I have a customer account that had about 100 invoices from 2013 that were uncollectable. 

Customer Balance: $5,800 (100 invoices)

Journal Entry Made in 12/31/2014                                 Debit            Credit

                                 Accounts Receivable                   $7,450

                                 Allowance for Doubtful Account                         $7,450

How do I clear out the outstanding invoices as it still shows up in my aging report? I tried going to the receive payment and then discount, but it wouldn't let me enter the discount of bad debt.