An aging of a company's accounts receivable indicates that $9600 are estimated to be uncollectible. If Allowance for Doubtful Accounts has a $3970 credit balance, the adjustment to record bad debts for the period will require a debit to Bad Debt Expense for $5630. debit to Bad Debt Expense for $9600. debit to Allowance for Doubtful Accounts for $5630. credit to Allowance for Doubtful Accounts for $9600