend speaking with an accounting professional to help you manage your books.

I've got this article for more information about the steps to clear the previous transactions: Reconcile an account for multiple months or years of transactions and financial statements.

You can always comment below if you have other questions or concerns about QuickBooks. I'll be here to help. Take care always.